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Wu J, Liu F, Sun J, Wei Q, Kang W, Wang F, Zhang C, Zhao M, Xu S, Han B. Toxic effects of acaricide fenazaquin on development, hemolymph metabolome, and gut microbiome of honeybee (Apis mellifera) larvae. CHEMOSPHERE 2024; 358:142207. [PMID: 38697560 DOI: 10.1016/j.chemosphere.2024.142207] [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: 02/18/2024] [Revised: 04/06/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Fenazaquin, a potent insecticide widely used to control phytophagous mites, has recently emerged as a potential solution for managing Varroa destructor mites in honeybees. However, the comprehensive impact of fenazaquin on honeybee health remains insufficiently understood. Our current study investigated the acute and chronic toxicity of fenazaquin to honeybee larvae, along with its influence on larval hemolymph metabolism and gut microbiota. Results showed that the acute median lethal dose (LD50) of fenazaquin for honeybee larvae was 1.786 μg/larva, and the chronic LD50 was 1.213 μg/larva. Although chronic exposure to low doses of fenazaquin exhibited no significant effect on larval development, increasing doses of fenazaquin resulted in significant increases in larval mortality, developmental time, and deformity rates. At the metabolic level, high doses of fenazaquin inhibited nucleotide, purine, and lipid metabolism pathways in the larval hemolymph, leading to energy metabolism disorders and physiological dysfunction. Furthermore, high doses of fenazaquin reduced gut microbial diversity and abundance, characterized by decreased relative abundance of functional gut bacterium Lactobacillus kunkeei and increased pathogenic bacterium Melissococcus plutonius. The disrupted gut microbiota, combined with the observed gut tissue damage, could potentially impair food digestion and nutrient absorption in the larvae. Our results provide valuable insights into the complex and diverse effects of fenazaquin on honeybee larvae, establishing an important theoretical basis for applying fenazaquin in beekeeping.
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Affiliation(s)
- Jiangli Wu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Fengying Liu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Jiajing Sun
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Qiaohong Wei
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Weipeng Kang
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Feng Wang
- Institute of Horticultural Research, Shanxi Academy of Agricultural Sciences, Shanxi Agricultural University, Taiyuan, 030031, China
| | - Chenhuan Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Sciences, China Jiliang University, Hangzhou, 310018, China
| | - Meijiao Zhao
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Shufa Xu
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
| | - Bin Han
- State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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Matos MC, Silva FWB, Filgueiras RMC, Lima DB, Melo JWS. Compatibility of pesticides with the predatory mite Neoseiulus barkeri. EXPERIMENTAL & APPLIED ACAROLOGY 2024; 92:27-39. [PMID: 37985607 DOI: 10.1007/s10493-023-00865-5] [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: 08/23/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023]
Abstract
Multiple arthropod pests can affect the same crop in agricultural systems, requiring the integration of control methods. In the present study, the effects of residual exposure to four broad-spectrum insecticides/acaricides (azadiractin, abamectin, chlorfenapyr, and fenpyroximate) on immature (development and survival time) and adult females (longevity, fecundity, and fertility life table parameters) of the predatory mite Neoseiulus barkeri were evaluated. Additionally, the insecticides/acaricides were categorized according to their selectivity based on the classification proposed by the International Organization for Biological Control (IOBC) for assessing the susceptibility of arthropods in laboratory experiments. Method 004, proposed by the Insecticide Resistance Action Committee (IRAC), was adopted for the bioassays with predators exposed to insecticide-acaricide residues. Among the insecticides/acaricides studied, azadirachtin had minimal effects on immature and adult N. barkeri (all non-significant) and was considered harmless based on the classification of toxicity according to the standards/categories proposed by the IOBC. All other insecticides/acaricides affected immature and adult N. barkeri and were considered slightly harmful in terms of toxicity, according to the IOBC.
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Affiliation(s)
- Mateus C Matos
- Departamento de Fitotecnia - Agronomia, Universidade Federal do Ceará, Av. Mister Hull, Fortaleza, CE, 60356-001, Brazil
| | - Francisco W B Silva
- Departamento de Fitotecnia - Agronomia, Universidade Federal do Ceará, Av. Mister Hull, Fortaleza, CE, 60356-001, Brazil
| | - Rosenya M C Filgueiras
- Departamento de Fitotecnia - Agronomia, Universidade Federal do Ceará, Av. Mister Hull, Fortaleza, CE, 60356-001, Brazil
| | - Debora B Lima
- Departamento de Zoologia - Centro de Biociência, Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, Recife, PE, 50670-420, Brazil
| | - Jose W S Melo
- Departamento de Zoologia - Centro de Biociência, Universidade Federal de Pernambuco, Avenida Professor Moraes Rego, Recife, PE, 50670-420, Brazil.
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Ghasemzadeh S, Messelink GJ, Avila GA, Zhang Y. Sublethal impacts of essential plant oils on biochemical and ecological parameters of the predatory mite Amblyseius swirskii. FRONTIERS IN PLANT SCIENCE 2022; 13:923802. [PMID: 36186047 PMCID: PMC9523787 DOI: 10.3389/fpls.2022.923802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 08/12/2022] [Indexed: 06/16/2023]
Abstract
The generalist predatory mite Amblyseius swirskii is a widely used natural enemy of phytophagous pests. Due to the negative effects of conventional pesticides on non-target organisms, the development of selective natural and eco-friendly pesticides, such as essential plant oils, are useful pest control tools to use in synergy with biological control agents. Essential oils of Nepeta crispa, Satureja hortensis, and Anethum graveolens showed promising results to control Tetranychus urticae. Hence an experiment was carried out to evaluate the effects of these essential oils on the biochemical and demographic parameters of A. swirskii. A significant reduction of carbohydrate, lipid, and protein contents of oil-treated predatory mites was observed. However, essential oils of S. hortensis and A. graveolens had no effect on lipid reserves. The glutathione S-transferase activity of A. swirskii was influenced by A. graveolens oil treatment. In addition, the enzyme activity of the α-esterases was elevated by all treatments. The essential oils showed no effect on β-esterases activity compared to the control treatment. None of the concentrations of the different tested oils affected the population growth parameters of A. swirskii. However, a significant reduction was observed in oviposition time and total fecundity of predatory mites. A population projection predicted the efficacy of predatory mites will likely be decreased when expose to the essential oils; however, population growth in the S. hortensis treatment was faster than in the other two treatments not including the control. The results presented in this study may have critical implications for integrated pest management (IPM) programs. However, our observations show that using the tested essential plant oils requires some caution when considered as alternatives to synthetic pesticides, and in combination with A. swirskii. Semi-field and field studies are still required to evaluate the effects on T. urticae and A. swirskii of the essential oils tested in this study, before incorporating them into IPM strategies.
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Affiliation(s)
- Somayyeh Ghasemzadeh
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Gerben J. Messelink
- Business Unit Greenhouse Horticulture, Wageningen University & Research, Bleiswijk, Netherlands
| | - Gonzalo A. Avila
- The New Zealand Institute for Plant and Food Research Limited, Auckland Mail Centre, Auckland, New Zealand
| | - Yongjun Zhang
- 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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Musa A, Međo I, Marić I, Marčić D. Transovarial toxicity matters: lethal and sublethal effects of hexythiazox on the two-spotted spider mite (Acari: Tetranychidae). EXPERIMENTAL & APPLIED ACAROLOGY 2022; 87:175-194. [PMID: 35867194 DOI: 10.1007/s10493-022-00733-8] [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: 02/21/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
The effects of hexythiazox on life-history traits and demographic parameters of Tetranychus urticae Koch (Acari: Tetranychidae) were evaluated using the age-stage two-sex life table (in fecundity-based and fertility-based variants), with emphasis on its transovarial toxicity. Hexythiazox was applied when T. urticae females were either in the preovipositional period or in the first day of oviposition. In the F0 generation bioassay, treatments with concentrations of 50, 12.5 and 3.125 mg/l significantly reduced the longevity of females and their fecundity. These effects were mostly the result of mortality of treated females (18-23%) over the 24-h exposure period. Even though the net reproductive rate (R0) decreased significantly, the intrinsic rate of increase (r), finite rate of increase (λ) and doubling time (D) were not significantly different from the control. The strongest transovarial toxic effect occurred within the first 4 days following treatment, when 52-89% of the eggs laid by treated females (96% in control) hatched. Fertility was significantly reduced by concentrations of 50, 12.5, 3.125, 0.781 and 0.195 mg/l. These concentrations caused significant reductions in R0 (34-54%), r (12-24%) and λ (3-5%), whereas D was extended for 0.4-0.7 days. In the F1 generation bioassay, 50, 12.5, 3.125, 0.781, 0.049 and 0.012 mg/l caused significant reductions in R0 (34-92%), r (10-68%) and λ (3-17%), whereas extending D for 0.3-5.6 days. These effects were mostly the consequence of transovarial toxicity. Application of the fecundity-based life table underestimated population-level effects of hexythiazox on T. urticae.
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Affiliation(s)
- Asma Musa
- Laboratory of Applied Entomology, Institute of Pesticides and Environmental Protection, Banatska 31B, P.O. Box 163, 11080, Belgrade, Serbia
- Faculty of Biology, University of Belgrade, Studentski trg 16, 11000, Belgrade, Serbia
| | - Irena Međo
- Laboratory of Applied Entomology, Institute of Pesticides and Environmental Protection, Banatska 31B, P.O. Box 163, 11080, Belgrade, Serbia
| | - Ivana Marić
- Laboratory of Applied Entomology, Institute of Pesticides and Environmental Protection, Banatska 31B, P.O. Box 163, 11080, Belgrade, Serbia
| | - Dejan Marčić
- Laboratory of Applied Entomology, Institute of Pesticides and Environmental Protection, Banatska 31B, P.O. Box 163, 11080, Belgrade, Serbia.
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Liu Z, Khan MM, Fajar A, Chen S, Guo M, Chen Y, Yang C, Wu J, Qiu B, Zhou X, Pan H. Toxicity of fluralaner against vegetable pests and its sublethal impact on a biocontrol predatory ladybeetle. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 225:112743. [PMID: 34481350 DOI: 10.1016/j.ecoenv.2021.112743] [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: 07/08/2021] [Revised: 08/19/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Fluralaner, a systemic pesticide, was originally registered with the US Food and Drug Administration in 2014 under the trade name Bravecto for flea treatment for pets. As a GABA antagonist, the footprint of fluralaner has expended beyond medical and veterinary pests in recent years. In this study, we examined the acute toxicity of fluralaner against three pests of Henosepilachna vigintioctopunctata, Megalurothrips usitatus, and Phyllotreta striolata in the Solanaceae, Fabaceae, and Cruciferae families, respectively, and the sublethal impact of fluralaner on Propylaea japonica, a widely distributed predatory ladybeetle. Based on LC50, fluralaner was effective against H. vigintioctopunctata (0.098 mg a.i. L-1 for the second instar larvae), M. usitatus (0.134 mg a.i. L-1 for adult females), and P. striolata (0.595 mg a.i. L-1 for adults). For P. japonica, however, fluralaner was substantially less effective (1.177 mg a.i. L-1 for the third instar larvae). Furthermore, the LC10 and LC30 of P. japonica were also consistently higher than the LC50 of the three pests. In addition, we did not observe any significant impacts of fluralaner at LC10 and LC30 on the life history traits, including body weight, developmental time, pre-oviposition period, and fecundity of P. japonica. Based on our results from acute toxicities and sublethal impacts, fluralaner is effective against vegetable pests, while potentially friendly to P. japonica when employed as a biological control agent.
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Affiliation(s)
- Zhuoqi Liu
- Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, Guangzhou 510642, China
| | - Muhammad Musa Khan
- Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, Guangzhou 510642, China
| | - Anugerah Fajar
- Department of Entomology, University of Kentucky, Lexington, KY 40546, USA; Research Center for Biomaterials, Indonesia Institute of Sciences, Jl. Raya Bogor km. 46, Cibinong, Bogor 16911, West Java, Indonesia
| | - Shimin Chen
- Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, Guangzhou 510642, China
| | - Mujuan Guo
- Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, Guangzhou 510642, China
| | - Yueyin Chen
- Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, Guangzhou 510642, China
| | - Chunxiao Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou 510642, China
| | - Jianhui Wu
- Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, Guangzhou 510642, China
| | - Baoli Qiu
- Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, Guangzhou 510642, China
| | - Xuguo Zhou
- Department of Entomology, University of Kentucky, Lexington, KY 40546, USA.
| | - Huipeng Pan
- Key Laboratory of Bio-Pesticide Innovation and Application of Guangdong Province, South China Agricultural University, Guangzhou 510642, China.
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Shen N, Li Y, Leviticus K, Chang XL, Tang T, Cui L, Han ZJ, Zhao CQ. Effect of broflanilide on the phytophagous mite Tetranychus urticae and the predatory mite Typhlodromips swirskii. PEST MANAGEMENT SCIENCE 2021; 77:2964-2970. [PMID: 33624401 DOI: 10.1002/ps.6335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/16/2021] [Accepted: 02/24/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Two-spotted spider mite (TSSM), Tetranychus urticae Koch, is one of the most serious pests of agricultural crops. Broflanilide exhibits high lethality against various pests and has been marketed worldwide under the Vedira and Tenebenal brands in 2020. Nevertheless, little information has been reported about its effects on agricultural mites. RESULTS Broflanilide displayed higher toxicity to TSSM eggs (24 h LC50 , 1.015 mg L-1 ) and adult females (24 h LC50 , 2.062 mg L-1 ) than commercial acaricides, including cyflumetofen, bifenazate, and profenofos. In contrast, the adverse effects of broflanilide on the predatory mite, Typhlodromips swirskii Athias-Henriot, was lower than those of fenpyroximate and abamectin. In the sublethal effect study, while adult females were treated with broflanilide, the number of eggs and longevity were reduced in LC10 and LC30 treatments; when eggs were treated with broflanilide, the egg duration and deutonymph duration were prolonged in LC30 treatment. A significant decrease in the total life span and duration and fecundity of adult females was observed in LC10 and LC30 treatments. Furthermore, the number of eggs per adult female was significantly reduced from 103.48 ± 3.69 in the control group to 69.42 ± 2.22 and 48.33 ± 1.75 in LC10 and LC30 treatments, respectively. In the greenhouse bioassay, broflanilide 5% suspension concentrate (MCI-8007) showed excellent acaricidal activity to TSSM, with 99.22% corrected control, compared with the MCI-8007 untreated group. CONCLUSION Our results indicated that broflanilide has a high acaricidal activity to TSSM and significant inhibition to fecundity of adult female, and could be considered as a potential alternative for TSSM management. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Ning Shen
- College of Plant Protection, Nanjing Agricultural University, Nanjing, P.R. China
| | - Yao Li
- College of Plant Protection, Nanjing Agricultural University, Nanjing, P.R. China
| | - Kipchoge Leviticus
- College of Plant Protection, Nanjing Agricultural University, Nanjing, P.R. China
| | - Xiao Li Chang
- Shanghai Key Laboratory of Protected Horticultural Technology, Eco-Environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai, P.R. China
| | - Tao Tang
- Hunan Academy of Agricultural Sciences, Institute of Plant Protection, Changsha, P.R. China
| | - Li Cui
- Chinese Academy of Agricultural Sciences, Institute of Plant Protection, Beijing, P.R. China
| | - Zhao Jun Han
- College of Plant Protection, Nanjing Agricultural University, Nanjing, P.R. China
| | - Chun Qing Zhao
- College of Plant Protection, Nanjing Agricultural University, Nanjing, P.R. China
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de Sousa Neto EP, Mendes JDA, Filgueiras RMC, Lima DB, Guedes RNC, Melo JWS. Effects of Acaricides on the Functional and Numerical Responses of the Phytoseid Predator Neoseiulus idaeus (Acari: Phytoseiidae) to Spider Mite Eggs. JOURNAL OF ECONOMIC ENTOMOLOGY 2020; 113:1804-1809. [PMID: 32484510 DOI: 10.1093/jee/toaa101] [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: 12/03/2019] [Indexed: 05/23/2023]
Abstract
Integrated control tactics are often necessary for pest management. This is especially true for organisms such as the two-spotted spider mite, Tetranychus urticae Koch. The management of this mite pest species relies on pesticide use, but its short life cycle associated with high selection pressure results in frequent problems of acaricide resistance and population outbreaks. Therefore, combining acaricides and natural enemies is an appealing strategy for managing this pest species. The predatory mite Neoseiulus idaeus Denmark & Muma (Phytoseiidae) is important in arid environments, where other natural enemies show low efficacy. Thus, we investigated the effects of representative acaricides used for managing spider mites around the world in several crops (i.e., abamectin, fenpyroximate, and azadirachtin), on the functional and numerical responses of the phytoseid predator N. idaeus to increasing egg densities of its prey. Acaricide exposure did not affect the type of N. idaeus functional response or attack rate (a). However, acaricide exposure decreased the amount of consumed prey and increased prey handling time (Th). All acaricides affected the numerical response of the predator, which reduced oviposition rates. Therefore, caution is required in attempts to integrate the control methods.
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Affiliation(s)
- E P de Sousa Neto
- Departamento de Fitotecnia, Universidade Federal do Ceará, Pici, Fortaleza, CE, Brazil
| | - J de A Mendes
- Departamento de Fitotecnia, Universidade Federal do Ceará, Pici, Fortaleza, CE, Brazil
| | - R M C Filgueiras
- Departamento de Fitotecnia, Universidade Federal do Ceará, Pici, Fortaleza, CE, Brazil
| | - D B Lima
- Departamento de Zoologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - R N C Guedes
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - J W S Melo
- Departamento de Fitotecnia, Universidade Federal do Ceará, Pici, Fortaleza, CE, Brazil
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Turan NB, Maltepe E, Chormey DS, Bakırdere S. Determination of fenazaquin in water and tomato matrices by GC-MS after a combined QuEChERS and switchable solvent liquid phase microextraction. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:72. [PMID: 31897765 DOI: 10.1007/s10661-019-8061-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/25/2019] [Indexed: 06/10/2023]
Abstract
This study presents the use of Quick Easy Cheap Efficient Rugged and Safe (QuEChERS) as an effective sample cleaning procedure and switchable solvent liquid phase microextraction (SS-LPME) as a preconcentration tool for the determination of fenazaquin by gas chromatography mass spectrometry (GC-MS) at ultratrace levels. After a thorough optimization process, 0.50 mL of switchable solvent, 1.5 mL of 1.0 M sodium hydroxide, and 15 s of vortexing were determined as optimum conditions of the SS-LPME method. The limit of detection (LOD) and limit of quantitation (LOQ) determined using the optimum method (SS-LPME/GC-MS) were 0.05 and 0.18 ng/mL, respectively. Compared with direct GC-MS determination of fenazaquin, the optimum method yielded about 800-fold enhancement in detection power of GC-MS. The method was applied to lake, irrigation canal, well, and wastewater samples. In order to test the method's applicability on fresh tomato samples, a QuEChERS method was used before applying the SS-LPME method. Matrix-matched calibration standards were used to enhance the accuracy of fenazaquin quantification in spiked tomato samples to obtain recovery results close to 100%.
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Affiliation(s)
- Nouha Bakaraki Turan
- Environmental Engineering Department, Civil Engineering Faculty, Yildiz Technical University, Davutpaşa, Esenler, 34220, İstanbul, Turkey
| | - Esra Maltepe
- Department of Chemistry, Faculty of Art and Science, Yildiz Technical University, Davutpaşa, Esenler, 34220, İstanbul, Turkey
| | - Dotse Selali Chormey
- Department of Chemistry, Faculty of Art and Science, Yildiz Technical University, Davutpaşa, Esenler, 34220, İstanbul, Turkey
| | - Sezgin Bakırdere
- Department of Chemistry, Faculty of Art and Science, Yildiz Technical University, Davutpaşa, Esenler, 34220, İstanbul, Turkey.
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Hafeez M, Jan S, Nawaz M, Ali E, Ali B, Qasim M, Fernández-Grandon GM, Shahid M, Wang M. Sub-lethal effects of lufenuron exposure on spotted bollworm Earias vittella (Fab): key biological traits and detoxification enzymes activity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:14300-14312. [PMID: 30864030 DOI: 10.1007/s11356-019-04655-8] [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: 08/16/2018] [Accepted: 02/19/2019] [Indexed: 06/09/2023]
Abstract
Spotted bollworm, Earias vittella, is one of the most serious and devastating insect pests of vegetables and cotton. Currently, insecticides are necessary for its control in nearly all crop systems. In this paper, we evaluate the sub-lethal effects of lufenuron on biological traits and activity of detoxification enzymes: cytochrome P450 monooxygenases, esterase, and glutathione S-transeferase (GST) in second instar larvae of E. vittella. Results showed that sub-lethal concentrations (LC15 and LC40 of lufenuron), prolonged larval period (at LC40 = 13.86 ± 1.22 day, LC15 = 13.14 ± 1.15 day, control = 12.28 ± 0.7), pupal duration (LC40 = 11.1 ± day, LC15 = 11.8 ± 0.28 day, control = 9.40 ± 0.52), and extended mean generation time (LC40 = 27.3 ± 0.43 LC15 = 29.0 ± 1.19 day, control = 26.0 ± 0.65). Sub-lethal exposure significantly prolonged the pre-adult stage, decreased pupal weight, and reduced adult longevity in the parent (F0) and F1 generation. Moreover, the fecundity and egg viability were significantly lowered in parental and F1 generations at both sub-lethal concentrations compared to the control. While no significant effects were noted on reproductive parameters such as the intrinsic rate of increase (r), finite rate of increase (λ), and net reproduction rate (R0) of F1 generation when compared to the control. Only mean generation time (T) in F1 at LC15 was significantly longer compared to the LC40 and control (LC40 = 3.79 ± 0.37, LC15 = 32.28 ± 1.55 day, control = 29.79 ± 0.55). Comparatively, the activities of cytochrome P450 monooxygenases and esterase were higher than GST in treated populations. The increase in resistance development against insecticides may possibly because of elevated activity of detoxification enzymes. These results provide useful information for monitoring resistance in integrated pest management (IPM) programs for E. vittella.
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Affiliation(s)
- Muhammad Hafeez
- Hube Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Saad Jan
- Department of Agriculture Entomology section, Bacha Khan University Charsadda, Charsadda, Pakistan.
| | - Muhammad Nawaz
- Cereal Crop Research Institute, Pirsabak, Nowshera, Khyber Pakhtunkhwa, Pakistan
| | - Ehsan Ali
- Hube Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Bahar Ali
- Hube Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China
| | - Muhammad Qasim
- College of Plant Protection Fujian Agriculture and Forest University, Fuzhou, 350002, China
| | | | - Muhammad Shahid
- Department of Agriculture and Agribusiness Management, University of Karachi, Karachi, Pakistan
| | - Mo Wang
- Hube Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, People's Republic of China.
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Ghasemzadeh S, Qureshi JA. Demographic analysis of fenpyroximate and thiacloprid exposed predatory mite Amblyseius swirskii (Acari: Phytoseiidae). PLoS One 2018; 13:e0206030. [PMID: 30439960 PMCID: PMC6237301 DOI: 10.1371/journal.pone.0206030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 10/06/2018] [Indexed: 11/19/2022] Open
Abstract
Knowledge of the impact of pesticides on predators is crucial for developing integrated pest management (IPM) programs. Amblyseius swirskii (Acari: Phytoseiidae) is a predatory mite used to control several species of pest including Tetranychus urticae (Acari: Tetranychidae) and arthropods. T. urticae is a major pest of multiple greenhouse-grown and field crops including apples in Iran. Lethal and sublethal effects of fenpyroximate and thiacloprid were investigated on A. swirskii, using these chemicals separately at recommended rates or in combination at reduced rates. Recommended tested rates of both pesticides negatively influenced the biological parameters of A. swirskii such as the net reproductive rate (R0) and the intrinsic rate of increase (r). However, the combined treatment of the two pesticides at their reduced rates was less hazardous to A. swirskii. Our findings indicate that the combined use of these chemicals may be compatible with IPM programs utilizing A. swirskii as biological control tool against phytophagous mites and other pests. However, semifield and field studies to investigate the effects of reduced rate treatments of fenpyroximate and thiacloprid alone and in combination on T. urticae and A. swirskii are required for developing IPM programs.
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Affiliation(s)
- Somayyeh Ghasemzadeh
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Haidian District, Beijing, P. R. China
- * E-mail: (SG); (JQ)
| | - Jawwad A. Qureshi
- Department of Entomology and Nematology, Institute of Food and Agricultural Sciences, Indian River Research and Education Center, University of Florida, Fort Pierce, Florida, United States of America
- * E-mail: (SG); (JQ)
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11
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Ouyang J, Tian Y, Jiang C, Yang Q, Wang H, Li Q. Laboratory assays on the effects of a novel acaricide, SYP-9625 on Tetranychus cinnabarinus (Boisduval) and its natural enemy, Neoseiulus californicus (McGregor). PLoS One 2018; 13:e0199269. [PMID: 30395569 PMCID: PMC6218021 DOI: 10.1371/journal.pone.0199269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 10/15/2018] [Indexed: 11/22/2022] Open
Abstract
Objective Tetranychus cinnabarinus (Boisduval) is an agricultural mite pest threatens crops throughout the world, causing serious economic loses. Exploring the effects of acaricides on predatory mites is crucial for the combination of biological and chemical control of T. cinnabarinus. Neoseiulus californicus (McGregor) is one of the principal natural enemies of T. cinnabarinus, which can be applied in protected agriculture. In this study, the effects of sublethal concentrations of a new acaricide, SYP-9625 on two mite species, and the effects of the application concentration on predatory mite, N. californicus were assessed. The aim of the present study was to evaluate the effect of SYP-9625 on life parameters and predation capacity of N. californicus based on the concentration-response bioassay of T. cinnabarinus to explor the application of the new acaricide with natural enemy N. californicus. Method All of the experiments were conducted under laboratory conditions [25 ± 1°C, 16: 8 h (L: D) and 75 ± 5% RH]. The sublethal concentrations LC10 (0.375μg/mL) and the LC30 (0.841μg/mL) against T. cinnabarinus and the application concentration (100μg/mL) against N. californicus were used to evaluate the effects of SYP-9625 on population parameters of N. californicus based on an age-stage, two-sex life table and its predation capacity by functional response. Result cinnabarinus females treated with LC30 exhibited significantly reduced net reproductive rates (R0 = 11.02) in their offspring compared with females treated with LC10 (R0 = 14.96) and untreated females (R0 = 32.74). However, the intrinsic rate of increase (rm) and the finite rate of increase (λ) of N. californicus indicated that the application concentration of SYP-9625 had no significant negative effect on N. californicus eggs (rm = 0.277, λ = 1.319) compared to the control (rm = 0.292, λ = 1.338). Additionally, most population parameters of N. californicus showed a dose-dependent manner with the increase of the concentration of SYP-9625 against T. cinnabarinus. SYP-9625 also stimulated the control efficiency of N. californicus against immobile stages including eggs and larvae. Conclusion This study demonstrated that sublethal concentrations of SYP-9625 can inhibit the population growth of T. cinnabarinus. In addition, the sublethal concentrations and the application concentration showed no effect on the population growth of N. californicus. These two advantages described above showed great commercial potential of this new acaricide based on population parameters of the two mite species and predation capacity of the predatory mite under laboratory conditions.
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Affiliation(s)
- Jingqi Ouyang
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Yajing Tian
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Chunxian Jiang
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Qunfang Yang
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Haijian Wang
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Qing Li
- Department of Plant Protection, College of Agronomy, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
- * E-mail:
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12
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Impact of sublethal exposure to a pyrethroid-neonicotinoid insecticide on mating, fecundity and development in the bed bug Cimex lectularius L. (Hemiptera: Cimicidae). PLoS One 2017; 12:e0177410. [PMID: 28489937 PMCID: PMC5425214 DOI: 10.1371/journal.pone.0177410] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 04/26/2017] [Indexed: 12/02/2022] Open
Abstract
Sublethal exposure to an insecticide may alter insect feeding, mating, oviposition, fecundity, development, and many other life history parameters. Such effects may have population-level consequences that are not apparent in traditional dose-mortality evaluations. Earlier, we found that a routinely used combination insecticide that includes a pyrethroid and a neonicotinoid (Temprid® SC) had deleterious effects on multiple bed bug (Cimex lectularius, L.) behaviors. Here, we demonstrate that sublethal exposure impacts physiology and reproduction as well. We report that sublethal exposure to Temprid SC has variable aberrant effects on bed bugs depending on the strain, including: a reduction in male mating success and delayed oviposition by females. However, after sublethal exposure, egg hatch rate consistently declined in every strain tested, anywhere from 34%-73%. Conversely, impact on fifth instar eclosion time was not significant. While the strains that we tested varied in their respective magnitude of sublethal effects, taken together, these effects could reduce bed bug population growth. These changes in bed bug behavior and fecundity could lead to improved efficacy of Temprid SC in the field, but recovery of impacted bugs must be considered in future studies. Sublethal effects should not be overlooked when evaluating insecticide efficacy, as it is likely that other products may also have indirect effects on population dynamics that could either aid or inhibit successful management of pest populations.
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Zhang X, Lv J, Hu Y, Wang B, Chen X, Xu X, Wang E. Prey Preference and Life Table of Amblyseius orientalis on Bemisia tabaci and Tetranychus cinnabarinus. PLoS One 2015; 10:e0138820. [PMID: 26436422 PMCID: PMC4593607 DOI: 10.1371/journal.pone.0138820] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 09/03/2015] [Indexed: 11/19/2022] Open
Abstract
Amblyseius orientalis (Ehara) (Acari: Phytoseiidae) is a native predatory mite species in China. It used to be considered as a specialist predator of spider mites. However, recent studies show it also preys on other small arthropod pests, such as Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae). Experiments were conducted to investigate (1) prey preference of A. orientalis between Tetranychus cinnabarinus (Boisd.) (Acari: Tetranychidae) and B. tabaci, and (2) development, consumption and life table parameters of A. orientalis when reared on T. cinnabarinus, B. tabaci or a mix of both prey species. When preying on different stages of T. cinnabarinus, A. orientalis preferred protonymphs, whereas when preying on different stages of B. tabaci, A. orientalis preferred eggs. When these two most preferred stages were provided together (T. cinnabarinus protonymphs and B. tabaci eggs), A. orientalis randomly selected its prey. Amblyseius orientalis was able to complete its life cycle on B. tabaci eggs, T. cinnabarinus protonymphs, or a mix of both prey. However, its developmental duration was 53.9% and 30.0% longer when reared on B. tabaci eggs than on T. cinnabarinus and a mix of both prey, respectively. In addition, it produced only a few eggs and its intrinsic rate of increase was negative when reared on B. tabaci eggs, which indicates that B. tabaci is not sufficient to maintain A. orientalis population. The intrinsic rates of increase were 0.16 and 0.23 when A. orientalis was fed on the prey mix and T. cinnabarinus, respectively. These results suggest that although B. tabaci is a poor food resource for A. orientalis in comparison to T. cinnabarinus, A. orientalis is able to sustain its population on a mix of both prey. This predatory mite may thus be a potential biological control agent of B. tabaci when this pest co-occurs with the alternative minor pest T. cinnabarinus.
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Affiliation(s)
- Xiaoxiao Zhang
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jiale Lv
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yue Hu
- Syngenta Biotechnology (China) Co., Ltd., Beijing, China
| | - Boming Wang
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Xi Chen
- Syngenta Biotechnology (China) Co., Ltd., Beijing, China
| | - Xuenong Xu
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Endong Wang
- Lab of Predatory Mites, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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14
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Huang Z, Wang Y, Zhang Y. Lethal and Sublethal Effects of Cantharidin on Development and Reproduction of Plutella xylostella (Lepidoptera: Plutellidae). JOURNAL OF ECONOMIC ENTOMOLOGY 2015; 108:1054-1064. [PMID: 26470229 DOI: 10.1093/jee/tov057] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 02/25/2015] [Indexed: 06/05/2023]
Abstract
The diamondback moth, Plutella xylostella (L.) (Lepidoptera: Plutellidae), is a major pest of cruciferous vegetables throughout the world. Cantharidin, a natural toxin isolated from beetles in the families Meloidae and Oedemeridae, has been reported to be toxic to some pests, including the diamondback moth. However, the effects of cantharidin, especially its sublethal effects on development and reproduction of diamondback moth, are less known. In this study, we investigated the sublethal effects of cantharidin at LC2 (0.41 mg liter(-1)), LC10 (1.33 mg liter(-1)), LC25 (3.38 mg liter(-1)), and LC50 (9.53 mg liter(-1)) on development and reproduction parameters of two consecutive diamondback moth generations. The results indicated that cantharidin reduced population growth by decreasing its pupation rate, pupal weight, and adult emergence, and by delaying its development. Furthermore, the duration of the female preoviposition period increased, while the oviposition and postoviposition periods, fecundity, and survival rates of the offspring decreased. The peaks of age-specific fecundity in LC10, LC25, and LC50 treatment groups lagged behind the control group. The mean values of the net reproductive rate (R0), intrinsic rate of increase (r), and finite rate of increase (λ) were significantly lower than those of the control, and the mean generation time (T) was prolonged. The present study demonstrates that cantharidin exhibits significant adverse effects on the population dynamics of diamondback moth, leading to fitness disadvantages.
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Affiliation(s)
- Zhengyu Huang
- Key Laboratory of Plant Protection Resources & Pest Management, Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yao Wang
- Key Laboratory of Plant Protection Resources & Pest Management, Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Yalin Zhang
- Key Laboratory of Plant Protection Resources & Pest Management, Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
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15
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Huang Z, Zhang Y. Chronic Sublethal Effects of Cantharidin on the Diamondback Moth Plutella xylostella (Lepidoptera: Plutellidae). Toxins (Basel) 2015; 7:1962-78. [PMID: 26035491 PMCID: PMC4488684 DOI: 10.3390/toxins7061962] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 05/18/2015] [Accepted: 05/26/2015] [Indexed: 11/17/2022] Open
Abstract
The diamondback moth, Plutella xylostella (Linnaeus) (Lepidoptera: Plutellidae), is a major pest of cruciferous vegetables worldwide. Cantharidin, a natural toxin isolated from blister beetles, has been reported to be toxic to P. xylostella. However, little is known on the chronic sublethal effects of cantharidin on this species. In this study, we assessed the changes of susceptibility, development, reproduction and other demographic parameters in both the selected P. xylostella strain (Sub, selected by LC25 cantharidin for consecutive 12 generations) and the revertant strain (SubR, derived from the Sub strain without being exposed to cantharidin for 12 generations). Results revealed that the two strains maintained a relatively high-level susceptibility to cantharidin. Severe adverse effects on the population dynamics and fitness in Sub strain were observed. In addition, repeated exposure of P. xylostella to sublethal concentration of cantharidin resulted in negative effects on adult performance and deformities in adults. Although morphologically normal for individuals, the SubR strain exhibited a disadvantage in population growth rate. Our results showed that sublethal concentration of cantharidin exhibited severe negative effects on population growth for longtime. These findings would be useful for assessing the potential effects and risk of cantharidin on P. xylostella and for developing effective integrated pest management.
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Affiliation(s)
- Zhengyu Huang
- Key Laboratory of Plant Protection Resources and Pest Management of the Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Yalin Zhang
- Key Laboratory of Plant Protection Resources and Pest Management of the Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
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