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Zhang Y, Zhang T, Wang X, Bian Z, Zhang X, Yang G, Lu Y. Volatiles from essential oils of three Lamiaceae plants repel the winged cotton aphid, disturb its feeding behavior and reduce its fecundity. PEST MANAGEMENT SCIENCE 2024; 80:4253-4263. [PMID: 38624184 DOI: 10.1002/ps.8130] [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: 01/10/2024] [Revised: 03/05/2024] [Accepted: 04/11/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND Insects use odor detection to sense their surroundings. Use of volatile compounds, such as essential oils (EOs) of plants, to repel pests and disrupt their olfaction-driven behaviors has great practical potential for use in integrated pest management. Despite the available information on the repellent effects of EOs on herbivorous insects, the olfaction-based mechanisms remain unknown. RESULTS Y-tube olfactometer tests showed that the EOs of three Lamiaceae plants - Mentha arvensis L., Mentha piperita L. and Lavandula angustifolia Mill. - were significantly repellent to winged cotton aphid, Aphis gossypii Glover. Electrical penetration graph (EPG) tests indicated the EOs reduced phloem feeding and increased the level of non-productive probing by the aphids. The EOs also reduced the fecundity of winged Aphis gossypii. Electrophysiological bioassays and gas chromatography-mass spectrometry (GC-MS) identified five physiologically active volatiles, that is menthone, isomenthone, neomenthol and menthol from Mentha piperita; menthone and menthol from Mentha arvensis; and linalool from L. angustifolia. Behavioral tests confirmed that all five compounds repelled winged Aphis gossypii. Under field conditions, the growth rate of aphid populations after 7 days was significantly lower in fields treated with these compounds than in the control fields. CONCLUSION Our findings demonstrated that three EOs not only repelled winged Aphis gossypii but also interfered with the aphid's feeding behavior and reduced its fecundity. These EOs and their active constituents have great potential as eco-friendly control products for use against Aphis gossypii. The effects of these EOs also exceed other repellents that only keep pests away from host plants. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Ying Zhang
- College of Plant Protection, Yangzhou University, Yangzhou, China
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Tao Zhang
- State Key Laboratory of IPM on Crops in Northern Region of North China, Institute of Plant Protection, Hebei Academy of Agriculture and Forestry Sciences, Baoding, China
| | - Xinhang Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Zhipeng Bian
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xiaofang Zhang
- State Key Laboratory of IPM on Crops in Northern Region of North China, Institute of Plant Protection, Hebei Academy of Agriculture and Forestry Sciences, Baoding, China
| | - Guoqing Yang
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Yanhui Lu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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Kambou SS, Valente A, Agnew P, Hien DFDS, Yerbanga RS, Moiroux N, Dabire KR, Pennetier C, Cohuet A, Carrasco D. Non-contact detection of pyrethroids widely used in vector control by Anopheles mosquitoes. PLoS One 2024; 19:e0298512. [PMID: 38995958 PMCID: PMC11244766 DOI: 10.1371/journal.pone.0298512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
Pyrethroids are the most widely used insecticides to control vector borne diseases including malaria. Physiological resistance mechanisms to these insecticides have been well described, whereas those for behavioral resistance remain overlooked. Field data suggest the presence of spatial sensory detection by Anopheles mosquitoes of the pyrethroid molecules used in insecticide-based control tools, such as long-lasting insecticide nets or insecticide residual spraying. This opens the way to the emergence of a wide range of behavioral adaptations among malaria vectors. However, the spatial sensory detection of these molecules is controversial and needs to be demonstrated. The goal of this study was to behaviorally characterize the non-contact detection of three of the most common pyrethroids used for malaria vector control: permethrin, deltamethrin an ⍺-cypermethrin. To reach this goal, we recorded the behavior (takeoff response) of Anopheles gambiae pyrethroid-sensitive and resistant laboratory strains, as well as field collected mosquitoes from the Gambiae Complex, when exposed to the headspace of bottles containing different doses of the insecticides at 25 and 35°C, in order to represent a range of laboratory and field temperatures. We found the proportion of laboratory susceptible and resistant female mosquitoes that took off was, in all treatments, dose and the temperature dependent. Sensitive mosquitoes were significantly more prone to take off only in the presence of ⍺-cypermethrin, whereas sensitive and resistant mosquitoes showed similar responses to permethrin and deltamethrin. Field-collected mosquitoes of the Gambiae Complex were also responsive to permethrin, independently of the species identity (An. gambiae, An. coluzzii and An. arabiensis) or their genotypes for the kdr mutation, known to confer resistance to pyrethroids. The observed ability of Anopheles spp. mosquitoes to detect insecticides without contact could favor the evolution of behavioral modifications that may allow them to avoid or reduce the adverse effect of insecticides and thus, the development of behavioral resistance.
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Affiliation(s)
- Sassan Simplice Kambou
- MIVEGEC, University Montpellier, IRD, CNRS, Montpellier, France
- Institut de Recherche en Sciences de la Santé (IRSS), Centre National de Recherche Scientifique et Technique (CNRST), Bobo-Dioulasso, Burkina Faso
| | - Adeline Valente
- MIVEGEC, University Montpellier, IRD, CNRS, Montpellier, France
| | - Philip Agnew
- MIVEGEC, University Montpellier, IRD, CNRS, Montpellier, France
| | - Domonbabele François de Sales Hien
- Institut de Recherche en Sciences de la Santé (IRSS), Centre National de Recherche Scientifique et Technique (CNRST), Bobo-Dioulasso, Burkina Faso
| | - Rakiswendé Serge Yerbanga
- MIVEGEC, University Montpellier, IRD, CNRS, Montpellier, France
- Institut des Sciences et Techniques (InSTech), Bobo-Dioulasso, Burkina Faso
| | - Nicolas Moiroux
- MIVEGEC, University Montpellier, IRD, CNRS, Montpellier, France
| | - Kounbobr Roch Dabire
- Institut de Recherche en Sciences de la Santé (IRSS), Centre National de Recherche Scientifique et Technique (CNRST), Bobo-Dioulasso, Burkina Faso
| | | | - Anna Cohuet
- MIVEGEC, University Montpellier, IRD, CNRS, Montpellier, France
| | - David Carrasco
- MIVEGEC, University Montpellier, IRD, CNRS, Montpellier, France
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Monyela S, Kayoka PN, Ngezimana W, Nemadodzi LE. Evaluating the Metabolomic Profile and Anti-Pathogenic Properties of Cannabis Species. Metabolites 2024; 14:253. [PMID: 38786730 PMCID: PMC11122914 DOI: 10.3390/metabo14050253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024] Open
Abstract
The Cannabis species is one of the potent ancient medicinal plants acclaimed for its medicinal properties and recreational purposes. The plant parts are used and exploited all over the world for several agricultural and industrial applications. For many years Cannabis spp. has proven to present a highly diverse metabolomic profile with a pool of bioactive metabolites used for numerous pharmacological purposes ranging from anti-inflammatory to antimicrobial. Cannabis sativa has since been an extensive subject of investigation, monopolizing the research. Hence, there are fewer studies with a comprehensive understanding of the composition of bioactive metabolites grown in different environmental conditions, especially C. indica and a few other Cannabis strains. These pharmacological properties are mostly attributed to a few phytocannabinoids and some phytochemicals such as terpenoids or essential oils which have been tested for antimicrobial properties. Many other discovered compounds are yet to be tested for antimicrobial properties. These phytochemicals have a series of useful properties including anti-insecticidal, anti-acaricidal, anti-nematicidal, anti-bacterial, anti-fungal, and anti-viral properties. Research studies have reported excellent antibacterial activity against Gram-positive and Gram-negative multidrug-resistant bacteria as well as methicillin-resistant Staphylococcus aureus (MRSA). Although there has been an extensive investigation on the antimicrobial properties of Cannabis, the antimicrobial properties of Cannabis on phytopathogens and aquatic animal pathogens, mostly those affecting fish, remain under-researched. Therefore, the current review intends to investigate the existing body of research on metabolomic profile and anti-microbial properties whilst trying to expand the scope of the properties of the Cannabis plant to benefit the health of other animal species and plant crops, particularly in agriculture.
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Affiliation(s)
- Shadrack Monyela
- Department of Agriculture and Animal Health, University of South Africa, Science Campus, Florida, Johannesburg 1710, South Africa
| | - Prudence Ngalula Kayoka
- Department of Agriculture and Animal Health, University of South Africa, Science Campus, Florida, Johannesburg 1710, South Africa
| | - Wonder Ngezimana
- Department of Horticulture, Faculty of Plant and Animal Sciences and Technology, Marondera University of Agricultural Sciences and Technology, Marondera P.O. Box 35, Zimbabwe
| | - Lufuno Ethel Nemadodzi
- Department of Agriculture and Animal Health, University of South Africa, Science Campus, Florida, Johannesburg 1710, South Africa
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Kaneko E, Matsui K, Nakahara R, Arimura GI. Novel Potential of Rose Essential Oil as a Powerful Plant Defense Potentiator. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:6526-6532. [PMID: 38498005 DOI: 10.1021/acs.jafc.3c08905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Terpenoids, natural compounds released by plants, function to enhance plant defense. The aim of this study was to investigate the effects of terpenoid-enriched essential oils (EOs) on tomato plants. From the application of a highly diluted solution of 11 different EOs to potted tomato soil, our study showed that rose essential oil (REO), rich in β-citronellol, played a crucial role in activating defense genes in tomato leaves. As a result, leaf damage caused by herbivores, such as Spodoptera litura and Tetranychus urticae, was significantly reduced. In addition, our results were validated in field trials, providing evidence that REO is an effective biostimulant for enhancing plant defense against pests. Notably, the REO solution also had the added benefit of attracting herbivore predators, such as Phytoseiulus persimilis. Our findings suggest a practical approach to promote organic tomato production that encourages environmentally friendly and sustainable practices.
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Affiliation(s)
- Eiki Kaneko
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo 125-8585, Japan
| | - Kenji Matsui
- Graduate School of Sciences and Technology for Innovation (Agriculture), Department of Biological Chemistry, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Ruka Nakahara
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo 125-8585, Japan
| | - Gen-Ichiro Arimura
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, Tokyo 125-8585, Japan
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Girardi J, Berķe-Ļubinska K, Mežaka I, Nakurte I, Skudriņš G, Pastare L. In Vivo Bioassay of the Repellent Activity of Caraway Essential Oil against Green Peach Aphid. INSECTS 2023; 14:876. [PMID: 37999074 PMCID: PMC10672326 DOI: 10.3390/insects14110876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/09/2023] [Accepted: 11/11/2023] [Indexed: 11/25/2023]
Abstract
An in vivo dual choice bioassay with white cabbage as a host plant was used to determine the repellent effect of three different accessions of caraway (Carum carvi L.) essential oils (EOs) against the green peach aphid Myzus persicae (Sulzer). The dominant components of the EO were D-Carvone (47.3-74.4%) and D-limonene (25.2-51.9%), which accounted for 99.2-99.5% of the EOs determined by GC/MS. The EO with the highest D-limonene content (51.9%) showed the highest repellence (Repellency Index (RI) = +41%), which was stable up to 330 min. The incorporation of several surfactants with different hydrophilic-lipophilic balance values (from 12.4 to 16.7) with caraway EO caused a general inhibition of the repellent effect during the testing period (RI from +41% to -19%). Overall, the findings indicate that caraway EO could be used as a green peach aphid repellent, but more work is needed to formulate the EO into a ready-to-use product.
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Affiliation(s)
- Jessica Girardi
- Institute for Environmental Solutions, “Lidlauks”, Priekuli Parish, LV-4126 Cesis, Latvia; (K.B.-Ļ.); (I.M.); (I.N.); (G.S.); (L.P.)
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Ming L, Du YW, Yuan GG, Su Q, Shi XB, Yu H, Chen G. Spodoptera litura larvae are attracted by HvAV-3h-infected S. litura larvae-damaged pepper leaves. PEST MANAGEMENT SCIENCE 2023. [PMID: 36905637 DOI: 10.1002/ps.7449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/21/2023] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Herbivore-induced plant volatiles (HIPVs) are important self-defense outputs of pepper plants to resist insect pests. Ascoviruses are pathogenic to the larvae of most lepidopteran vegetable pests. However, whether Heliothis virescens ascovirus 3h (HvAV-3h)-infected Spodoptera litura larvae can change pepper leaf HIPVs is not well understood. RESULTS Spodoptera litura larvae preferred S. litura-infested leaves, and this preference was stronger with longer duration of S. litura infestation. In addition, S. litura larvae significantly chose pepper leaves damaged by HvAV-3h-infected S. litura over the healthy pepper leaves. Results also showed that S. litura larvae preferred leaves mechanically damaged and treated with oral secretions from HvAV-3h infected-S. litura larvae in a simulation test. We captured the volatiles emitted by leaves under six treatments. Results showed that the volatile profile changed with the different treatments. Testing of volatile blends, prepared to the proportion released showed that the blend from simulated HvAV-3h-infected S. litura larvae-damaged plants was the most attractive to S. litura larvae. Further, we also found that some of the compounds significantly attracted S. litura larvae at specific concentrations. CONCLUSION HvAV-3h-infected S. litura can alter the release of HIPVs in pepper plants and thus become more attractive to S. litura larvae. We speculate that this may be due to alterations in the concentration of some compounds (such as geranylacetone and prohydrojasmon) affecting the behavior of S. litura larvae. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Lang Ming
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, Hunan, People's Republic of China
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan, People's Republic of China
| | - Yuan-Wen Du
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, Hunan, People's Republic of China
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan, People's Republic of China
| | - Ge-Ge Yuan
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, Hunan, People's Republic of China
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan, People's Republic of China
| | - Qi Su
- College of Agriculture, Yangtze University, Jingzhou, Hubei, People's Republic of China
| | - Xiao-Bing Shi
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, People's Republic of China
| | - Huan Yu
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, Hunan, People's Republic of China
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan, People's Republic of China
| | - Gong Chen
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, Hunan, People's Republic of China
- College of Plant Protection, Hunan Agricultural University, Changsha, Hunan, People's Republic of China
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Yuan GG, Zhao LC, Du YW, Yu H, Shi XB, Chen WC, Chen G. Repellence or attraction: secondary metabolites in pepper mediate attraction and defense against Spodoptera litura. PEST MANAGEMENT SCIENCE 2022; 78:4859-4870. [PMID: 36181416 DOI: 10.1002/ps.7107] [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: 04/27/2022] [Revised: 07/28/2022] [Accepted: 07/31/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Resistance to insect pests is an important self-defense characteristic of pepper plants. However, the resistance of different pepper cultivars to Spodoptera litura larvae, one of the main insect pest species on pepper, is not well understood. RESULTS Among seven pepper cultivars evaluated, cayenne pepper 'FXBX' showed the highest repellency to third instar S. litura larvae, Chao tian chili pepper 'BLTY2' showed the lowest repellency. Plant volatiles (1-hexene, hexanal, β-ionone, (E,E)-2,6-nonadienal, and methyl salicylate) affected host selection by S. litura. Among these, 1-hexene, hexanal, and β-ionone at concentrations naturally-released by pepper leaves were found to repel S. litura. Interestingly, S. litura larvae fed on the larva-attracting pepper cultivar, (BLTY2) had an extended developmental period, which was about 13 days longer than larvae fed on FXBX. Besides, the survival rate of larvae fed on BLTY2 was 22.5 ± 0.0%, indicating that the leaves of BLTY2 can kill S. litura larvae. Correlation analysis showed that larval survival rate, emergence rate, female adult longevity, and pupal weight were positively correlated with the vitamin C, amino acids, protein, cellulose, and soluble sugar contents, but were negatively correlated with wax and flavonoids contents. CONCLUSION We identified two different modes of direct defense exhibited by pepper cultivars against S. litura. One involves the release of repellent volatiles to avoid been fed on (FXBX cultivar). The other involves the inhibition of the growth and development or the direct killing of S. litura larvae which feeds on it (BLTY2 cultivar). © 2022 Society of Chemical Industry.
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Affiliation(s)
- Ge-Ge Yuan
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, P. R. China
- College of Plant Protection, Hunan Agricultural University, Changsha, P. R. China
| | - Lin-Chao Zhao
- Economic Crops Extension department, Tanghe County Agriculture and Rural Bureau, Nanyang, P. R. China
| | - Yuan-Wen Du
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, P. R. China
- College of Plant Protection, Hunan Agricultural University, Changsha, P. R. China
| | - Huan Yu
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, P. R. China
- College of Plant Protection, Hunan Agricultural University, Changsha, P. R. China
| | - Xiao-Bin Shi
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha, P. R. China
| | - Wen-Chao Chen
- Hunan Vegetable Research Institute, Hunan Academy of Agricultural Sciences, Changsha, P. R. China
| | - Gong Chen
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha, P. R. China
- College of Plant Protection, Hunan Agricultural University, Changsha, P. R. China
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Wang T, Ren Y, Zhao J, Liu Y, Xu B, Yang M, Zhao W, Zheng X, Wang J, Deng L. Research on the Bioactivity of Plant Essential Oils on Armyworm [Mythimna separata (Walker)] Larvae. Front Chem 2022; 10:936873. [PMID: 35844648 PMCID: PMC9277094 DOI: 10.3389/fchem.2022.936873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 05/17/2022] [Indexed: 11/13/2022] Open
Abstract
In order to find out the biological activity of plant essential oils on armyworm [Mythimna separata (Walker, 1865)] larvae and provide a theoretical basis for the biological control of armyworms, in this study, the antifeedant activity, repellent activity, fumigation activity, contact activity, and synergistic effect on indoxacarb of nine kinds of plant essential oils on armyworm larvae were determined. The results showed that lavender and citronella essential oils had the greatest impact on the antifeedant activity on armyworm larvae, and the antifeedant rate reached 100.00%. Meanwhile, rosemary essential oil revealed the best repellent activity on armyworm larvae with an average dwell time of 0 s at the content of 0.2%. Moreover, tea tree essential oil and lemon essential oil at the content of 2.0% had the best fumigation and contact activity against armyworm larvae, and the corrected mortality rates at 120 h were 86.67 and 66.67%, respectively. In addition, the combination of citronella essential oil and indoxacarb with the ratio of 5:1 had the best synergistic effect on armyworm larvae at 96 h, and the synergistic ratio was reached 100.00%. These findings will guide the development of new insecticides for controlling armyworm larvae.
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Affiliation(s)
- Tao Wang
- Guizhou Light Industry Technical College, Guiyang, China
- The Provincial Key Laboratory for Agricultural Pest Management in the Mountainous Region, Institute of Entomology, Guizhou University, Guiyang, China
| | - Yanling Ren
- Guizhou Light Industry Technical College, Guiyang, China
- The Provincial Key Laboratory for Agricultural Pest Management in the Mountainous Region, Institute of Entomology, Guizhou University, Guiyang, China
- *Correspondence: Yanling Ren, ; Maofa Yang,
| | - Jinyu Zhao
- Guizhou Light Industry Technical College, Guiyang, China
- The Provincial Key Laboratory for Agricultural Pest Management in the Mountainous Region, Institute of Entomology, Guizhou University, Guiyang, China
| | - Yao Liu
- Guizhou Light Industry Technical College, Guiyang, China
| | - Bin Xu
- Guizhou Sino Grain Quality Supervision Center, Guiyang, China
| | - Maofa Yang
- The Provincial Key Laboratory for Agricultural Pest Management in the Mountainous Region, Institute of Entomology, Guizhou University, Guiyang, China
- *Correspondence: Yanling Ren, ; Maofa Yang,
| | - Wanling Zhao
- Guizhou Light Industry Technical College, Guiyang, China
| | - Xinian Zheng
- Guizhou Light Industry Technical College, Guiyang, China
| | - Juan Wang
- Guizhou Light Industry Technical College, Guiyang, China
| | - Liuqiong Deng
- Guizhou Light Industry Technical College, Guiyang, China
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Ratnadass A, Martin T. Crop protection practices and risks associated with infectious tropical parasitic diseases. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 823:153633. [PMID: 35124028 DOI: 10.1016/j.scitotenv.2022.153633] [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: 07/23/2021] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 06/14/2023]
Abstract
Two recent literature reviews have shown that: i) agroecological crop protection (ACP) practices generally reduce risks of viral zoonoses, unlike conventional (agrochemical-based) practices which tend to increase them; ii) substitution-based crop protection (CP) practices (mainly biocontrol-based) could result in fewer health risks from bacterial infectious diseases. Here, we present an analysis of the scientific literature to determine to what extent the conclusions regarding viruses or bacteria can be extended to infectious diseases caused by protozoan or helminthic parasites. This analysis of cases of both vector-transmitted and water- or food-borne parasitic diseases, shows, in terms of reduction of health risks: i) an overall negative effect arising from the use of synthetic plant protection products; ii) the relevance of substitution CP practices not strictly under the ACP banner. On the other hand, the public and veterinary health issue of antiparasitic resistance is not affected by CP practices. The positive effects at the large spatio-temporal scales of ACP approaches remain valid, although to a slightly lesser extent than for bacterial diseases and viral zoonoses, in particular through biodiversity conservation which fosters natural regulations and control, preventing the undesirable effects of synthetic pesticides.
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Affiliation(s)
- Alain Ratnadass
- CIRAD, UPR HortSys, F-97455 Saint-Pierre, Réunion, France; HortSys, Univ Montpellier, CIRAD, Montpellier, France.
| | - Thibaud Martin
- HortSys, Univ Montpellier, CIRAD, Montpellier, France; CIRAD, UPR HortSys, Abidjan, Côte d'Ivoire
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Cantó-Tejero M, Guirao P, Pascual-Villalobos MJ. Aphicidal activity of farnesol against the green peach aphid - Myzus persicae. PEST MANAGEMENT SCIENCE 2022; 78:2714-2721. [PMID: 35393723 DOI: 10.1002/ps.6902] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/29/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Myzus persicae (Hemiptera: Aphididae) is considered one of most important agricultural pests in the world. It is one of the main pests in protected pepper crops under glasshouse conditions in Southeastern Spain, but its control is limited as a consequence of the few available authorized insecticides and their incompatibility with the natural enemies. Some essential oils and pure compounds such as anise (Pimpinella anisum) or farnesol are repellent and/or toxic to aphids. Their use as a botanical insecticides can be an alternative for aphid control in pepper. RESULTS The effect of farnesol was evaluated against M. persicae in a new bioassay developed to test the contact effect (aqueous formulation of the products) on aphids in laboratory conditions. Aniseed essential oil, geraniol and (Z)-jasmone at 0.6% causes an aphid mortality of >50%; and farnesol was the most effective (93.67% mortality). Farnesol nanoemulsions between 0.2% and 0.6% were formulated with an IKA-Labor Pilot dispersing machine (7940 rpm for 10 min) using Tween 80 as a surfactant. These formulations were tested on field experiments (glasshouse conditions) on pepper crops for 2 years. Foliar applications of farnesol at a concentration of 0.4% in field conditions causes a high reduction in aphid populations, with efficacies of ≈70-80% with respect to the control, similar to or even higher than the efficacy of the reference pyrethrin insecticide. CONCLUSION Farnesol showed a great aphicidal effect against M. persicae. The use of this molecule in integrated pest management programs combined with natural enemies is a good option for future control of M. persicae. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Manuel Cantó-Tejero
- Instituto Murciano Investigación y Desarrollo Agrario y Medioambiental (IMIDA), Murcia, Spain
- Universidad Miguel Hernández, E.P.S.Orihuela, Alicante, Spain
| | - Pedro Guirao
- Universidad Miguel Hernández, E.P.S.Orihuela, Alicante, Spain
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Repellency Mechanism of Natural Guar Gum-Based Film Incorporated with Citral against Brown Planthopper, Nilaparvata lugens (Stål) (Hemiptera: Delphacidae). Int J Mol Sci 2022; 23:ijms23020758. [PMID: 35054952 PMCID: PMC8776237 DOI: 10.3390/ijms23020758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/20/2021] [Accepted: 01/05/2022] [Indexed: 12/10/2022] Open
Abstract
Using of plant essential oil that coevolved as a defense mechanism against agriculture insects is an alternative means of controlling many insect pests. In order to repel brown planthoppers (BPHs), the most notorious rice insect pest, a new film based on guar gum incorporated with citral (GC film) was formulated, which was effective while being environmentally friendly. In this paper, the effect and mechanism of GC film repellency against BPHs were determined. Repellent activity test and olfactory reaction analysis showed that GC film had repellency effect against BPHs, with repellency of 60.00% and 73.93%, respectively. The result of olfactory reaction indicated that GC film repellency against BPHs relied on smell. EPG analysis showed the proportion and mean duration of np waveform were significantly higher than in CK and increased following the treatment concentration, which indicated that GC film affected the recognition of BPHs to rice. Further analysis by RNA sequencing analysis showed a total of 679 genes were significantly upregulated and 284 genes were significantly downregulated in the BPHs fed on the rice sprayed with GC film compared to control. Odorant-binding protein (OBP) gene 797 and gustatory receptor gene (GR)/odorant receptor (OR) gene 13110 showed a significant decrease in differential expression and significant increase in differential expression, respectively. There were 0.66 and 2.55 differential expression multiples between treated BPHs and control, respectively. According to the results described above, we reasoned that GC film repellency against BPHs due to smell, by release of citral, caused the recognition difficulties for BPHs to rice, and OBP gene 797 and GR/OR gene 13110 appeared to be the crucial candidate genes for GC film repellency against BPHs. The present study depicted a clear and consistent repellency effect for GC film against BPHs and preliminarily clarified the mechanism of GC film as a repellent against BPHs, which might offer an alternative approach for control of BPHs in the near future. Our results could also help in the development and improvement of GC films.
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Grzanka M, Sobiech Ł, Danielewicz J, Horoszkiewicz-Janka J, Skrzypczak G, Sawinska Z, Radzikowska D, Świtek S. Impact of essential oils on the development of pathogens of the Fusarium genus and germination parameters of selected crops. OPEN CHEM 2021. [DOI: 10.1515/chem-2021-0079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Fungal pathogens can significantly reduce the potential yield of agricultural crops, especially cereals. One of the most dangerous are pathogens of the Fusarium genus. They contribute to the infestation of plants, reduction of yields, and contamination of agricultural crops with mycotoxins, which are harmful to human beings and animal health. The absence of active substances, the problem of pathogen resistance to fungicides, and the pressure of society to limit the use of chemical plant protection products are the most important issues in agriculture. This has resulted in research aimed at finding natural methods to control plant pathogens gaining importance. One of them is the use of essential oils. In laboratory experiments, clove essential oil and pine essential oil were used. The influence of different concentrations of the above-mentioned substances on the development of the mycelium of Fusarium species (F. equiseti, F. poae, F. culmorum, and F. avenaceum) was analyzed and the germination of wheat and maize seeds infected with the pathogens of the genus Fusarium was assessed. Clove oil significantly inhibited the growth of mycelium of the Fusarium species and reduced germination parameters than pine oil.
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Affiliation(s)
- Monika Grzanka
- Faculty of Agronomy, Horticulture and Bioengineering, Agronomy Department, Poznań University of Life Sciences , Wojska Polskiego 28 , 60-637 Poznan , Poland
| | - Łukasz Sobiech
- Faculty of Agronomy, Horticulture and Bioengineering, Agronomy Department, Poznań University of Life Sciences , Wojska Polskiego 28 , 60-637 Poznan , Poland
| | - Jakub Danielewicz
- Department of Mycology, Institute of Plant Protection, National Research Institute , Władysława Wegorka 20 , 60-318 Poznan , Poland
| | - Joanna Horoszkiewicz-Janka
- Department of Mycology, Institute of Plant Protection, National Research Institute , Władysława Wegorka 20 , 60-318 Poznan , Poland
| | - Grzegorz Skrzypczak
- Faculty of Agronomy, Horticulture and Bioengineering, Agronomy Department, Poznań University of Life Sciences , Wojska Polskiego 28 , 60-637 Poznan , Poland
| | - Zuzanna Sawinska
- Faculty of Agronomy, Horticulture and Bioengineering, Agronomy Department, Poznań University of Life Sciences , Wojska Polskiego 28 , 60-637 Poznan , Poland
| | - Dominika Radzikowska
- Faculty of Agronomy, Horticulture and Bioengineering, Agronomy Department, Poznań University of Life Sciences , Wojska Polskiego 28 , 60-637 Poznan , Poland
| | - Stanisław Świtek
- Faculty of Agronomy, Horticulture and Bioengineering, Agronomy Department, Poznań University of Life Sciences , Wojska Polskiego 28 , 60-637 Poznan , Poland
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Babarinde SA, Olaniran OA, Ottun AT, Oderinde AE, Adeleye AD, Ajiboye O, Dawodu EO. Chemical composition and repellent potentials of two essential oils against larger grain borer, Prostephanus truncatus (Horn.) (Coleoptera: Bostrichidae). BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.101937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bemisia tabaci on Vegetables in the Southern United States: Incidence, Impact, and Management. INSECTS 2021; 12:insects12030198. [PMID: 33652635 PMCID: PMC7996905 DOI: 10.3390/insects12030198] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/12/2021] [Accepted: 02/13/2021] [Indexed: 01/25/2023]
Abstract
Simple Summary The sweetpotato whitefly, Bemisia tabaci, was initially discovered in the United States in 1894 but was not considered an economic insect pest on various agricultural crops across the southern and western states. After the introduction of B. tabaci Middle East-Asia Minor 1 (MEAM1) into the United States around 1985, the insect rapidly spread throughout the Southern United States to Texas, Arizona, and California. Extreme field outbreaks occurred on vegetable and other crops in those areas. The sweetpotato whitefly is now regarded as one of the most destructive insect pests in vegetable production systems in the Southern United States. The direct and indirect plant damage caused by B. tabaci has led to substantial economic losses in vegetable crops. Bemisia tabaci outbreaks on vegetables in Georgia resulted in significant economic losses of 132.3 and 161.2 million US dollars (USD) in 2016 and 2017, respectively. Therefore, integrated pest management (IPM) tactics are warranted, including cultural control by manipulation of production practices, resistant vegetable varieties, biological control using various natural enemies, and the judicious use of insecticides. Abstract Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) is among the most economically important insect pests of various vegetable crops in the Southern United States. This insect is considered a complex of at least 40 morphologically indistinguishable cryptic species. Bemisia tabaci Middle East-Asia Minor 1 (MEAM1) was initially introduced in the United States around 1985 and has since rapidly spread across the Southern United States to Texas, Arizona, and California, where extreme field outbreaks have occurred on vegetable and other crops. This pest creates extensive plant damage through direct feeding on vegetables, secreting honeydew, causing plant physiological disorders, and vectoring plant viruses. The direct and indirect plant damage in vegetable crops has resulted in enormous economic losses in the Southern United States, especially in Florida, Georgia, and Texas. Effective management of B. tabaci on vegetables relies mainly on the utilization of chemical insecticides, particularly neonicotinoids. However, B. tabaci has developed considerable resistance to most insecticides. Therefore, alternative integrated pest management (IPM) strategies are required, such as cultural control by manipulation of production practices, resistant vegetable varieties, and biological control using a suite of natural enemies for the management of the pest.
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de Carvalho SS, Ribeiro LDP, Forim MR, da Silva MFDGF, Bicalho KU, Fernandes JB, Vendramim JD. Avocado kernels, an industrial residue: a source of compounds with insecticidal activity against silverleaf whitefly. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:2260-2268. [PMID: 32875452 DOI: 10.1007/s11356-020-10675-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 08/27/2020] [Indexed: 06/11/2023]
Abstract
Fruit processing waste, such as kernels (endocarp + seed) of avocado [Persea americana Mill. (Lauraceae)], could be used as raw material in the preparation of botanical insecticides. In light of this potential, this study assessed the insecticidal action of extracts and fractions from kernels of two avocado cultivars (Breda and Margarida) on Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) biotype B, an important pest species in tropical conditions. Ethanolic and aqueous extracts prepared from kernels of P. americana, regardless of the plant cultivar used, caused promising insecticidal activity to whitefly nymphs. Based on yield in crude extracts [10.32 and 9.85% (w/w), respectively, for cultivars Breda and Margarida], on the bioassay results with crude extracts and on the chemical profiles, the ethanolic extract of kernels of P. americana cv. Breda was chose for the continuation of the study. Thus, the ethanolic extract of kernels of cv. Breda (LC50 = 197.84 ppm and LC90 = 567.19 ppm) was selected and subjected to fractionation by the liquid-liquid partition technique. The hexane and dichloromethane fractions of this extract caused significant mortality of nymphs. The analysis using the ultraviolet (UV) and hydrogen nuclear magnetic resonance (1H NMR) showed the presence of long-chain aliphatic compounds (alkanols or acetogenins of Lauraceae), alkylfurans (or avocadofurans), and unsaturated fatty acids in these fractions, which are possibly related to bioactivity observed in B. tabaci, besides saccharides. The results show that kernels of P. americana are promising sources of compounds with insecticidal action for the control of B. tabaci biotype B, a great opportunity to transform environmental problems into eco-friendly solutions to agriculture.
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Affiliation(s)
- Sheila Salles de Carvalho
- Department of Entomology and Acarology, "Luiz de Queiroz" College of Agriculture, University of São Paulo (ESALQ/USP), Piracicaba, São Paulo, 13418-900, Brazil
| | - Leandro do Prado Ribeiro
- Research Center for Family Agriculture, Agricultural Research and Rural Extension Company of Santa Catarina (CEPAF/EPAGRI), Rua Servidão Ferdinando Ricieri Tusset S/N - Bairro São Cristóvão, Chapecó, Santa Catarina, CEP 89803-904, Brazil.
| | - Moacir Rossi Forim
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos, São Paulo, 13565-905, Brazil
| | | | - Keylla Utherdyany Bicalho
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos, São Paulo, 13565-905, Brazil
| | - João Batista Fernandes
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos, São Paulo, 13565-905, Brazil
| | - José Djair Vendramim
- Department of Entomology and Acarology, "Luiz de Queiroz" College of Agriculture, University of São Paulo (ESALQ/USP), Piracicaba, São Paulo, 13418-900, Brazil
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Morales SI, Martínez AM, Viñuela E, Figueroa JI, Tamayo F, Rodríguez-Leyva E, Pineda S. Parasitism, host feeding, and transgenerational effects of three insecticides on the eulophid parasitoid Tamarixia triozae when exposed in the immature stages. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:19473-19483. [PMID: 32215799 DOI: 10.1007/s11356-020-08475-z] [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: 10/23/2019] [Accepted: 03/16/2020] [Indexed: 06/10/2023]
Abstract
The ectoparasitoid Tamarixia triozae is a promising biological control agent of the tomato psyllid, Bactericera cockerelli, based on its high parasitism rates on different crops. The parasitism, host feeding, and transgenerational effects (in terms of sex ratio) of T. triozae females exposed to three insecticides (soybean oil, imidacloprid, and abamectin) as eggs, larvae, and pupae were evaluated when a mixture of second, third, fourth, and fifth instars of the host B. cockerelli was offered. The concentrations bioassayed of each insecticide corresponded to the minimum field-registered concentration [MiFRC] and one-half the MiFRC. No parasitism of B. cockerelli second instars was recorded when parasitoid's females were exposed in any of the three immature stages to any of the insecticides. In contrast, in some cases, parasitism of T. triozae females treated as eggs, larvae, or pupae with soybean oil and imidacloprid was reduced in third, fourth, or fifth instar. In most cases, the host feeding was reduced in second and third instar of the host B. cockerelli when T. triozae females were treated as eggs, larvae, or pupae. Any insecticide modified the sex ratio in the F2 generation. In conclusion, both parasitism and host feeding were affected by the insecticides depending on the concentration and on the nymphal instar of the host B. cockerelli offered.
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Affiliation(s)
- Sinue I Morales
- Instituto de Investigaciones Agropecuarias y Forestales, Universidad Michoacana de San Nicolás de Hidalgo, Km. 9.5 Carretera Morelia-Zinapécuaro, 58880, Tarímbaro, Michoacán, Mexico
- Ingeniería en Procesos Agroalimentarios, Universidades para el Bienestar Benito Juárez García, Áporo, Michoacán, Mexico
| | - Ana M Martínez
- Instituto de Investigaciones Agropecuarias y Forestales, Universidad Michoacana de San Nicolás de Hidalgo, Km. 9.5 Carretera Morelia-Zinapécuaro, 58880, Tarímbaro, Michoacán, Mexico
| | - Elisa Viñuela
- Protección de Cultivos, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid (UPM), Madrid, Spain
| | - José I Figueroa
- Instituto de Investigaciones Agropecuarias y Forestales, Universidad Michoacana de San Nicolás de Hidalgo, Km. 9.5 Carretera Morelia-Zinapécuaro, 58880, Tarímbaro, Michoacán, Mexico
| | - Fernando Tamayo
- Secretaría de Desarrollo Agroalimentario y Rural, Centro de Sanidad Vegetal de Guanajuato, Irapuato, Guanajuato, Mexico
| | - Esteban Rodríguez-Leyva
- Posgrado en Fitosanidad, Entomología y Acarología, Colegio de Postgraduados, Montecillo, Texcoco, Estado de México, Mexico
| | - Samuel Pineda
- Instituto de Investigaciones Agropecuarias y Forestales, Universidad Michoacana de San Nicolás de Hidalgo, Km. 9.5 Carretera Morelia-Zinapécuaro, 58880, Tarímbaro, Michoacán, Mexico.
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Hull JJ, Yang YW, Miyasaki K, Brent CS. TRPA1 modulates noxious odor responses in Lygus hesperus. JOURNAL OF INSECT PHYSIOLOGY 2020; 122:104038. [PMID: 32113955 DOI: 10.1016/j.jinsphys.2020.104038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 02/25/2020] [Accepted: 02/26/2020] [Indexed: 06/10/2023]
Abstract
Lygus hesperus isa key pest of many economically important crops across western North America. Central to many aspects of the lives of these insects is chemical signalling, with identified roles in host plant selection, aggregation and passive mate guarding. The development of novel monitoring and control approaches for this insect will rely on a sound understanding of how these cues are perceived and processed, and their impact on behavior. Towards this end, we investigated allyl isothiocyanate, cinnamaldehyde and citronellal, compounds that are noxious repellents to other insects. We found that L. hesperus avoided areas containing the three compounds and that exposure induced increases in movement velocity and duration in both nymphs and adults. This suggests these compounds may work as repellents. To better understand the underlying physiology of this response, RNA interference by dsRNA injection was used to inhibit the expression of two chemosensory-associated proteins, the odorant receptor co-receptor (Orco) and the transient receptor potential A (TRPA1) channel. While knockdown of Orco did not change the reaction of adult females to citronellal, TRPA1 silencing effectively eliminated the induced increase to movement, suggesting a chemoperceptory role in citronellal detection.
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Affiliation(s)
- J Joe Hull
- USDA-ARS, Arid Land Agricultural Research Center, 21881 North Cardon Lane, Maricopa, AZ, United States
| | - Yu-Wen Yang
- USDA-ARS, Arid Land Agricultural Research Center, 21881 North Cardon Lane, Maricopa, AZ, United States
| | - Katelyn Miyasaki
- USDA-ARS, Arid Land Agricultural Research Center, 21881 North Cardon Lane, Maricopa, AZ, United States
| | - Colin S Brent
- USDA-ARS, Arid Land Agricultural Research Center, 21881 North Cardon Lane, Maricopa, AZ, United States.
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18
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Elamir EE, Almadiy AA, Nenaah GE, Alabas AA, Alsaqri HS. Comparing six mathematical link function models of the antifeedant activity of lesser grain borer exposed to sub-lethal concentrations of some extracts from calotropis procera. Bioengineered 2019; 10:292-305. [PMID: 31284815 PMCID: PMC6650199 DOI: 10.1080/21655979.2019.1641399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
In the present study, Probit, Cauchy Fractional and three types of Log methods, i.e., Logit, Log-log, and Complementary log-log were employed to model the feeding deterrence of the lesser grain borer, Rhyzopertha dominica (F) (Coleoptera: Bostrichidae), when fed latex protein, crude flavonoid fraction, 3-O-rutinosides of quercetin, kaempferol and isorhamnetin, isolated from Calotropis procera (Ait.) (Gentianales: Asclepiadaceae). A nutritional study with treated flour discs at sub-lethal concentrations indicated that the tested natural products negatively affected the feeding behavior of the lesser grain borer, causing high feeding deterrent indices. Our results assure that Probit, Logit and Clog-log model the feeding deterrent indices with high goodness of fit. The models aim to support the management of the test insect when fed grains treated with sub-lethal doses of the tested phytochemicals in order to develop a viable, precise and long-term strategy to minimize the excessive reliance on the chemical pesticides currently in use.
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Affiliation(s)
- Elhadi E Elamir
- a Department of Mathematics , Najran University , Najran , Kingdom of Saudi Arabia
| | | | - Gomah E Nenaah
- b Department of Biology , Najran University , Najran , Kingdom of Saudi Arabia
| | - Abdullah A Alabas
- a Department of Mathematics , Najran University , Najran , Kingdom of Saudi Arabia
| | - Hajer S Alsaqri
- a Department of Mathematics , Najran University , Najran , Kingdom of Saudi Arabia
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de Oliveira JL, Campos EVR, Germano-Costa T, Lima R, Vechia JFD, Soares ST, de Andrade DJ, Gonçalves KC, do Nascimento J, Polanczyk RA, Fraceto LF. Association of zein nanoparticles with botanical compounds for effective pest control systems. PEST MANAGEMENT SCIENCE 2019; 75:1855-1865. [PMID: 30653814 DOI: 10.1002/ps.5338] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/31/2018] [Accepted: 12/06/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Botanical compounds from plant species are known to have pesticidal activity and have been used in integrated pest management programs. The varied spectrum of the pesticidal action of these compounds can also avoid selection of resistance in pest populations. In this study, mixtures of the botanical compounds geraniol, eugenol and cinnamaldehyde were encapsulated in zein nanoparticles to improve their stability and efficiency. Biological effects of the nano-scale formulations of the botanical compounds were evaluated against two agricultural pests: the two-spotted spider mite (Tetranychus urticae) and the soybean looper (Chrysodeixis includes). RESULTS The formulations were stable over time (120 days) with a high encapsulation efficiency (>90%). Nanoencapsulation also provided protection against degradation of the compounds during storage and led to a decrease in toxicity to non-target organisms. The release of the compounds (especially eugenol and cinnamaldehyde) from the nanoparticles was directly influenced by temperature, and the main mechanism of release was through a diffusion-based process. Nanoencapsulated compounds also showed superior efficiency compared to the emulsified compounds in terms of repellency and insecticidal activity. CONCLUSION The findings of this study indicate that the convergence of botanical compounds with nano-scale formulation has the potential to improve efficacy for their sustainable use in integrated pest management in agriculture. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Jhones L de Oliveira
- São Paulo State University (UNESP), Institute of Science and Technology, São Paulo, Brazil
| | - Estefânia V R Campos
- São Paulo State University (UNESP), Institute of Science and Technology, São Paulo, Brazil
| | - Taís Germano-Costa
- LABiToN - Laboratory for Evaluation of Bioactivity and Toxicology of Nanomaterials, University of Sorocaba, São Paulo, Brazil
| | - Renata Lima
- LABiToN - Laboratory for Evaluation of Bioactivity and Toxicology of Nanomaterials, University of Sorocaba, São Paulo, Brazil
| | - Jaqueline Franciosi Della Vechia
- Department of Plant Protection, Faculty of Agronomy and Veterinary Sciences, São Paulo State University (UNESP), São Paulo, Brazil
| | - Sidneia Terezinha Soares
- Department of Plant Protection, Faculty of Agronomy and Veterinary Sciences, São Paulo State University (UNESP), São Paulo, Brazil
| | - Daniel Junior de Andrade
- Department of Plant Protection, Faculty of Agronomy and Veterinary Sciences, São Paulo State University (UNESP), São Paulo, Brazil
| | - Kelly Cristina Gonçalves
- Department of Plant Protection, Faculty of Agronomy and Veterinary Sciences, São Paulo State University (UNESP), São Paulo, Brazil
| | - Joacir do Nascimento
- Department of Plant Protection, Faculty of Agronomy and Veterinary Sciences, São Paulo State University (UNESP), São Paulo, Brazil
| | - Ricardo Antonio Polanczyk
- Department of Plant Protection, Faculty of Agronomy and Veterinary Sciences, São Paulo State University (UNESP), São Paulo, Brazil
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Brügger BP, Martínez LC, Plata-Rueda A, Castro BMDCE, Soares MA, Wilcken CF, Carvalho AG, Serrão JE, Zanuncio JC. Bioactivity of the Cymbopogon citratus (Poaceae) essential oil and its terpenoid constituents on the predatory bug, Podisus nigrispinus (Heteroptera: Pentatomidae). Sci Rep 2019; 9:8358. [PMID: 31175321 PMCID: PMC6555811 DOI: 10.1038/s41598-019-44709-y] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 05/17/2019] [Indexed: 11/11/2022] Open
Abstract
Podisus nigrispinus Dallas (Heteroptera: Pentatomidae), released in biological control programs, is a predator of Lepidopteran and Coleopteran species. Lemongrass essential oil and its constituents can be toxic to this natural enemy. The major constituents of lemongrass essential oil are neral (31.5%), citral (26.1%), and geranyl acetate (2.27%). Six concentrations of lemongrass essential oil and of its citral and geranyl acetate constituents were applied to the thorax of P. nigrispinus nymphs and adults. The walking and respiratory behavior of the P. nigrispinus third-instar nymphs, treated with citral and geranyl acetate at the LD50 and LD90 doses, were analyzed with video and respirometer. The lemongrass essential oil toxicity increased from first- to fifth-instar P. nigrispinus nymphs. The P. nigrispinus respiration rates (μL de CO2 h-1/insect) with citral and geranyl acetate in the LD50 and LD90 differed. Nymphs exposed to the lemongrass essential oil and its constituents on treated surfaces presented irritability or were repelled. Podisus nigrispinus adults were tolerant to the lemongrass essential oil and its constituents, geranyl acetate and citral. The altered respiratory activity with geranyl acetate and the fact that they were irritated and repelled by citral suggest caution with regard to the use of the lemongrass essential oil and its constituents in integrated pest management incorporating this predator, in order to avoid diminishing its efficiency against the pests.
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Affiliation(s)
- Bruno Pandelo Brügger
- Departamento de Entomologia/BIOAGRO, Universidade Federal de Viçosa, 36.570-900, Viçosa, Minas Gerais, Brazil.
| | - Luis Carlos Martínez
- Departamento de Biologia Geral, Universidade Federal de Viçosa, 36.570-900, Viçosa, Minas Gerais, Brazil
| | - Angelica Plata-Rueda
- Departamento de Entomologia/BIOAGRO, Universidade Federal de Viçosa, 36.570-900, Viçosa, Minas Gerais, Brazil
| | | | - Marcus Alvarenga Soares
- Programa de Pós-Graduação em Produção Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM), 39100-000, Diamantina, Minas Gerais, Brazil
| | - Carlos Frederico Wilcken
- Departamento de Proteção Vegetal, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista (UNESP), 18610-034, Campus de Botucatu, São Paulo, Brazil
| | - Amélia Guimarães Carvalho
- Departamento de Engenharia Florestal, Universidade Federal de Viçosa, 36570-900, Viçosa, Minas Gerais, Brazil
| | - José Eduardo Serrão
- Departamento de Biologia Geral, Universidade Federal de Viçosa, 36.570-900, Viçosa, Minas Gerais, Brazil
| | - José Cola Zanuncio
- Departamento de Entomologia/BIOAGRO, Universidade Federal de Viçosa, 36.570-900, Viçosa, Minas Gerais, Brazil
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Dardouri T, Gautier H, Ben Issa R, Costagliola G, Gomez L. Repellence of Myzus persicae (Sulzer): evidence of two modes of action of volatiles from selected living aromatic plants. PEST MANAGEMENT SCIENCE 2019; 75:1571-1584. [PMID: 30461184 DOI: 10.1002/ps.5271] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/05/2018] [Accepted: 11/14/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Intercropping companion plants (CPs) with horticultural crops could be an eco-friendly strategy to optimize pest management. In this research, volatile organic compounds (VOCs) emitted by some CPs were investigated for their repellent properties towards the green peach aphid (Myzus persicae Sulzer). The aim of this study was to understand the modes of action involved: direct effects on the aphid and/or indirect effects via the host plant (pepper, Capsicum annuum L.). RESULTS We identified two promising repellent CP species: the volatile blend from basil (Ocimum basilicum, direct repellent effect) and the mixture of (or previously intercropped) C. annuum plants with Tagetes patula cv. Nana (indirect effect). This effect was cultivar-dependent and linked to the volatile bouquet. For the 16 compounds present in the O. basilicum or T. patula bouquets tested individually, (E)-β-farnesene, and eugenol reported good repellent properties against M. persicae. Other compounds were repellent at medium and/or highest concentrations. Thus, the presence of repellent VOCs in a mixture does not mean that it has a repellent propriety. CONCLUSION We identified two promising repellent CP species towards M. persicae, with a likely effect of one CP's VOCs on the host plant repellency and highlighted the specific effectiveness of VOC blends. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Tarek Dardouri
- Environnement et Agronomie, UR1115 PSH Plantes et Systèmes de Culture Horticoles, INRA, Avignon, France
| | - Hélène Gautier
- Environnement et Agronomie, UR1115 PSH Plantes et Systèmes de Culture Horticoles, INRA, Avignon, France
| | - Refka Ben Issa
- Environnement et Agronomie, UR1115 PSH Plantes et Systèmes de Culture Horticoles, INRA, Avignon, France
| | - Guy Costagliola
- Environnement et Agronomie, UR1115 PSH Plantes et Systèmes de Culture Horticoles, INRA, Avignon, France
| | - Laurent Gomez
- Environnement et Agronomie, UR1115 PSH Plantes et Systèmes de Culture Horticoles, INRA, Avignon, France
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Mostafiz MM, Jhan PK, Shim JK, Lee KY. Methyl benzoate exhibits insecticidal and repellent activities against Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae). PLoS One 2018; 13:e0208552. [PMID: 30513123 PMCID: PMC6279029 DOI: 10.1371/journal.pone.0208552] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 11/19/2018] [Indexed: 01/21/2023] Open
Abstract
Methyl benzoate (MB) is a plant-derived volatile organic compound with insecticidal properties, but such activity has not been evaluated against the sweetpotato whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), a major crop pest. In this study, we tested methyl benzoate control efficacy on B. tabaci infecting tomato plants in a greenhouse, specifically measuring contact and fumigant toxicity, as well as repellent activity. For direct spray applications of 0% (control), 0.1%, 0.25%, 0.5%, 1%, 2% MB onto tomato leaves infested with adults of B. tabaci (< 5-d-old), 2% MB showed the highest corrected mortality (100%) at 24 h post-treatment. For residual toxicity in which the same MB solutions were sprayed onto tomato leaves and allowed to dry for 2 h before < 5-d-old adults were released, the 2% MB also showed the highest corrected mortality (100%) at 48 h post-treatment. The lethal median concentration (LC50) for eggs, fourth-instar nymphs, and adults were 0.3%, 0.2%, and 0.2%, respectively. In pot culture experiments, 1% MB concentration was found more effective at killing nymphs and preventing adult eclosion than all other concentrations, and gave 100 percent population reduction compared with the control. MB repelled adult whiteflies and caused 96.5% fumigant toxicity within 10 h post-treatment. Repellency and anti-oviposition rates against B. tabaci had median effective doses of 0.24% and 0.16%, respectively. Our results suggest that MB has strong potential as an environmentally friendly biopesticide for control of B. tabaci but field trials and further greenhouse studies are required to establish efficacy under more natural conditions.
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Affiliation(s)
- Mohammad Munir Mostafiz
- Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Pijush Kanti Jhan
- Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Jae-Kyoung Shim
- Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
- Institute of Plant Medicine, Kyungpook National University, Daegu, Republic of Korea
- Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, Republic of Korea
| | - Kyeong-Yeoll Lee
- Division of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, Republic of Korea
- Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, Republic of Korea
- Sustainable Agriculture Research Center, Kyungpook National University, Gunwi, Republic of Korea
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Santos ACC, Cristaldo PF, Araújo APA, Melo CR, Lima APS, Santana EDR, de Oliveira BMS, Oliveira JWS, Vieira JS, Blank AF, Bacci L. Apis mellifera (Insecta: Hymenoptera) in the target of neonicotinoids: A one-way ticket? Bioinsecticides can be an alternative. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 163:28-36. [PMID: 30031942 DOI: 10.1016/j.ecoenv.2018.07.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 06/25/2018] [Accepted: 07/12/2018] [Indexed: 06/08/2023]
Abstract
The recent decline of Apis mellifera populations around the world has been subject of intense research due to ecological and economic damages resulting from the loss of pollination services. The intensive use of insecticides from the neonicotinoids group is among the possible causal factors of this decline, including also sub-lethal effects. However, the use of synthetic insecticides has been increased on a global scale in the recent decades. In order to evaluate an alternative to the use of neonicotinoids, this work investigated the effects of a bioinsecticide and its major compound on A. mellifera (Apidae: Hymenoptera), one of the main pollinators of crop plants. For this, bees were exposed, by contact and ingestion, to the essential oil of Cymbopogon martinii (Poaceae: Poales), to geraniol (major compound) and the insecticide imidacloprid to evaluate the toxicity and behavioral effects as well as the locomotion changes and immune responses of bees treated with these compounds. In general, toxicity was greater through ingestion and the insecticide imidacloprid was more toxic to A. mellifera compared to the essential oil and its major compound. The individual and collective behaviors (i.e. trophallaxis, grooming, avoidance) as well as the immune responses of bees were not significantly affected by bioinsecticides. However, the locomotion response and flight orientation of the bees were significantly altered by insecticide when administered by ingestion. Our results highlight the potential of C. martinii essential oil and its major compound as a possible alternative to mitigate the harmful effects of neonicotinoids on bees.
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Affiliation(s)
- Ane C C Santos
- Programa de Pós-Graduação em Agricultura e Biodiversidade, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Paulo F Cristaldo
- Programa de Pós-Graduação em Agricultura e Biodiversidade, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Ana P A Araújo
- Departamento de Ecologia, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Carlisson R Melo
- Programa de Pós-Graduação em Agricultura e Biodiversidade, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Ana P S Lima
- Departamento de Engenharia Agronômica, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Emile D R Santana
- Departamento de Engenharia Agronômica, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Bruna M S de Oliveira
- Programa de Pós-Graduação em Agricultura e Biodiversidade, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - José W S Oliveira
- Departamento de Zootecnia, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Jodnes S Vieira
- Departamento de Zootecnia, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Arie F Blank
- Departamento de Engenharia Agronômica, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil
| | - Leandro Bacci
- Programa de Pós-Graduação em Agricultura e Biodiversidade, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil; Departamento de Engenharia Agronômica, Universidade Federal de Sergipe, São Cristóvão, SE, Brazil.
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Samuel Fogné D, Olivier G, Bassolé IHN, Nébié RC, Laurence M. Susceptibility of MED-Q1 and MED-Q3 Biotypes of Bemisia tabaci (Hemiptera: Aleyrodidae) Populations to Essential and Seed Oils. JOURNAL OF ECONOMIC ENTOMOLOGY 2017; 110:1031-1038. [PMID: 28369577 DOI: 10.1093/jee/tox100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Indexed: 06/07/2023]
Abstract
Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) is a major pest of many agricultural and ornamental crops in tropical and subtropical regions causing damages that result in important economic losses. Insecticides are commonly used in greenhouses or fields to control B. tabaci populations leading to rapid evolution of resistance that render treatments inefficient. Therefore, and for environmental and human health concerns, other approaches must be developed for this pest management. In the present study, we compare, using the leaf dip method, the toxicity of three essential oils (Cymbopogon citratus, Ocimum americanum, and Hyptis spicigera) and three seed oils (Lannea microcarpa, Lannea acida, and Carapa procera) with three chemical insecticides (acetamiprid, deltamethrin, and chlorpyrifos-ethyl) on adults. Two B. tabaci biotypes (MED-Q1 and MED-Q3) belonging to the Mediterranean species and collected in Burkina Faso were used. Essential oils were analyzed by gas chromatography-mass spectrometry and gas chromatography-flame ionization detector. We showed that these two biotypes have different levels of resistance to the three insecticides, MED-Q3 being more sensitive than MED-Q1. Moreover, they differ in the frequency of resistance alleles to insecticides, especially for organophosphates, as these alleles are almost fixed in MED-Q1. On the other hand, the two biotypes prove to be more susceptible to the plant extracts than to insecticides except for chlorpyrifos-ethyl, with essential oils that showed the highest insecticidal activities. Monoterpenes content were the most abundant and showed the highest insecticidal activities. Our results indicated that essential oils, but also seed oils, have the potential to constitute an alternative strategy of pest management.
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Affiliation(s)
- Drabo Samuel Fogné
- Laboratoire d'Entomologie Appliquée, Université de Ouaga I Pr Joseph Ki-ZERBO, Burkina Faso (; )
| | - Gnankine Olivier
- Laboratoire d'Entomologie Appliquée, Université de Ouaga I Pr Joseph Ki-ZERBO, Burkina Faso ( ; )
- Corresponding author, e-mail:
| | - Imael H N Bassolé
- Laboratoire de Biologie Moléculaire, d'Épidémiologie et de Surveillance des Bactéries et Virus Transmis par les Aliments (Labesta), Université de Ouaga I Pr Joseph Ki-ZERBO, Burkina Faso
| | | | - Mouton Laurence
- Université de Lyon, Université Claude Bernard, CNRS, Laboratoire de Biométrie et Biologie Evolutive, UMR 5558, F-69622 Villeurbanne, France
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Sadeh D, Nitzan N, Shachter A, Chaimovitsh D, Dudai N, Ghanim M. Whitefly attraction to rosemary (Rosmarinus officinialis L.) is associated with volatile composition and quantity. PLoS One 2017; 12:e0177483. [PMID: 28498837 PMCID: PMC5428955 DOI: 10.1371/journal.pone.0177483] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 04/27/2017] [Indexed: 11/18/2022] Open
Abstract
Whitefly (Bemisia tabaci) is an important insect pest, causing severe damage to agricultural crops. The pest was recorded in a commercial rosemary (Rosmarinus officinalis, Lamiaceae) field, colonizing rosemary variety (var.) '2', but not '11'. A series of field and controlled laboratory choice bioassays confirmed the observed phenomenon. Mature potted plants of the two varieties were randomly organized in a lemon verbena (Lippia citrodora) and lemon grass (Cymbopogon spp.) fields. Seven days later var. '2' was significantly more colonized by whiteflies than var. '11'. Under lab conditions, whiteflies were significantly more attracted to var. '2' plantlets than to var. '11' following choice bioassays. Furthermore, cotton plants dipped in an essential oil emulsion of var. '2' had significantly greater colonization than cotton plants dipped in the essential oil emulsion of var. '11'. Similar results were obtained in 'plant-plant', 'plant-no plant' as well as, 'essential oil-essential oil' choice bioassay designs. Analyses of the essential oils of the two varieties identified a set of common and unique volatiles in each variety. Among these volatiles were β-caryophyllene and limonene, two compounds known to be associated with plant-insect interactions. The attraction of B. tabaci to pure (>95%) β-caryophyllene and limonene using a range of concentrations was examined in vitro by choice bioassays. The compounds were attractive to the insect at moderate concentration, but not at the lowest or highest concentrations used, where the insect was not attracted or repelled, respectively. Limonene attracted the insects at rates that were 10-fold lower than β-caryophyllene. The results emphasized the role of host plant volatiles in shaping the structure of B. tabaci populations in nature and in agricultural systems, and provided insights into the factors that contribute to the development of insect populations with unique characteristics. The results could also serve for future development of bio-pesticides and in breeding programs.
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Affiliation(s)
- Dganit Sadeh
- Unit of Aromatic and Medicinal plants, Newe Ya’ar Research Center, ARO, Ramat-Yishay, Israel
- Department of Entomology, Volcani Center, ARO, Bet Dagan, Israel
- Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Nadav Nitzan
- Unit of Aromatic and Medicinal plants, Newe Ya’ar Research Center, ARO, Ramat-Yishay, Israel
| | - Alona Shachter
- Unit of Aromatic and Medicinal plants, Newe Ya’ar Research Center, ARO, Ramat-Yishay, Israel
| | - David Chaimovitsh
- Unit of Aromatic and Medicinal plants, Newe Ya’ar Research Center, ARO, Ramat-Yishay, Israel
| | - Nativ Dudai
- Unit of Aromatic and Medicinal plants, Newe Ya’ar Research Center, ARO, Ramat-Yishay, Israel
- Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
- * E-mail: (MG); (ND)
| | - Murad Ghanim
- Department of Entomology, Volcani Center, ARO, Bet Dagan, Israel
- Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
- * E-mail: (MG); (ND)
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Synergistic Effects of Agronet Covers and Companion Cropping on Reducing Whitefly Infestation and Improving Yield of Open Field-Grown Tomatoes. AGRONOMY-BASEL 2016. [DOI: 10.3390/agronomy6030042] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abtew A, Subramanian S, Cheseto X, Kreiter S, Garzia GT, Martin T. Repellency of Plant Extracts against the Legume Flower Thrips Megalurothrips sjostedti (Thysanoptera: Thripidae). INSECTS 2015; 6:608-25. [PMID: 26463406 PMCID: PMC4598655 DOI: 10.3390/insects6030608] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 05/29/2015] [Accepted: 06/11/2015] [Indexed: 11/29/2022]
Abstract
Megalurothrips sjostedti Trybom is an important pest of cowpea (Vigna unguiculata L.) in Africa. To propose an alternative to chemical control, the repellency of 24 plant extracts was evaluated against adult female thrips of M. sjostedti in the laboratory. Plant extracts in ethanol were separately applied on a filter paper disk in a still air visual cue olfactometer. The results showed highly significant differences in repellency among extract type, concentration and their interactions. We classified the level of repellency into four categories as strong, good, moderate and weak or non- repellent based on hierarchical ascendant classification. We identified Piper nigrum, Cinnamomum zeylanicum, Cinnamomum cassia as strong repellents. Five extracts were classified as good, eight as moderate and the remaining eight extracts were weak or non-repellent. Repellency of the extracts increased with the concentration suggesting that the behavioral response of M. sjostedti was dose-dependent. Mono- and sesquiterpene hydrocarbon compounds from seven highly repellent extracts were identified by gas chromatography-mass spectrometry (GC/MS). The use of repellent extracts could be useful in developing integrated pest management strategies for thrips on legume crops. In this regard, the specific modes of action of the identified compounds need to be investigated to incorporate them into the existing crop protection strategies.
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Affiliation(s)
- Andnet Abtew
- International Centre of Insect Physiology and Ecology (icipe), Nairobi 30772, Kenya.
- Montpellier SupAgro, UMR CBGP CIRAD/INRA/IRD/SupAgro, Campus International de Baillarguet, CS 30016, Montferrier-sur-Lez 34988, France.
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), University of Catania, Via Santa Sofia 100, Catania 95123, Italy.
| | - Sevgan Subramanian
- International Centre of Insect Physiology and Ecology (icipe), Nairobi 30772, Kenya.
| | - Xavier Cheseto
- International Centre of Insect Physiology and Ecology (icipe), Nairobi 30772, Kenya.
| | - Serge Kreiter
- Montpellier SupAgro, UMR CBGP CIRAD/INRA/IRD/SupAgro, Campus International de Baillarguet, CS 30016, Montferrier-sur-Lez 34988, France.
| | - Giovanna Tropea Garzia
- Dipartimento di Agricoltura, Alimentazione e Ambiente (Di3A), University of Catania, Via Santa Sofia 100, Catania 95123, Italy.
| | - Thibaud Martin
- International Centre of Insect Physiology and Ecology (icipe), Nairobi 30772, Kenya.
- Centre de coopération internationale en recherche agronomique pour le dévelopement (CIRAD), UPR HORTSYS, Montpellier F-34398, France.
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