1
|
Blanco-Moreno JM, Caballero-López B, Cook SM, Foster SP, Frydryszak D, Laskowski R, Ortega-Ramos P, Rasko M, Reichardt P, Sousa JP, Sowa G, Śliwińska-Grochot R, Winkler J. Species Sensitivity Distribution (SSD) profiles towards λ-cyhalothrin for key ecosystem service provider (ESP) species across five European countries representing different pedoclimatic zones. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 954:176412. [PMID: 39322074 DOI: 10.1016/j.scitotenv.2024.176412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 09/14/2024] [Accepted: 09/18/2024] [Indexed: 09/27/2024]
Abstract
Although our understanding of the dramatic worldwide loss of biodiversity in recent decades is far from adequate, one of the main factors in areas dominated by agriculture is undoubtedly the widespread use of synthetic pesticides. Unfortunately, the ecological risk assessment (EcoRA) for pesticides is based on a few single-species bioassays which do not allow for the evaluation of risks to whole communities. Here we present the results of an experimental assessment of the risk to the ecosystem service provider (ESP) communities - pest control agents - from exposure to the commonly used pyrethroid insecticide, λ-cyhalothrin. The study was performed in five European countries (Germany, Poland, Portugal, Spain, United Kingdom) representing different pedoclimatic zones. Representatives of the most common species of the ESP communities in each country were exposed in a standardized insecticide-coated glass vials bioassay to five doses of λ-cyhalothrin: 0.8 %, 4 %, 20 %, 100 %, and 200 % of the recommended field dose (RFD) plus an untreated control. Based on the calculated LD50s, species sensitivity distributions (SSDs) were estimated for each country and on combined data. In all five countries, the estimated hazardous concentration for 5 % of the species (HD5) was between 0.23 % and 1.67 % RFD, with HD5 = 0.44 % RFD based on combined data. At the RFD = 7.5 g a.i./ha (active ingredient per hectare), the predicted affected fraction of the ESP communities was between 96.4 % and 99.9 % of the species (98.5 % for combined data). The results indicate an extremely high risk to ESP communities across Europe associated with the use of λ-cyhalothrin at the recommended doses when these species are exposed to insecticide treatment. We recommend that EcoRA should include multi-species approaches, such as SSD, to better protect entire ESP communities from the negative impacts of pesticides.
Collapse
Affiliation(s)
- José M Blanco-Moreno
- Agroecology Group, Botany and Mycology Unit, Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, Universitat de Barcelona, Av. Diagonal 643, 08028 Barcelona, Spain; Institut de Recerca de la Biodiversitat (IRBio), Faculty of Biology, Universitat de Barcelona, 08028 Barcelona, Spain.
| | - Berta Caballero-López
- Department of Arthropods, Natural Sciences Museum of Barcelona, Castell dels Tres Dragons, Picasso Av., 08003 Barcelona, Spain.
| | - Samantha M Cook
- Protecting Crops & Environment, Rothamsted Research, Harpenden, UK.
| | - Stephen P Foster
- Protecting Crops & Environment, Rothamsted Research, Harpenden, UK.
| | - Danuta Frydryszak
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
| | - Ryszard Laskowski
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | | | - Mykola Rasko
- Centre for Functional Ecology, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, Portugal
| | - Pauline Reichardt
- Department of Organic Agriculture, Agricultural and Biosystems Engineering, University of Kassel, Nordbahnhofstr. 1a, 37213 Witzenhausen, Germany
| | - José Paulo Sousa
- Centre for Functional Ecology, Associate Laboratory TERRA, Department of Life Sciences, University of Coimbra, Portugal.
| | - Grzegorz Sowa
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland
| | - Renata Śliwińska-Grochot
- Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, Gronostajowa 7, 30-387 Kraków, Poland.
| | - Julian Winkler
- Department of Organic Agriculture, Agricultural and Biosystems Engineering, University of Kassel, Nordbahnhofstr. 1a, 37213 Witzenhausen, Germany.
| |
Collapse
|
2
|
Liu X, Wang Q, Liu X, Xiao D, Liu TX, Liang P. Molecular mechanisms for selective action of afidopyropen to Myzus persicae and Coccinella septempunctata. PEST MANAGEMENT SCIENCE 2024; 80:3893-3900. [PMID: 38511881 DOI: 10.1002/ps.8092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/11/2024] [Accepted: 03/19/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Afidopyropen is a novel insecticide with high selectivity between sucking insects such as the peach aphids Myzus persicae and natural enemies like the seven-spotted lady beetle Coccinella septempunctata. However, the mechanisms of selective action for afidopyropen remain unknown. RESULTS The LC50 values of afidopyropen to the 1st-4th instar larvae and adult C. septempunctata were 372- to more than 7267-fold higher than that to adult M. persicae. Though the activity of cytochrome P450s in M. persicae was 6.1- to 7.5-fold higher than that in C. septempunctata, the latter has much higher activities of carboxylesterase (CarEs) and glutathione S-transferases (GSTs), and the crude enzyme of C. septempunctata and M. persicae showed similar metabolism efficiency to afidopyropen. Molecular docking results demonstrated that afdopyropen showed higher binding affinity to the vanilloid-type transient receptor potential (TRPV) channel of M. persicae (-9.1 kcal/mol) than to that of C. septempunctata (-8.2 kcal/mol). And the EC50 value of afdopyropen to the TRPV channel of C. septempunctata (41 360 nM) was 19 885-fold higher than that in M. persicae (2.08 nM). CONCLUSIONS Our results demonstrated that the significantly different sensitivity of M. persicae and C. septempunctata TRPV channel to afidopyropen play a key role in the high selectivity of afidopyropen. These findings provide new insights into the selective mechanisms of afidopyropen against insect pests and natural enemies as well as the theory support for coordinated application of chemical control and biological control. © 2024 Society of Chemical Industry.
Collapse
Affiliation(s)
- Xiaolan Liu
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Qianwen Wang
- Department of Entomology, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China
| | - Xinxin Liu
- Institute of Plant Protection, Beijing Academy of Agriculture and Forest Science, Beijing, China
| | - Da Xiao
- Institute of Plant Protection, Beijing Academy of Agriculture and Forest Science, Beijing, China
| | - Tong-Xian Liu
- Institute of Entomology, Guizhou University, Guiyang, China
| | - Pei Liang
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, China
| |
Collapse
|
3
|
Lu QC, Yu JM, Liu HL, Wu XL, Wei SJ, Lei M, Cai P, He HG, Pu DQ. Stable composition of gut microbiome in the Asian ladybeetle Coccinella septempunctata reared on natural and artificial diets. Sci Rep 2024; 14:71. [PMID: 38168578 PMCID: PMC10761721 DOI: 10.1038/s41598-023-49885-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024] Open
Abstract
The Asian ladybeetle, Coccinella septempunctata, is an important insect of predatory natural enemy, which has a strong control effect and application prospects for aphids, whiteflies, mealybugs, and other small-sized pests of agriculture and forestry crops. Gut microbiota composition posed impacts on development of insects. In order to clarify the effect of artificial feed feeding on the intestinal microbial species and structure of C. septempunctata, we compared the intestinal microbial flora of C. septempunctata reared on bean aphids and artificial food for 15 days. Results show that Proteobacteria was the dominant component in all groups at phylum level, Rhodobacter, Methylovigula, Burkholderia, and Bradyrhizobium were the dominant bacteria among all groups at genus level. As to the differences in bacterial community structure and diversity, there is no significant difference between Shannon index and Simpson index, the principal components analysis of the bacterial communities, and the samples were roughly distributed in different regions. After 15 days of feeding, artificial diet did not significantly reduce the microbial diversity of the gut of C. septempunctata compared to the aphid group, and there was no significant effect on the abundance of dominant flora in the gut of C. septempunctata, C. septempunctata gut has a similar core microbiota. This study clarifies the effects in intestinal microbial diversity and composition structure of the C. septempunctata with artificial diet, and provides a theoretical basis for understanding the intestinal microorganisms and optimizating the artificial diet of C. septempunctata.
Collapse
Affiliation(s)
- Qiu-Cheng Lu
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
- China West Normal University, Nanchong, 637002, China
| | - Jia-Min Yu
- Sichuan Tobacco Company, Chengdu, 653100, China
| | - Hong-Ling Liu
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
| | - Xing-Long Wu
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
| | - Shu-Jun Wei
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Min Lei
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
| | - Peng Cai
- Horticultural Institute, Sichuan Academy of Agricultural Sciences, Vegetable Germplasm Innovation and Variety Improvement Key Laboratory of Sichuan Province, Chengdu, 610066, China
| | - Heng-Guo He
- China West Normal University, Nanchong, 637002, China.
| | - De-Qiang Pu
- Institute of Plant Protection, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China.
| |
Collapse
|
4
|
Afza R, Afzal A, Riaz MA, Majeed MZ, Idrees A, Qadir ZA, Afzal M, Hassan B, Li J. Sublethal and transgenerational effects of synthetic insecticides on the biological parameters and functional response of Coccinella septempunctata (Coleoptera: Coccinellidae) under laboratory conditions. Front Physiol 2023; 14:1088712. [PMID: 36726846 PMCID: PMC9885102 DOI: 10.3389/fphys.2023.1088712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 01/04/2023] [Indexed: 01/17/2023] Open
Abstract
Synthetic insecticides have been an inevitable part of plant protection throughout the world. Sublethal effects of these chemicals on beneficial insect species are one of the contemporary issues these days. Using the age-stage, two-sex life table model, this study evaluated the sublethal and transgenerational effects of six synthetic insecticides (imidacloprid, thiamethoxam, lambda-cyhalothrin, cypermethrin, chlorpyrifos and profenofos) commonly applied to winter vegetables, on the fitness and predation of the seven-spotted ladybeetle, Coccinella septempunctata, which is an efficient predator of aphids worldwide. According to results, all insecticides at their sublethal doses (LC30) significantly suppressed the emergence of adults, adult weight, fertility and fecundity of the parental generation compared to control treatment. The larval stage was prolonged and oviposition, fecundity and total longevity of the adult beetles were decreased in unexposed progeny whose parents were exposed to sublethal doses of all insecticides. Moreover, the biological parameters of adults, including the intrinsic rate of increase (r), finite rate of increase (λ) and net reproductive rate (R 0) were significantly reduced when exposed to sublethal doses of insecticides. The predation rate of the F1 generation adults was also decreased after exposure to the sublethal doses of insecticides. However, chlorpyrifos, profenofos, lambda-cyhalothrin and cypermethrin exhibited more deleterious effects on the fitness and population parameters of beetles than imidacloprid and thiamethoxam.
Collapse
Affiliation(s)
- Rahat Afza
- Department of Entomology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Ayesha Afzal
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China,Institute of Molecular Biology and Biotechnology, The University of Lahore, 1-Km Defense Road, Lahore, Pakistan
| | - Muhammad Asam Riaz
- Department of Entomology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Zeeshan Majeed
- Department of Entomology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Atif Idrees
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China,Guizhou Provincial Key Laboratory for Agricultural Pest Management, Institute of Entomology, Ministry of Agriculture, Guizhou University, Guiyang, China,*Correspondence: Atif Idrees, ; Jun Li,
| | - Ziyad Abdul Qadir
- Honeybee Research Institute, National Agricultural Research Centre, Park Road, Islamabad, Pakistan,Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE, United States
| | - Muhammad Afzal
- Department of Entomology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Babar Hassan
- University of the Sunshine Coast, Maroochydore, QLD, Australia
| | - Jun Li
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China,*Correspondence: Atif Idrees, ; Jun Li,
| |
Collapse
|
5
|
Potin DM, Machado AVA, Barbosa PRR, Torres JB. Multiple factors mediate insecticide toxicity to a key predator for cotton insect pest management. ECOTOXICOLOGY (LONDON, ENGLAND) 2022; 31:490-502. [PMID: 35129714 DOI: 10.1007/s10646-022-02526-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
Mortality of agricultural pests caused by arthropod predators is a valuable ecosystem service for crop production. The earwig, Euborellia annulipes (Lucas), attacks different pest species in various crop ecosystems, including larvae and pupae of the boll weevil, Anthonomus grandis grandis (Boh.). In this study, multiple factors were assessed to measure the selectivity of insecticides used against sap-sucking and chewing cotton pests for two E. annulipes populations. Nymphs and adults of E. annulipes were exposed to the insecticides in two ways: ingestion of contaminated prey, and contact with dried residues on either inert surfaces or treated plants bearing prey. Pymetrozine, chlorantraniliprole, and spinetoram had little effect on the predator regardless the tested earwig population, life stage with developmental time and survival, or the route of exposure (ingestion and residual). Cyantraniliprole dried-residue impeded nymph to complete development and only 27% of adults survived until 20 days after exposure. Pyriproxyfen was harmless through acute toxicity to nymphs and adult earwigs (70-100% survival 72 h after exposure), but prevented normal development of nymphs to adults causing chronic toxicity. Chlorfenapyr, indoxacarb, lambda-cyhalothrin, chlorpyrifos, dimethoate, and malathion were harmful to the predator regardless life stage or method of exposure. The negative impact of thiamethoxam, lambda-cyhalothrin and indoxacarb was diminished when exposure occurred on plants with predator allowed to shelter in the soil. The results indicate that insecticide selectivity outcome varies by the insecticide, predator life stage and the predator's behavior. Therefore, testing different predator life stages via several routes of exposure, without denying the insect the opportunity to engage in its normal behavior can provide better estimates of insecticide selectivity.
Collapse
Affiliation(s)
- Denner Manthay Potin
- Departamento de Agronomia-Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, Recife, PE, 52171-900, Brazil
| | - Anderson Vinnicius Arruda Machado
- Departamento de Agronomia-Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, Recife, PE, 52171-900, Brazil
| | - Paulo Roberto Ramos Barbosa
- Universidade Federal dos Vales do Jequitinhonha e Mucurí - Campus Unaí, Instituto de Ciências Agrárias. Av. Universitária, no. 1000, 38610000, Unaí, MG, Brazil
| | - Jorge Braz Torres
- Departamento de Agronomia-Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, Recife, PE, 52171-900, Brazil.
| |
Collapse
|
6
|
Twardowski JP, Hurej M, Twardowska K. Effect of Ingestion Exposure of Selected Insecticides on Coccinella septempunctata and Harmonia axyridis (Coleoptera: Coccinellidae). INSECTS 2021; 12:434. [PMID: 34064985 PMCID: PMC8150297 DOI: 10.3390/insects12050434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 04/25/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022]
Abstract
The sensitivity to thiacloprid and lambda-cyhalothrin ingested from prey organisms was studied in Coccinella septempunctata and Harmonia axyridis, since the effect of ingestion exposure to these insecticides is unknown in these species. All developmental stages of the ladybirds were fed on Acyrthosiphon pisum treated with half or full field rate of the insecticides. Almost all instars were killed within 3 h of the start of ingestion of lambda-cyhalotrin-treated prey. The action of thiacloprid was more extended in time in both coccinellids and more variable between their instars. Reducing the field rate of lambda-cyhalothrin seems to have no practical value for the survival of either of the coccinellid species. Contrastingly, using half instead of the full field rate of thiacloprid may enhance the chances of survival in L1, L2, and L4 larvae of both species. Of all developmental stages tested, the survival dynamics of the adults of either species are closest to one another, whereas the apparent difference in the species response to the dose rate of thiacloprid was found in the L4 stage.
Collapse
Affiliation(s)
- Jacek Piotr Twardowski
- Department of Plant Protection, Wroclaw University of Environmental and Life Sciences, Grunwaldzki Sq. 24a, 50-363 Wroclaw, Poland; (M.H.); (K.T.)
| | | | | |
Collapse
|
7
|
Pisa L, Goulson D, Yang EC, Gibbons D, Sánchez-Bayo F, Mitchell E, Aebi A, van der Sluijs J, MacQuarrie CJK, Giorio C, Long EY, McField M, Bijleveld van Lexmond M, Bonmatin JM. An update of the Worldwide Integrated Assessment (WIA) on systemic insecticides. Part 2: impacts on organisms and ecosystems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:11749-11797. [PMID: 29124633 PMCID: PMC7921077 DOI: 10.1007/s11356-017-0341-3] [Citation(s) in RCA: 110] [Impact Index Per Article: 36.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 09/25/2017] [Indexed: 05/15/2023]
Abstract
New information on the lethal and sublethal effects of neonicotinoids and fipronil on organisms is presented in this review, complementing the previous Worldwide Integrated Assessment (WIA) in 2015. The high toxicity of these systemic insecticides to invertebrates has been confirmed and expanded to include more species and compounds. Most of the recent research has focused on bees and the sublethal and ecological impacts these insecticides have on pollinators. Toxic effects on other invertebrate taxa also covered predatory and parasitoid natural enemies and aquatic arthropods. Little new information has been gathered on soil organisms. The impact on marine and coastal ecosystems is still largely uncharted. The chronic lethality of neonicotinoids to insects and crustaceans, and the strengthened evidence that these chemicals also impair the immune system and reproduction, highlights the dangers of this particular insecticidal class (neonicotinoids and fipronil), with the potential to greatly decrease populations of arthropods in both terrestrial and aquatic environments. Sublethal effects on fish, reptiles, frogs, birds, and mammals are also reported, showing a better understanding of the mechanisms of toxicity of these insecticides in vertebrates and their deleterious impacts on growth, reproduction, and neurobehaviour of most of the species tested. This review concludes with a summary of impacts on the ecosystem services and functioning, particularly on pollination, soil biota, and aquatic invertebrate communities, thus reinforcing the previous WIA conclusions (van der Sluijs et al. 2015).
Collapse
Affiliation(s)
| | - Dave Goulson
- School of Life Sciences, University of Sussex, Brighton, BN1 9QG, UK
| | - En-Cheng Yang
- Department of Entomology, National Taiwan University, Taipei, Taiwan
| | - David Gibbons
- RSPB Centre for Conservation of Science, The Lodge, Sandy, Bedfordshire, SG19 2DL, UK
| | - Francisco Sánchez-Bayo
- School of Life and Environmental Sciences, The University of Sydney, 1 Central Avenue, Eveleigh, NSW, 2015, Australia
| | - Edward Mitchell
- Laboratory of Soil Biodiversity, University of Neuchâtel, Rue Emile-Argand 11, 2000, Neuchâtel, Switzerland
| | - Alexandre Aebi
- Laboratory of Soil Biodiversity, University of Neuchâtel, Rue Emile-Argand 11, 2000, Neuchâtel, Switzerland
- Anthropology Institute, University of Neuchâtel, Rue Saint-Nicolas 4, 2000, Neuchâtel, Switzerland
| | - Jeroen van der Sluijs
- Centre for the Study of the Sciences and the Humanities, University of Bergen, Postboks 7805, 5020, Bergen, Norway
- Department of Chemistry, University of Bergen, Postboks 7805, 5020, Bergen, Norway
- Copernicus Institute of Sustainable Development, Environmental Sciences, Utrecht University, Heidelberglaan 2, 3584 CS, Utrecht, The Netherlands
| | - Chris J K MacQuarrie
- Natural Resources Canada, Canadian Forest Service, 1219 Queen St. East, Sault Ste. Marie, ON, P6A 2E5, Canada
| | | | - Elizabeth Yim Long
- Department of Entomology, The Ohio State University, 1680 Madison Ave, Wooster, OH, 44691, USA
| | - Melanie McField
- Smithsonian Institution, 701 Seaway Drive Fort Pierce, Florida, 34949, USA
| | | | - Jean-Marc Bonmatin
- Centre National de la Recherche Scientifique (CNRS), Centre de Biophysique Moléculaire, Rue Charles Sadron, 45071, Orléans, France.
| |
Collapse
|
8
|
Iftikhar A, Hafeez F, Hafeez M, Farooq M, Asif Aziz M, Sohaib M, Naeem A, Lu Y. Sublethal effects of a juvenile hormone analog, Pyriproxyfen on demographic parameters of non-target predator, Hippodamia convergens Guerin-Meneville (Coleoptera: Coccinellidae). ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:1017-1028. [PMID: 31955283 DOI: 10.1007/s10646-020-02159-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/02/2020] [Indexed: 06/10/2023]
Abstract
Insect predators, in general, play an important role in regulating pest populations in agricultural systems, but may be negatively affected by pesticides used in pest management. Convergent lady beetle, Hippodamia convergens Guerin-Meneville (Coleoptera: Coccinellidae) is known as an important biological control agent of soft-bodied insect pests. The development of Integrated Pest Management (IPM) program against insect pests requires an assessment of the side effect of insecticides on biological control agents. In the present work, we assessed the sublethal effects of an insect growth regulator, Pyriproxyfen (juvenile hormone mimic) on a common aphidophagous beetle, H. convergens by computing its demographic parameters through age-stage, two-sex life table theory. Present results showed that sublethal (LC10 and LC30) concentrations of tested insecticide prolonged the pre-adult developmental duration while adult longevity, fecundity and fertility were reduced following treatment compared with control. However, total pre-ovipositional period (TPOP) was declined with the increasing trend of insecticide concentration. In additions, population growth parameters such as intrinsic rate of increase r, finite rate of increase λ and net reproductive rate R0 were dramatically reduced in H. convergens population when they treated with sublethal concentrations pyriproxyfen. Therefore, the results obtained through this study reflected that pyriproxyfen impairs the population growth parameters and could reduce the biological services provided by H. convergens. Thus, more attention should be paid to the use of this insecticide in IPM program.
Collapse
Affiliation(s)
- Ayesha Iftikhar
- Entomological Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan.
| | - Faisal Hafeez
- Entomological Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Muhammad Hafeez
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Zhejiang Academy of Agricultural Sciences, Institute of Plant Protection and Microbiology, Hangzhou, 310021, PR China.
| | - Muhammad Farooq
- School of Earth, Environment and Biological Sciences, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Muhammad Asif Aziz
- Department of Entomology, Pir Mehr Ali Shah, Arid Agriculture University Rawalpindi, Rawalpindi, Pakistan
| | - Muhammad Sohaib
- Institute of Agricultural Sciences, University of the Punjab, Lahore, Pakistan
| | - Afifa Naeem
- Entomological Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Yaobin Lu
- State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control, Zhejiang Academy of Agricultural Sciences, Institute of Plant Protection and Microbiology, Hangzhou, 310021, PR China
| |
Collapse
|
9
|
Wumuerhan P, Yuntao J, Deying M. Effects of exposure to imidacloprid direct and poisoned cotton aphids Aphis gossypii on ladybird Hippodamia variegata feeding behavior. JOURNAL OF PESTICIDE SCIENCE 2020; 45:24-28. [PMID: 32110160 PMCID: PMC7024745 DOI: 10.1584/jpestics.d19-022] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 11/17/2019] [Indexed: 05/19/2023]
Abstract
Imidacloprid is a pesticide used to control aphid infestations of cotton plants. However, poisoned aphids also serve as food for the ladybird natural predator Hippodamia variegata. We investigated whether imidacloprid-treated eggs, pupae, and adults of H. variegata and poisoned aphids altered ladybird predatory behavior. Laboratory bioassay results demonstrated that 0.72 g/L imidacloprid was lethal to ladybirds. Imidacloprid significantly reduced the hatching and emergence rates of H. variegata, and these effects were time and dose dependent. Predation was most adversely affected when the ladybirds directly consumed poisoned aphids and less so when directly exposed to the insecticide at sublethal concentrations. Imidacloprid use in cotton fields should be restricted to the initial stages of aphid infestation to avoid the period when adult ladybirds are present.
Collapse
Affiliation(s)
- Patima Wumuerhan
- College of Agronomy, Xinjiang Agricultural University, Key Laboratory of the Pest Monitoring and Safety Control of Crops and Forests, Urumqi 830052, China
| | - Jiang Yuntao
- College of Agronomy, Xinjiang Agricultural University, Key Laboratory of the Pest Monitoring and Safety Control of Crops and Forests, Urumqi 830052, China
| | - Ma Deying
- College of Agronomy, Xinjiang Agricultural University, Key Laboratory of the Pest Monitoring and Safety Control of Crops and Forests, Urumqi 830052, China
| |
Collapse
|
10
|
Bruus M, Rasmussen JJ, Strandberg M, Strandberg B, Sørensen PB, Larsen SE, Kjær C, Lorenz S, Wiberg-Larsen P. Terrestrial adult stages of freshwater insects are sensitive to insecticides. CHEMOSPHERE 2020; 239:124799. [PMID: 31518926 DOI: 10.1016/j.chemosphere.2019.124799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/03/2019] [Accepted: 09/05/2019] [Indexed: 06/10/2023]
Abstract
Terrestrial adult stages of freshwater insects may be exposed to pesticides by wind drift, over-spray, contact or feeding. However, studies addressing insecticide effects on freshwater invertebrates focus primarily on the impact of pesticides reaching the streams and potentially harming the aquatic juvenile stages. This is also reflected in the current risk assessment procedures, which do not include testing of adult freshwater insects. In order to assess the potential impact of insecticides on adult stages of freshwater insects, we exposed six common species to the insecticides Karate (lambda-cyhalothrin) and Confidor (imidacloprid). Dose-response relations were established, and LD50 estimates were compared to those of the honey bee, Apis mellifera L. (Hymenoptera: Apidae), which is the standard terrestrial test insect when pesticides are evaluated prior to commercial release. Generally, the tested species were more sensitive to the studied insecticides than the honey bee. In order to examine whether the sensitivity of adult stages of freshwater insects corresponds with the sensitivity of the juvenile stages of the same species, the ranking of the two life stages with respect to the toxicity of Karate was compared, revealing some correspondence, but also some dissimilarities. Our results strongly indicate that terrestrial adult stages of aquatic insects are not adequately protected by current risk assessment procedures.
Collapse
Affiliation(s)
- Marianne Bruus
- Aarhus University, Department of Bioscience, Vejlsøvej 25, DK-8600, Silkeborg, Denmark.
| | - Jes Jessen Rasmussen
- Aarhus University, Department of Bioscience, Vejlsøvej 25, DK-8600, Silkeborg, Denmark.
| | - Morten Strandberg
- Aarhus University, Department of Bioscience, Vejlsøvej 25, DK-8600, Silkeborg, Denmark.
| | - Beate Strandberg
- Aarhus University, Department of Bioscience, Vejlsøvej 25, DK-8600, Silkeborg, Denmark.
| | - Peter Borgen Sørensen
- Aarhus University, Department of Bioscience, Vejlsøvej 25, DK-8600, Silkeborg, Denmark.
| | - Søren Erik Larsen
- Aarhus University, Department of Bioscience, Vejlsøvej 25, DK-8600, Silkeborg, Denmark.
| | - Christian Kjær
- Aarhus University, Department of Bioscience, Vejlsøvej 25, DK-8600, Silkeborg, Denmark.
| | - Stefan Lorenz
- Julius Kühn-Institut, Königin-Luise-Str. 19, D-14195, Berlin, Germany.
| | - Peter Wiberg-Larsen
- Aarhus University, Department of Bioscience, Vejlsøvej 25, DK-8600, Silkeborg, Denmark.
| |
Collapse
|
11
|
Skouras PJ, Brokaki M, Stathas GJ, Demopoulos V, Louloudakis G, Margaritopoulos JT. Lethal and sub-lethal effects of imidacloprid on the aphidophagous coccinellid hippodamia variegata. CHEMOSPHERE 2019; 229:392-400. [PMID: 31082706 DOI: 10.1016/j.chemosphere.2019.05.037] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 05/03/2019] [Accepted: 05/04/2019] [Indexed: 06/09/2023]
Abstract
Hippodamia variegata is one of the most abundant ladybird species in Greece, preying on several aphid species and other arthropods, of which many are pests of cultivated plants. Imidacloprid, a neonicotinoid insecticide, is commonly used for controlling sucking insects; at the same time, however, it can cause various sub-lethal effects on non-target organisms. The development of IPM programs against pests requires an evaluation of the side effects of insecticides on natural enemies. We evaluated the sub-lethal effects of imidacloprid on H. variegata. Our results demonstrate that imidacloprid at a LC10 (3.92 mg (a.i.) L-1 and LC30 (8.69 mg (a.i.) L-1) decreased adult longevity and survival rate. In addition, demographic parameters, such as the intrinsic rate of increase (r), finite rate of increase (λ) and net reproductive rate (R0), were reduced when exposed to sub-lethal concentrations of imidacloprid. These results demonstrate a negative influence of imidacloprid at sub-lethal concentrations on H. variegata which could reduce biological control services provided by this predator.
Collapse
Affiliation(s)
- Panagiotis J Skouras
- Laboratory of Agricultural Entomology and Zoology, Department of Agricultural Technology, Technological Educational Institute of Peloponnese, 24 100, Antikalamos, Kalamata, Greece.
| | - Marina Brokaki
- Laboratory of Agricultural Entomology and Zoology, Department of Agricultural Technology, Technological Educational Institute of Peloponnese, 24 100, Antikalamos, Kalamata, Greece
| | - George J Stathas
- Laboratory of Agricultural Entomology and Zoology, Department of Agricultural Technology, Technological Educational Institute of Peloponnese, 24 100, Antikalamos, Kalamata, Greece
| | - Vasilios Demopoulos
- Laboratory of Plant Protection Products, Department of Agricultural Technology, Technological Educational Institute of Peloponnese, 24 100, Antikalamos, Kalamata, Greece
| | - Giannis Louloudakis
- Laboratory of Agricultural Entomology and Zoology, Department of Agricultural Technology, Technological Educational Institute of Peloponnese, 24 100, Antikalamos, Kalamata, Greece
| | - John T Margaritopoulos
- Department of Plant Protection, Institute of Industrial and Fodder Crops, Hellenic Agricultural Organization "DEMETER", NAGREF, Volos, Greece
| |
Collapse
|
12
|
He F, Sun S, Tan H, Sun X, Qin C, Ji S, Li X, Zhang J, Jiang X. Chlorantraniliprole against the black cutworm Agrotis ipsilon (Lepidoptera: Noctuidae): From biochemical/physiological to demographic responses. Sci Rep 2019; 9:10328. [PMID: 31316142 PMCID: PMC6637144 DOI: 10.1038/s41598-019-46915-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 07/01/2019] [Indexed: 11/09/2022] Open
Abstract
Agrotis ipsilon (Lepidoptera: Noctuidae) is a major underground pest that damages many agricultural crops in China and other countries. A diet-incorporation-based bioassay was conducted to evaluate the sublethal effects of the novel anthranilic diamide chlorantraniliprole on the nutritional physiology, enzymatic properties and population parameters of this cutworm. Chlorantraniliprole exhibited signs of active toxicity against third instar larvae of A. ipsilon, and the LC50 was 0.187 μg.g-1 of artificial diet after treatment for 72 h. The development time of the larval, pupal and adult stages was significantly affected after chlorantraniliprole exposure, compared to the control treatment. Relative to the control treatment, chlorantraniliprole decreased pupal and adult emergence rates, fecundity and fertility and increased the proportions of developmental deformities, the adult preoviposition period (APOP) and the total preoviposition period (TPOP). Furthermore, compared to those treated with the control, A. ipsilon larvae treated with low doses of chlorantraniliprole decreased food utilization and nutrient content (protein, lipid, carbohydrate, trehalose), showed lower pupal weights and growth rates. Compared with the control treatment, chlorantraniliprole significantly reduced digestive enzyme activities and observably increased detoxifying and protective enzyme activities and hormone titers. Importantly, these chlorantraniliprole-induced changes affected life table parameters of the cutworm. These results suggest that chlorantraniliprole at low concentrations can impair A. ipsilon development duration, normal food consumption and digestion process, enzymatic properties, hormone levels, fecundity and population levels. Chlorantraniliprole exhibit the potential to be exploited as a control strategy for this cutworm.
Collapse
Affiliation(s)
- Falin He
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Shiang Sun
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Haili Tan
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Xiao Sun
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Chao Qin
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Shoumin Ji
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Xiangdong Li
- Shandong Provincial Key Laboratory of Agricultural Microbiology, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Jiwang Zhang
- State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Xingyin Jiang
- Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, 271018, China.
- Research Center of Pesticide Environmental Toxicology, Shandong Agricultural University, Tai'an, Shandong, 271018, China.
| |
Collapse
|
13
|
Taravati S, Mannion C, McKenzie C, Osborne L. Lethal and Sublethal Effects of Selected Systemic and Contact Insecticides on Nephaspis oculata (Coleoptera: Coccinellidae), in a Tri-Trophic System. JOURNAL OF ECONOMIC ENTOMOLOGY 2019; 112:543-548. [PMID: 30496441 DOI: 10.1093/jee/toy364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Indexed: 06/09/2023]
Abstract
Nephaspis oculata (Blatchley, 1917) is a whitefly predator which has been reported feeding on several whitefly species. In South Florida, it attacks rugose spiraling whitefly, an invasive pest of urban trees which was first reported in the United States in 2009. The management of rugose spiraling whitefly relies heavily on the use of insecticides which may negatively impact biological control agents. We studied the effect of bifenthrin (spray) and imidacloprid (drench) application on survival, fecundity, and behavior of N. oculata in the laboratory. Adult beetles survived significantly longer in control and systemic imidacloprid compared to bifenthrin treatment, but there was no significant difference between control and systemic imidacloprid applications. However, the fecundity of beetles in the imidacloprid treatment was significantly lower than the control. There was no significant difference between the survival of beetles in bifenthrin and control treatments 3 mo post application. Beetles avoided bifenthrin-treated leaves but did not avoid systemic imidacloprid-treated in a no-choice test. Also, beetles' feeding rate on bifenthrin-treated rugose spiraling whitefly nymphs was significantly lower in a no-choice test. In the choice test, there was a significant difference in feeding rates on whiteflies between choices of bifenthrin/control but no significant difference in the control/control or in imidacloprid/control treatments. The results from this study shows that while systemic imidacloprid has sublethal effects on N. oculata, it does not significantly affect mortality of adult beetles in the tri-trophic system tested. Therefore, using systemic imidacloprid and N. oculata for controlling rugose spiraling whitefly might be compatible or at least not significantly incompatible.
Collapse
Affiliation(s)
- Siavash Taravati
- University of California Cooperative Extension, University of California - Agriculture and Natural Resources, Alhambra, CA
| | - Catharine Mannion
- Tropical Research and Education Center, University of Florida, Homestead, FL
| | - Cindy McKenzie
- ARS, Horticultural Research Laboratory, USDA, Fort Pierce, FL
| | - Lance Osborne
- Mid-Florida Research and Education Center, University of Florida, Apopka, FL
| |
Collapse
|
14
|
Jiang J, Ma D, Zhang Z, Yu C, Liu F, Mu W. Favorable compatibility of nitenpyram with the aphid predator, Coccinella septempunctata L. (Coleoptera: Coccinellidae). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:27393-27401. [PMID: 30039483 DOI: 10.1007/s11356-018-2785-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 07/17/2018] [Indexed: 06/08/2023]
Abstract
The increasing demand for lessening the chemical input in agricultural ecosystems requires an efficient combination of pesticides and biological controls. Thus, fully understanding the compatibility of pesticides and beneficial arthropod predators is helpful and essential. In this study, we evaluated the influence of nitenpyram on both larvae and adults of Coccinella septempunctata using exposure doses of 10, 25, 50, 100, and 150% of the maximum recommended field rate (MRFR) (3, 7.5, 15, 30, and 45 g a.i. ha-1, respectively) and a blank control based on a preliminary acute 72-h toxicity experiment. In the long-term test, the LR50 (application rate causing the mortality of 50% of the individuals) of nitenpyram for C. septempunctata decreased from 73.43 to 63.0 g a.i. ha-1, while the HQ (hazard quotient) values remained below the threshold value of 2. Nitenpyram did not significantly influence the survival rate, fecundity, pupation, or adult emergence at 150% of the label rate (lowest LR50 = 63.0 g a.i. ha-1), and its demonstrated NOER (No Observed Effect application Rates) values are all above 45 g a.i. ha-1. Likewise, the total developmental time and egg hatchability were not significantly affected at 100% of the label rate (NOER = 30 g a.i. ha-1). The assessment of the total effect (E) suggested that nitenpyram could be classified as harmless to C. septempunctata below/at a dose of 30 g a.i. ha-1. The lowest LR50 and NOER values were both above the maximum recommended field application rate for nitenpyram (30 g a.i. ha-1) for controlling aphids in China. All results indicated that the on-label use of nitenpyram is compatible with the natural enemy C. septempunctata in agricultural ecosystems.
Collapse
Affiliation(s)
- Jiangong Jiang
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Dicheng Ma
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Zhengqun Zhang
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Caihong Yu
- College of Chemistry and Environment Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, Shandong, China
| | - Feng Liu
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China
| | - Wei Mu
- College of Plant Protection, Key Laboratory of Pesticide Toxicology & Application Technique, Shandong Agricultural University, Tai'an, 271018, Shandong, People's Republic of China.
| |
Collapse
|
15
|
Lee YS, Jang MJ, Lee HA, Lee JH. Toxicity of Pesticides to Mycophagous Ladybrid, Illeis koebelei Timberlake (Coleoptera: Coccinellidae: Halyziini). ACTA ACUST UNITED AC 2017. [DOI: 10.7585/kjps.2017.21.4.364] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
16
|
Ziaei Madbouni MA, Samih MA, Qureshi JA, Biondi A, Namvar P. Compatibility of insecticides and fungicides with the zoophytophagous mirid predator Nesidiocoris tenuis. PLoS One 2017; 12:e0187439. [PMID: 29095873 PMCID: PMC5667899 DOI: 10.1371/journal.pone.0187439] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 10/19/2017] [Indexed: 11/19/2022] Open
Abstract
Nesidiocoris tenuis (Reuter) (Hemiptera: Miridae) is an effective predator of multiple pests of vegetable crops, such as thrips, mites, aphids, whiteflies, leafminers. It is mass-reared and released for augmentative biocontrol programs mainly aimed at controlling whiteflies and Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in greenhouses and open field. We evaluated the lethal and sublethal toxicity upon N. tenuis adults of label doses of three insecticides (pyriproxyfen, spirotetramat, cypermethrin) and seven fungicides (benomyl, chlorothalonil, copper oxychloride, cyazofamid, fluopicolide + propamocarb hydrochloride (FPH), penconazol, trifloxystrobin) commonly used in various crops. Two exposure routes were tested: (i) contact with dry residues of insecticides or fungicides on tomato sprouts and (ii) multiple exposure to these chemicals via topical sprays on adults which foraged on treated sprouts; and fed on treated eggs of Ephestia kuehniella (Zeller) (Lepidoptera: Pyralidae) simultaneously. Mortality and reproductive capacity were investigated as indicators of lethal and sublethal effects on N. tenius. The tested insecticides and fungicides were all classified as harmless when predator was exposed only to the dry residues of each. However, the multiple exposure to either cypermethrin, benomyl, chlorothalonil, copper oxychloride or trifloxystrobin caused significant mortality of N. tenuis adults. Cypermethrin also significantly reduced its reproductive capacity. Interestingly, N. tenuis produced a higher number of progeny when exposed to fungicides penconazol and FPH in both exposure scenarios. Overall, findings suggest that the two insecticides, pyriproxyfen and spirotetramat but not cypermethrin, and all tested fungicides can be considered compatible with N. tenuis.
Collapse
Affiliation(s)
| | - Mohammad Amin Samih
- Department of Plant Protection, College of Agriculture, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
| | - Jawwad A. Qureshi
- University of Florida/IFAS, Department of Entomology and Nematology, Indian River Research and Education Center, Fort Pierce, FL, United States of America
- * E-mail:
| | - Antonio Biondi
- University of Catania, Department of Agriculture, Food and Environment, Via Santa Sofia, Catania, Italy
| | - Peyman Namvar
- Plant Protection Research Department, South Kerman Agricultural and Natural Resources Research and Education Center, AREEO, Jiroft, Iran
| |
Collapse
|
17
|
Xiao D, Zhao J, Guo X, Chen H, Qu M, Zhai W, Desneux N, Biondi A, Zhang F, Wang S. Sublethal effects of imidacloprid on the predatory seven-spot ladybird beetle Coccinella septempunctata. ECOTOXICOLOGY (LONDON, ENGLAND) 2016; 25:1782-1793. [PMID: 27670666 DOI: 10.1007/s10646-016-1721-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/30/2016] [Indexed: 06/06/2023]
Abstract
The seven-spot ladybird beetle, Coccinella septempunctata, is a major natural enemy of aphids in the field and in greenhouses in China and is part of integrated pest management (IPM). Imidacloprid, a highly efficient insecticide that not only kills aphids at lethal concentrations, but also can cause various sublethal effects in nontarget organisms. To strengthen IPM and its sustainability, it is important assessing possible side effects on natural enemies. When the effects of sublethal concentrations (LC5 and 10%LC5) of imidacloprid on C. septempunctata were evaluated, the adult longevity was shortened by 23.97 and 28.68 %, and the fecundity reduced by 52.81 and 56.09 % compared to control population. In the F1 generation (i.e., the progeny of the exposed individuals), the juvenile development was slower by 1.44 days and 0.66 days, and the oviposition period was shortened by 10 and 13 days, respectively. The fecundity of the F1 generation decreased by 17.88, 44.03 and 51.69 % when exposed to 1%LC5, 10%LC5, and LC5, respectively. The results of demographical growth estimates showed that the intrinsic rate of increase (r m ) and net reproductive rate (R 0 ) were lower in C. septempunctata populations that had been exposed to sublethal concentrations of imidacloprid. The results emphasize the importance of assessing side effects of low imidacloprid concentrations on such predator species, even at the transgenerational level.
Collapse
Affiliation(s)
- Da Xiao
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forest Science, Beijing, 100097, China
| | - Jing Zhao
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forest Science, Beijing, 100097, China
| | - Xiaojun Guo
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forest Science, Beijing, 100097, China
| | - Hongying Chen
- Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing, 100125, China
| | - Mengmeng Qu
- Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing, 100125, China
| | - Weigang Zhai
- Institute for the Control of Agrochemicals, Ministry of Agriculture, Beijing, 100125, China
| | - Nicolas Desneux
- INRA (French National Institute for Agricultural Research), UMR 1355-7254 Institut Sophia Agrobiotech, Univ. Nice Sophia Antipolis, CNRS, 400 Route des Chappes, Sophia-Antipolis, 06903, France
| | - Antonio Biondi
- University of Catania, Department of Agriculture, Food and Environment, via Santa Sofia 100, Catania, 95123, Italy
| | - Fan Zhang
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forest Science, Beijing, 100097, China
| | - Su Wang
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forest Science, Beijing, 100097, China.
| |
Collapse
|
18
|
Snyder D, Cernicchiaro N, Allan SA, Cohnstaedt LW. Insecticidal sugar baits for adult biting midges. MEDICAL AND VETERINARY ENTOMOLOGY 2016; 30:209-217. [PMID: 26789534 DOI: 10.1111/mve.12158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 09/08/2015] [Accepted: 10/09/2015] [Indexed: 06/05/2023]
Abstract
The mixing of an insecticide with sugar solution creates an oral toxin or insecticidal sugar bait (ISB) useful for reducing adult insect populations. The ability of ISBs to kill the biting midge Culicoides sonorensis Wirth and Jones (Diptera: Ceratopogonidae), a vector of bluetongue virus, epizootic hemorrhagic disease and vesicular stomatitis viruses, was tested. The commercial insecticide formulations (percentage active ingredient) tested included bifenthrin, cyfluthrin, deltamethrin, permethrin, dinotefuran, imidacloprid, thiamethoxam and spinosad. Mortality rates were determined for various concentrations of commercial formulations (0.01, 0.05, 0.1, 1, 2 and 3%) and observed at 1, 4, 10 and 24 h post-exposure to the ISB. In the first set of assays, laboratory-reared midges were fed sugar ad libitum and then exposed to insecticide-treated sugar solutions to measure mortality. The second assay assessed competitive feeding: midges were provided with a control sugar solution (10% sucrose) in one vial, and a sugar and insecticide solution in another. Pyrethroid treatments resulted in the greatest mortality in the first hour at the lowest concentrations and spinosad consumption resulted in the least mortality. Biting midges were not deterred from feeding on the 1% ISB solutions despite the presence of an insecticide-free alternative source of sugar.
Collapse
Affiliation(s)
- D Snyder
- Department of Entomology, Kansas State University, Manhattan, KS, U.S.A
| | - N Cernicchiaro
- Department of Diagnostic Medicine and Pathobiology, Kansas State University, Manhattan, KS, U.S.A
| | - S A Allan
- Center for Medical, Agricultural and Veterinary Entomology, U.S. Department of Agriculture/Agriculture Research Service (USDA/ARS), Gainesville, FL, U.S.A
| | - L W Cohnstaedt
- Center for Grain and Animal Health Research, USDA/ARS, Manhattan, KS, U.S.A
| |
Collapse
|
19
|
Tang LD, Qiu BL, Cuthbertson AGS, Ren SX. Status of insecticide resistance and selection for imidacloprid resistance in the ladybird beetle Propylaea japonica (Thunberg). PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2015; 123:87-92. [PMID: 26267056 DOI: 10.1016/j.pestbp.2015.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 03/19/2015] [Accepted: 03/19/2015] [Indexed: 06/04/2023]
Abstract
Field populations or strains of Propylaea japonica collected from four places in southern China (Guangzhou, Nanning, Guilin, and Yuxi) were tested for susceptibility to four insecticides (abamectin, imidacloprid, beta-cypermethrin, and chlorpyrifos) by the Petri-dish Potter tower method and compared with an insecticide-susceptible strain. Concentrations that proved lethal for 50% of the tested individuals (LC50) were estimated by probit analysis, and resistance factors (RF) were calculated at the LC50 level, which ranged from 1.6 to 10.1, depending on the insecticide. In addition, the Guangzhou strain formed the original population for imidacloprid resistance selection. After selection for 20 generations, the resistance had increased 39.3-fold. Fitness analysis in terms of such traits as fecundity, days to maturity, and survival showed that although both resistant and susceptible populations developed at comparable rates, the resistant strain was less fecund (it laid fewer eggs and a smaller proportion of those eggs hatched and resulted in adults), attaining a fitness score of only 0.56 relative to the susceptible strain. These observations suggest that it is possible to detect strains of P. japonica highly resistant to insecticides under laboratory conditions, and that resistance to imidacloprid carries considerable fitness costs to P. japonica. The study served to expand our understanding of the impact of imidacloprid resistance on biological parameters of P. japonica in more detail and to facilitate the deployment of natural enemies resistant to insecticides in integrated pest management.
Collapse
Affiliation(s)
- Liang-De Tang
- Engineering Research Center of Biological Control, Ministry of Education, South China Agricultural University, Guangzhou 510642, China; Environment and Plant Protection Institute, Chinese Academy of Tropical Agriculture Science, Haikou 571101, China
| | - Bao-Li Qiu
- Engineering Research Center of Biological Control, Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | | | - Shun-Xiang Ren
- Engineering Research Center of Biological Control, Ministry of Education, South China Agricultural University, Guangzhou 510642, China.
| |
Collapse
|
20
|
Torres JB, Rodrigues ARS, Barros EM, Santos DS. Lambda-Cyhalothrin Resistance in the Lady Beetle Eriopis connexa (Coleoptera: Coccinellidae) Confers Tolerance to Other Pyrethroids. JOURNAL OF ECONOMIC ENTOMOLOGY 2015; 108:60-68. [PMID: 26470104 DOI: 10.1093/jee/tou035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 11/05/2014] [Indexed: 06/05/2023]
Abstract
Pyrethroid insecticides are widely recommended to control insect defoliators but lack efficacy against most aphid species. Thus, conserving aphid predators such as the lady beetle Eriopis connexa (Germar) is important to pest management in crop ecosystems that require pyrethroid sprays. In a greenhouse, early fourth-instar larvae and 5-day-old adults from susceptible (S) and resistant (R) E. connexa populations were caged on lambda-cyhalothrin-treated cotton plants, after which survival and egg production (for those caged at adult stage) were assessed. In the laboratory, similar groups were subjected to dried residues and topical treatment with one of eight pyrethroids (alpha-cypermethrin, bifenthrin, deltamethrin, esfenvalerate, fenpropathrin, permethrin, zeta-cypermethrin, and lambda-cyhalothrin), the organophosphate methidathion, or water and wetting agent. After caging on treated cotton terminals, 66% of the R-population larvae survived to adulthood, compared with 2% of those from the S-population. At 12 d after caging at adult stage under the same conditions, 64% of the females from the R-population survived and laid eggs, compared with 100% mortality and no oviposition for the S-females. In trials involving dried insecticide residues, gain in survival based on the survival difference (percentage for R-population minus percentage for S-population) across all tested pyrethroids varied from 3 to 63% for larvae and from 3 to 70% for adults. In trials involving topical sprays of the tested pyrethroids, survival differences ranged from 36 to 96% for larvae and from 21 to 82% for adults. Fenpropathrin and bifenthrin were the least and most toxic, respectively.
Collapse
Affiliation(s)
- J B Torres
- Departamento de Agronomia - Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, CEP 52171-900, Recife, Pernambuco, Brazil.
| | - A R S Rodrigues
- Departamento de Agronomia - Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, CEP 52171-900, Recife, Pernambuco, Brazil
| | - E M Barros
- Departamento de Agronomia - Entomologia, Universidade Federal Rural de Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, CEP 52171-900, Recife, Pernambuco, Brazil
| | - D S Santos
- Universidade Federal de Alagoas, Centro de Ciências Agrárias, Campus Delza Gitaí, BR101-Norte, Km 85, CEP 57100-000, Rio Largo, Alagoas, Brazil
| |
Collapse
|
21
|
Yu C, Lin R, Fu M, Zhou Y, Zong F, Jiang H, Lv N, Piao X, Zhang J, Liu Y, Brock TCM. Impact of imidacloprid on life-cycle development of Coccinella septempunctata in laboratory microcosms. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 110:168-173. [PMID: 25240465 DOI: 10.1016/j.ecoenv.2014.08.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 08/17/2014] [Accepted: 08/19/2014] [Indexed: 06/03/2023]
Abstract
Long-term effects of a single application of imidacloprid on ladybird beetle, Coccinella septempunctata L., were studied in indoor laboratory microcosms, starting with the 2nd instar larvae of C. septempunctata but covering the full life cycle. The microcosms comprised enclosures containing a pot with soil planted with broad bean plants and black bean aphid, Aphis craccivora Koch, as food. Exposure doses (0.85-13.66g a.i. ha(-1)) in the long-term microcosm experiment were based on a preliminary short-term (72h) toxicity test with 2nd instar larvae. The measurement endpoints used to calculate NOERs (No Observed Effect application Rates) included development time, hatching, pupation, adult emergence, survival and number of eggs produced. Furthermore, for these endpoints ER50 (application rate causing 50 percent effect) and LR50 (application rate causing 50 percent mortality) values were calculated when possible. The single imidacloprid application affected survival (lowest LR50 4.07g a.i. ha(-1); NOER 3.42g a.i. ha(-1)), egg production (ER50 26.63g a.i. ha(-1)) and egg hatching (NOER 6.83g a.i. ha(-1)). Statistically significant treatment-related effects on the whole development duration, pupation and adult emergence could not be demonstrated (NOER≥13.66g a.i. ha(-1)). The lowest L(E)R50 values and NOERs derived from the laboratory microcosm test with C. septempunctata are lower than the reported field application rates of imidacloprid (15-60g a.i. ha(-1)) in cotton cultivation in China, suggesting potential risks to beneficial arthropods.
Collapse
Affiliation(s)
- Caihong Yu
- College of Chemistry and Environment Engineering, China University of Mining and Technology (Beijing), 100083 Beijing, China
| | - Ronghua Lin
- Institute for the Control of Agrochemicals, Ministry of Agriculture, 100125 Beijing, China.
| | - Maoran Fu
- College of Chemistry and Environment Engineering, China University of Mining and Technology (Beijing), 100083 Beijing, China
| | - Yanming Zhou
- Institute for the Control of Agrochemicals, Ministry of Agriculture, 100125 Beijing, China
| | - Fulin Zong
- Institute for the Control of Agrochemicals, Ministry of Agriculture, 100125 Beijing, China
| | - Hui Jiang
- Institute for the Control of Agrochemicals, Ministry of Agriculture, 100125 Beijing, China
| | - Ning Lv
- Institute for the Control of Agrochemicals, Ministry of Agriculture, 100125 Beijing, China
| | - Xiuying Piao
- Institute for the Control of Agrochemicals, Ministry of Agriculture, 100125 Beijing, China
| | - Jia Zhang
- Institute for the Control of Agrochemicals, Ministry of Agriculture, 100125 Beijing, China
| | - Yongquan Liu
- Institute for the Control of Agrochemicals, Ministry of Agriculture, 100125 Beijing, China
| | - Theo C M Brock
- Alterra, Wageningen University and Research Centre, PO Box 47, 6700 AA, Wageningen, The Netherlands
| |
Collapse
|
22
|
Tang LD, Wang XM, Jin FL, Qiu BL, Wu JH, Ren SX. De novo sequencing-based transcriptome and digital gene expression analysis reveals insecticide resistance-relevant genes in Propylaea japonica (Thunberg) (Coleoptea: Coccinellidae). PLoS One 2014; 9:e100946. [PMID: 24959827 PMCID: PMC4069172 DOI: 10.1371/journal.pone.0100946] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Accepted: 06/02/2014] [Indexed: 12/17/2022] Open
Abstract
The ladybird Propylaea japonica (Thunberg) is one of most important natural enemies of aphids in China. This species is threatened by the extensive use of insecticides but genomics-based information on the molecular mechanisms underlying insecticide resistance is limited. Hence, we analyzed the transcriptome and expression profile data of P. japonica in order to gain a deeper understanding of insecticide resistance in ladybirds. We performed de novo assembly of a transcriptome using Illumina's Solexa sequencing technology and short reads. A total of 27,243,552 reads were generated. These were assembled into 81,458 contigs and 33,647 unigenes (6,862 clusters and 26,785 singletons). Of the unigenes, 23,965 (71.22%) have putative homologues in the non-redundant (nr) protein database from NCBI, using BLASTX, with a cut-off E-value of 10−5. We examined COG, GO and KEGG annotations to better understand the functions of these unigenes. Digital gene expression (DGE) libraries showed differences in gene expression profiles between two insecticide resistant strains. When compared with an insecticide susceptible profile, a total of 4,692 genes were significantly up- or down- regulated in a moderately resistant strain. Among these genes, 125 putative insecticide resistance genes were identified. To confirm the DGE results, 16 selected genes were validated using quantitative real time PCR (qRT-PCR). This study is the first to report genetic information on P. japonica and has greatly enriched the sequence data for ladybirds. The large number of gene sequences produced from the transcriptome and DGE sequencing will greatly improve our understanding of this important insect, at the molecular level, and could contribute to the in-depth research into insecticide resistance mechanisms.
Collapse
Affiliation(s)
- Liang-De Tang
- Engineering Research Center of Biological Control, Ministry of Education, College of Natural Resource and Environment, South China Agricultural University, Guangzhou, China
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agriculture, Haikou, China
| | - Xing-Min Wang
- Engineering Research Center of Biological Control, Ministry of Education, College of Natural Resource and Environment, South China Agricultural University, Guangzhou, China
| | - Feng-Liang Jin
- Engineering Research Center of Biological Control, Ministry of Education, College of Natural Resource and Environment, South China Agricultural University, Guangzhou, China
| | - Bao-Li Qiu
- Engineering Research Center of Biological Control, Ministry of Education, College of Natural Resource and Environment, South China Agricultural University, Guangzhou, China
| | - Jian-Hui Wu
- Engineering Research Center of Biological Control, Ministry of Education, College of Natural Resource and Environment, South China Agricultural University, Guangzhou, China
| | - Shun-Xiang Ren
- Engineering Research Center of Biological Control, Ministry of Education, College of Natural Resource and Environment, South China Agricultural University, Guangzhou, China
- * E-mail:
| |
Collapse
|
23
|
Amirzade N, Izadi H, Jalali MA, Zohdi H. Evaluation of three neonicotinoid insecticides against the common pistachio psylla, Agonoscena pistaciae, and its natural enemies. JOURNAL OF INSECT SCIENCE (ONLINE) 2014; 14:35. [PMID: 25373182 PMCID: PMC4206228 DOI: 10.1093/jis/14.1.35] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
The common pistachio psylla, Agonoscena pistaciae Burckhardt and Lauterer (Hemiptera: Psyllidae), is a key pest in pistachio orchards in Iran. Chemical control is a common method to manage this pest. Compatibility between natural enemies and pesticides is a primary concern in programs of integrated pest management of the psyllid pest. In this research, susceptibility of fifth instar nymphs of Ag. pistaciae and fourth instar larvae of the two most common predators of this pest, Adalia bipunctata L. (Coleoptera: Coccinellidae) and Coccinella undecimpunctata aegyptiaca Reiche, to acetamiprid, thiamethoxam, and imidacloprid was investigated. Probit analysis of concentration-mortality data was conducted to estimate the LC50 value. The results showed that thiamethoxam with an LC50 value of 56.35 mg a.i./L was more toxic to fifth instar nymphs of Ag. pistaciae in comparison to acetamiprid (60.75 mg a.i/L) and imidacloprid (138.21 mg a.i/L) . Imidacloprid with an LC50 value of 218.89 mg a.i/L compared to acetamiprid (222.65 mg a.i/L) and thiamethoxam (232.37 mg a.i/L) had more lethal effects on fourth instar larvae of Ad. bipunctata. However, on the fourth instar larvae of C. undecimpunctata aegyptica, acetamiprid with an LC50 value of 263.44 mg a.i/L was more toxic than thiamethoxam (296.62 mg a.i/L) and imidacloprid (447.82 mg a.i/L). The laboratory findings showed that the three tested insecticides were more toxic to the common pistachio psylla than to its natural predators. Thiamethoxam was the most toxic against Ag. pistaciae. However, its toxicity to the predators was lower than imidacloprid and acetamiprid. This result suggests that thiamethoxam is the best insecticide for control of Ag. pistaciae in combination with predatory lady beetles.
Collapse
Affiliation(s)
- Najmeh Amirzade
- Department of Plant Protection, Vali-e-Asr University of Rafsanjan, Iran
| | - Hamzeh Izadi
- Department of Plant Protection, Vali-e-Asr University of Rafsanjan, Iran
| | | | - Hadi Zohdi
- Plant Pests and Diseases Research Center, Kerman, Iran
| |
Collapse
|
24
|
Khan HAA, Shad SA, Akram W. Combination of phagostimulant and visual lure as an effective tool in designing house fly toxic baits: a laboratory evaluation. PLoS One 2013; 8:e77225. [PMID: 24086770 PMCID: PMC3782437 DOI: 10.1371/journal.pone.0077225] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 09/02/2013] [Indexed: 11/21/2022] Open
Abstract
House flies (Diptera: Muscidae), potential vectors of a variety of pathogens, characteristically search and feed on sugar sources just after emergence for their survival. Phagostimulants like sugars, and visual characteristics of feeding materials play an important role in foraging success in house flies. Therefore, development of toxic baits by using the combination of phagostimulant and visual lure may prove effective in localized control of house flies. In the present study, visual attraction of house flies to different fabric colors was studied in choice and no choice experiments. Dark blue was the most preferred color in both experiments. In toxicity experiments, insecticide solutions were prepared in 20% sugar solution. Dark blue fabric strips were prepared by moistening with 20% sugar water solution containing median lethal concentrations of one of the four insecticides viz., fipronil, Imidacloprid, indoxacarb and Spinosad. The fabric strips treated with fipronil and Imidacloprid took minimum time (7.66 and 7.81 h, respectively) to cause 50% mortality, while those treated with Spinosad and indoxacarb took relatively more time (13.62 and 17.91 h, respectively) to cause 50% mortality. In conclusion, the combination of phagostimulant and visual lure could be used in designing toxic baits for house flies.
Collapse
Affiliation(s)
- Hafiz Azhar Ali Khan
- Institute of Agricultural Sciences, University of the Punjab, Lahore, Pakistan
- Department of Entomology, Bahauddin Zakariya University, Multan, Pakistan
- * E-mail:
| | - Sarfraz Ali Shad
- Department of Entomology, Bahauddin Zakariya University, Multan, Pakistan
| | - Waseem Akram
- Department of Entomology, University of Agriculture, Faisalabad, Pakistan
| |
Collapse
|
25
|
Radwan MA, Mohamed MS. Imidacloprid induced alterations in enzyme activities and energy reserves of the land snail, Helix aspersa. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2013; 95:91-97. [PMID: 23756058 DOI: 10.1016/j.ecoenv.2013.05.019] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 05/14/2013] [Accepted: 05/16/2013] [Indexed: 05/27/2023]
Abstract
The in vivo sublethal toxic effects (0.2 and 0.6 LD50) of topically applied imidacloprid on biochemical biomarkers in the land snail, Helix aspersa was examined. Biochemical perturbations were assessed by measuring the three enzymatic (Acetylcholinesterase, AChE; catalase, CAT and glutathione-S-transferase, GST) activities and three energy reserves (protein, glycogen and lipids) in the snails. Snail samples were taken from each sublethal dose and control groups at 1, 3 and 7 days after treatment. The results revealed that there were overall decrease in AChE activity as well as depletion of lipids and glycogen contents in the imidacloprid-treated snails compared to control groups. The CAT and GST activities of treated snails with the sublethal doses of imidacloprid were significantly higher than those of untreated controls along the three times of exposure. Moreover, an increase in the level of total proteins was observed in animals treated with 0.6 LD50 imidacloprid compared to control groups. The alterations in all tested biochemical perturbations were most pronounced with the 0.6 LD50 than 0.2 LD50. This study suggests that alterations of the enzyme activities and energy reserves in this species that could be useful as biomarkers of imidacloprid exposure in the evaluation of terrestrial impacts of this insecticide.
Collapse
Affiliation(s)
- M A Radwan
- Department of Pesticide Chemistry and Technology, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 21545, Egypt.
| | | |
Collapse
|
26
|
Bozsik A. Spread and occurrence of tulip tree aphid in Europe: new record of Illinoia liriodendri (Monell, 1879) (Hemiptera: Aphididae) from Hungary. ACTA ACUST UNITED AC 2012. [DOI: 10.1111/j.1365-2338.2011.02526.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
27
|
Allan SA. Susceptibility of adult mosquitoes to insecticides in aqueous sucrose baits. JOURNAL OF VECTOR ECOLOGY : JOURNAL OF THE SOCIETY FOR VECTOR ECOLOGY 2011; 36:59-67. [PMID: 21635642 DOI: 10.1111/j.1948-7134.2011.00141.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Mosquitoes characteristically feed on plant-derived carbohydrates and honeydew just after emergence and intermittently during their lives. Development of toxic baits focusing on this carbohydrate-seeking behavior may potentially contribute to localized control. In the present study, ten insecticides were fed to female Culex quinquefasciatus, Anopheles quadrimaculatus, and Aedes taeniorhynchus in a 10% sucrose solution. Active ingredients representative of five classes of insecticides (pyrethroids, phenylpyroles, pyrroles, neonicotinoids, and macrocyclic lactones) were selected for comparison with commercial formulations used to facilitate incorporation of active ingredients into aqueous sucrose solutions. Sucrose as a phagostimulant significantly enhanced mortality to toxicants. In general, the most effective active ingredients were fipronil, deltamethrin and imidacloprid, followed by spinosad, thiamethoxam, bifenthrin, permethrin, and cyfluthrin. The least effective ingredients were chlorfenapyr and ivermectin. For some of the ingredients tested, Cx. quinquefasciatus was the least susceptible species. One-day-old male Cx. quinquefasciatus were more susceptible than females; however, no differences existed between one- and seven-day-old mosquitoes. There were no differences in susceptibility between unfed and gravid ten-day-old female Cx. quinquefasciatus to bifenthrin. In conclusion, several pesticides from different classes of compounds have potential for use in development of toxic baits for mosquitoes.
Collapse
Affiliation(s)
- Sandra A Allan
- Center for Medical, Agricultural and Veterinary Entomology, USDA/ARS, 1600 SW 23rd Dr., Gainesville, FL 32608, USA
| |
Collapse
|
28
|
Arthur FH, Liu S, Zhao B, Phillips TW. Residual efficacy of pyriproxyfen and hydroprene applied to wood, metal and concrete for control of stored-product insects. PEST MANAGEMENT SCIENCE 2009; 65:791-797. [PMID: 19360716 DOI: 10.1002/ps.1756] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND Pyriproxyfen and hydroprene are insect growth regulators (IGRs) that have been evaluated to control insect pests of field crops, but there are limited reports of efficacy against stored-product insects. A laboratory study was conducted to determine residual efficacy of pyriproxyfen and hydroprene on wood, metal and concrete surfaces. Pyriproxyfen was applied to the surfaces at 1.15 and 2.3 mg active ingredient [AI] m(-2), while hydroprene was applied at the label rate of 19 mg AI m(-2). Late-instar larvae of Tribolium confusum Jacqueline DuVal, T. castaneum (Herbst), Oryzaephilus surinamenis L., Lasioderma serricorne (F.) and Plodia interpunctella (Hübner) were exposed with a food source on the treated surfaces. Residual testing was conducted at 1, 28 and 56 days post-treatment. RESULTS Hydroprene was least persistent on concrete and generally most persistent on metal. Pyriproxyfen gave greater residual persistence than hydroprene, and there was no consistent difference in efficacy among the three surfaces. Efficacy varied among the five insect species, but generally P. interpunctella was the most tolerant species to both IGRs. CONCLUSIONS Pyriproxyfen gave effective residual control of primary stored-product insect species by inhibiting adult emergence of exposed larvae. Results show that pyriproxyfen can be a useful addition for pest management programs in mills, warehouses and food storage facilities.
Collapse
Affiliation(s)
- Frank H Arthur
- USDA-ARS, 1515 College Avenue, Manhattan, KS 66502, USA.
| | | | | | | |
Collapse
|
29
|
Schneider M, Smagghe G, Pineda S, Viñuela E. The ecological impact of four IGR insecticides in adults of Hyposoter didymator (Hym., Ichneumonidae): pharmacokinetics approach. ECOTOXICOLOGY (LONDON, ENGLAND) 2008; 17:181-188. [PMID: 18080860 DOI: 10.1007/s10646-007-0182-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2007] [Accepted: 11/29/2007] [Indexed: 05/25/2023]
Abstract
Adults of the parasitoid Hyposoter didymator were topically treated with four insect growth regulator (IGR) insecticides at different doses, including their respective maximum field recommended concentrations (MFRCs) [registered in Spain or recommended by manufacturers]. Methoxyfenozide and tebufenozide (100, 500 and 1,000 mg/l) did not affect any life parameter or the first parasitoid's offspring. In contrast, diflubenzuron (100, 500 and 1,000 mg/l) and pyriproxyfen (75, 500 and 1,000 mg/l) caused sublethal effects, decreasing the offspring emergence as a result of the parasitoid mortality during its immature stages inside the host and the life span of female offspring. In a second part, pharmacokinetic studies using a (14)C isotope of each IGR showed similar patterns of penetration through the cuticle, but different absorption and distribution rates inside the insect body. Cuticular penetration of pyriproxyfen reached about 99% in 3 days and those of diflubenzuron, methoxyfenozide and tebufenozide ranged from 82% to 86%. All insecticides were recovered from the reproductive system of insects and eggs. For pyriproxyfen and diflubenzuron absorption in the adult body tissues reach >65%, whereas this was only 40% for tebufenozide and methoxyfenozide. No statistical differences were found between sexes. The current data reflect that several mechanisms are likely to be involved in the selectivity of these products towards this parasitoid.
Collapse
Affiliation(s)
- Marcela Schneider
- Unidad de Protección de Cultivos, E.T.S.I. Agrónomos, Universidad Politécnica de Madrid (UPM), 28040, Madrid, Spain
| | | | | | | |
Collapse
|
30
|
Sánchez-Bayo F, Yamashita H, Osaka R, Yoneda M, Goka K. Ecological effects of imidacloprid on arthropod communities in and around a vegetable crop. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2007; 42:279-86. [PMID: 17454381 DOI: 10.1080/03601230701229239] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
To elucidate the ecological impacts of imidacloprid [1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine] on vegetable crops and their surrounding areas, arthropods on eggplant patches treated with this insecticide were monitored throughout two cultivation seasons, spring and autumn, and the results compared with those of control crops. Residues of imidacloprid in soil accounted for 4-8% of total applied, and concentrations outside the crop were always below 5 micro g/kg. Communities of the crop vegetation experienced significant density reductions, mostly of aphids, and had fewer species diversity during the first month. Those in the surrounding pasture were similarly affected though with less intensity, while non-target ground arthropods both inside and outside the crop only showed significant impacts in the two weeks after planting.
Collapse
|