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Pai HH, Chang CY, Lin KC, Hsu EL. Rapid insecticide resistance bioassays for three major urban insects in Taiwan. Parasit Vectors 2023; 16:447. [PMID: 38042818 PMCID: PMC10693703 DOI: 10.1186/s13071-023-06055-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 11/13/2023] [Indexed: 12/04/2023] Open
Abstract
BACKGROUND Taiwan's warm and humid climate and dense population provide a suitable environment for the breeding of pests. The three major urban insects in Taiwan are house flies, cockroaches, and mosquitoes. In cases where a disease outbreak or high pest density necessitates chemical control, selecting the most effective insecticide is crucial. The resistance of pests to the selected environmental insecticide must be rapidly assessed to achieve effective chemical control and reduce environmental pollution. METHODS In this study, we evaluated the resistance of various pests, namely, house flies (Musca domestica L.), cockroaches (Blattella germanica L. and Periplaneta americana), and mosquitoes (Aedes aegypti and Ae. albopictus) against 10 commonly used insecticides. Rapid insecticide resistance bioassays were performed using discriminating doses or concentrations of the active ingredients of insecticides. RESULTS Five field strains of M. domestica (L.) are resistant to all 10 commonly used insecticides and exhibit cross- and multiple resistance to four types of pyrethroids and three types of organophosphates, propoxur, fipronil, and imidacloprid. None of the five field strains of P. americana are resistant to any of the tested insecticides, and only one strain of B. germanica (L.) is resistant to permethrin. One strain of Ae. albopictus is resistant to pirimiphos-methyl, whereas five strains of Ae. aegypti exhibit multiple resistance to pyrethroids, organophosphates, and other insecticides. CONCLUSIONS In the event of a disease outbreak or high pest density, rapid insecticide resistance bioassays may be performed using discriminating doses or concentrations to achieve precise and effective chemical control, reduce environmental pollution, and increase control efficacy.
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Affiliation(s)
- Hsiu-Hua Pai
- Department of Kinesiology, Health, and Leisure Studies, National University of Kaohsiung, Kaohsiung, Taiwan (ROC).
| | - Chun-Yung Chang
- Department of Kinesiology, Health, and Leisure Studies, National University of Kaohsiung, Kaohsiung, Taiwan (ROC)
| | - Kai-Chen Lin
- Department of Kinesiology, Health, and Leisure Studies, National University of Kaohsiung, Kaohsiung, Taiwan (ROC)
| | - Err-Lieh Hsu
- Department of Entomology, National Taiwan University, Taipei, Taiwan (ROC)
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Njiru C, Saalwaechter C, Mavridis K, Vontas J, Geibel S, Wybouw N, Van Leeuwen T. The complex II resistance mutation H258Y in succinate dehydrogenase subunit B causes fitness penalties associated with mitochondrial respiratory deficiency. PEST MANAGEMENT SCIENCE 2023; 79:4403-4413. [PMID: 37394630 DOI: 10.1002/ps.7640] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/31/2023] [Accepted: 07/03/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND The acaricides cyflumetofen, cyenopyrafen and pyflubumide inhibit the mitochondrial electron transport chain at complex II [succinate dehydrogenase (SDH) complex]. A target site mutation H258Y was recently discovered in a resistant strain of the spider mite pest Tetranychus urticae. H258Y causes strong cross-resistance between cyenopyrafen and pyflubumide, but not cyflumetofen. In fungal pests, fitness costs associated with substitutions at the corresponding H258 position that confer resistance to fungicidal SDH inhibitors have not been uncovered. Here, we used H258 and Y258 near-isogenic lines of T. urticae to quantify potential pleiotropic fitness effects on mite physiology. RESULTS The H258Y mutation was not associated with consistent significant changes of single generation life history traits and fertility life table parameters. In contrast, proportional Sanger sequencing and droplet digital polymerase chain reaction showed that the frequency of the resistant Y258 allele decreased when replicated 50:50 Y258:H258 experimentally evolving populations were maintained in an acaricide-free environment for approximately 12 generations. Using in vitro assays with mitochondrial extracts from resistant (Y258) and susceptible (H258) lines, we identified a significantly reduced SDH activity (48% lower activity) and a slightly enhanced combined complex I and III activity (18% higher activity) in the Y258 lines. CONCLUSION Our findings suggest that the H258Y mutation is associated with a high fitness cost in the spider mite T. urticae. Importantly, while it is the most common approach, it is clear that only comparing life history traits and life table fecundity does not allow to reliably estimate fitness costs of target site mutations in natural pest populations. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Christine Njiru
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | | | - Konstantinos Mavridis
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Pesticide Science Laboratory, Department of Crop Science, Agricultural University of Athens, Athens, Greece
| | - John Vontas
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion, Greece
- Pesticide Science Laboratory, Department of Crop Science, Agricultural University of Athens, Athens, Greece
| | - Sven Geibel
- Crop Science Division, Bayer AG, Monheim, Germany
| | - Nicky Wybouw
- Terrestrial Ecology Unit, Department of Biology, Faculty of Science, Ghent University, Ghent, Belgium
| | - Thomas Van Leeuwen
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
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Chen J, Zheng L, Ye Z, Wang J, Zhang F, Fu Y, Zhang C. Evaluation of the Predatory Mite Neoseiulus barkeri against Spider Mites Damaging Rubber Trees. INSECTS 2023; 14:648. [PMID: 37504654 PMCID: PMC10380992 DOI: 10.3390/insects14070648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/17/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
The spider mites Eotetranychus sexmaculatus, Eutetranychus orientalis and Oligonychus biharensisin are severe pests of rubber trees in China. The predatory mite Neoseiulus barkeri has been found to be a natural enemy of these three pests, while nothing is known about the biological performance of this phytoseiid predator against these phytophagous mites. In this study, the development, survivorship, reproduction, adult longevity, fecundity, sex ratio and population growth parameters of N. barkeri fed on these pests were evaluated in comparison to the factitious prey Tyrophagus putrescentiae in the laboratory at 25 ± 1 °C, 75 ± 5% relative humidity and a 12:12 (L:D) h photoperiod. The results showed that N. barkeri could develop from egg to adult and reproduced successfully on the three preys. The survival rate of N. barkeri from egg to adult was higher when fed on E. orientalis (100%) and T. putrescentiae (100%) than when fed on O. biharensisin (93.60%) and E. sexmaculatus (71.42%). The shortest and longest generation time for N. barkeri were observed on E. orientalis with 6.67 d and E. sexmaculatus with 12.50 d, respectively. The maximum fecundity (29.35 eggs per female) and highest intrinsic rate of increase (rm = 0.226) were recorded when N. barkeri fed on E. orientalis, while feeding on E. sexmaculatus gave the minimum fecundity (1.87 eggs per female) and lowest reproduction rate (rm = 0.041). The values of these parameters for N. barkeri evaluated on O. biharensisin were found to be comparable to those obtained on T. putrescentiae. The sex ratio of N. barkeri progeny on the preys mentioned above, apart from O. biharensisin, was female biased. According to the findings, N. barkeri could serve as a promising biocontrol agent against E. orientalis and O. biharensisin, and possibly E. sexmaculatus on rubber trees.
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Affiliation(s)
- Junyu Chen
- College of Ecology and Environment, Hainan University, Haikou 570100, China
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 570100, China
- Engineering Research Center for Biological Control of Tropical Crops Diseases and Insect Pest, Haikou 570100, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 570100, China
| | - Lijiu Zheng
- College of Ecology and Environment, Hainan University, Haikou 570100, China
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 570100, China
- Engineering Research Center for Biological Control of Tropical Crops Diseases and Insect Pest, Haikou 570100, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 570100, China
| | - Zhengpei Ye
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 570100, China
- Engineering Research Center for Biological Control of Tropical Crops Diseases and Insect Pest, Haikou 570100, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 570100, China
| | - Jianyun Wang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 570100, China
- Engineering Research Center for Biological Control of Tropical Crops Diseases and Insect Pest, Haikou 570100, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 570100, China
| | - Fangping Zhang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 570100, China
- Engineering Research Center for Biological Control of Tropical Crops Diseases and Insect Pest, Haikou 570100, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 570100, China
| | - Yueguan Fu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 570100, China
- Engineering Research Center for Biological Control of Tropical Crops Diseases and Insect Pest, Haikou 570100, China
- Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture and Rural Affairs, Haikou 570100, China
| | - Chenghui Zhang
- College of Ecology and Environment, Hainan University, Haikou 570100, China
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Feng K, Liu J, Zhao M, Jiang Z, Liu P, Wei P, Dou W, He L. The dynamic changes of genes revealed that persistently overexpressed genes drive the evolution of cyflumetofen resistance in Tetranychus cinnabarinus. INSECT SCIENCE 2022. [PMID: 36380571 DOI: 10.1111/1744-7917.13151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 11/02/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Changes in gene expression are associated with the evolution of pesticide resistance in arthropods. In this study, transcriptome sequencing was performed in 3 different resistance levels (low, L; medium, M; and high, H) of cyflumetofen-resistant strain (YN-CyR). A total of 1 685 genes, including 97 detoxification enzyme genes, were upregulated in all 3 stages, of which 192 genes, including 11 detoxification enzyme genes, showed a continuous increase in expression level with resistance development (L to H). RNA interference experiments showed that overexpression of 7 genes (CYP392A1, TcGSTd05, CCE06, CYP389A1, TcGSTz01, CCE59, and CYP389C2) is involved in the development of cyflumetofen resistance in Tetranychus cinnabarinus. The recombinant CYP392A1 can effectively metabolize cyflumetofen, while CCE06 can bind and sequester cyflumetofen in vitro. We compared 2 methods for rapid screening of resistance molecular markers, including short-term induction and 1-time high-dose selection. Two detoxification enzyme genes were upregulated in the field susceptible strain (YN-S) by induction with 20% lethal concentration (LC20 ) of cyflumetofen. However, 16 detoxification enzyme genes were upregulated by 1-time selection with LC80 of cyflumetofen. Interestingly, the 16 genes were overexpressed in all 3 resistance stages. These results indicated that 1 685 genes that were upregulated at the L stage constituted the basis of cyflumetofen resistance, of which 192 genes in which upregulation continued to increase were the main driving force for the development of resistance. Moreover, the 1-time high-dose selection is an efficient way to rapidly obtain the resistance-related genes that can aid in the development of resistance markers and resistance management in mites.
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Affiliation(s)
- Kaiyang Feng
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Jialu Liu
- Key Scientific Research Base of Pest and Mold Control of Heritage Collection (Chongqing China Three Gorges Museum), State Administration of Cultural Heritage, Chongqing, China
| | - Mingyu Zhao
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
- Key Scientific Research Base of Pest and Mold Control of Heritage Collection (Chongqing China Three Gorges Museum), State Administration of Cultural Heritage, Chongqing, China
| | - Zhixin Jiang
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Peilin Liu
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Peng Wei
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Wei Dou
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
| | - Lin He
- Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing, China
- Academy of Agricultural Sciences, Southwest University, Chongqing, China
- State Cultivation Base of Crop Stress Biology for Southern Mountainous Land of Southwest University, Southwest University, Chongqing, China
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Njiru C, Saalwaechter C, Gutbrod O, Geibel S, Wybouw N, Van Leeuwen T. A H258Y mutation in subunit B of the succinate dehydrogenase complex of the spider mite Tetranychus urticae confers resistance to cyenopyrafen and pyflubumide, but likely reinforces cyflumetofen binding and toxicity. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2022; 144:103761. [PMID: 35341907 DOI: 10.1016/j.ibmb.2022.103761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/18/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
Succinate dehydrogenase (SDH) inhibitors such as cyflumetofen, cyenopyrafen and pyflubumide, are selective acaricides that control plant-feeding spider mite pests. Resistance development to SDH inhibitors has been investigated in a limited number of populations of the spider mite Tetranychus urticae and is associated with cytochrome P450 based detoxification and target-site mutations such as I260 T/V in subunit B and S56L in subunit C of SDH. Here, we report the discovery of a H258Y substitution in subunit B of SDH in a highly pyflubumide resistant population of T. urticae. As this highly conserved residue corresponds to one of the ubiquinone binding residues in fungi and bacteria, we hypothesized that H258Y could have a strong impact on SDH inhibitors toxicity. Marker assisted introgression and toxicity bioassays revealed that H258Y caused high cross resistance between cyenopyrafen and pyflubumide, but increased cyflumetofen toxicity. Resistance associated with H258Y was determined as dominant for cyenopyrafen, but recessive for pyflubumide. In vitro SDH assays with extracted H258 mitochondria showed that cyenopyrafen and the active metabolites of pyflubumide and cyflumetofen, interacted strongly with complex II. However, a clear shift in IC50s was observed for cyenopyrafen and the metabolite of pyflubumide when Y258 mitochondria were investigated. In contrast, the mutation slightly increased affinity of the cyflumetofen metabolite, likely explaining its increased toxicity for the mite lines carrying the substitution. Homology modeling and ligand docking further revealed that, although the three acaricides share a common binding motif in the Q-site of SDH, H258Y eliminated an important hydrogen bond required for cyenopyrafen and pyflubumide binding. In addition, the hydrogen bond between cyenopyrafen and Y117 in subunit D was also lost upon mutation. In contrast, cyflumetofen affinity was enhanced due to an additional hydrogen bond to W215 and hydrophobic interactions with the introduced Y258 in subunit B. Altogether, our findings not only highlight the importance of the highly conserved histidine residue in the binding of SDH inhibitors, but also reveal that a resistance mutation can provide both positive and negative cross-resistance within the same acaricide mode of action group.
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Affiliation(s)
- Christine Njiru
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Corinna Saalwaechter
- Bayer AG, Crop Science Division, Alfred-Nobel-Straße 50, 40789, Monheim, Germany
| | - Oliver Gutbrod
- Bayer AG, Crop Science Division, Alfred-Nobel-Straße 50, 40789, Monheim, Germany
| | - Sven Geibel
- Bayer AG, Crop Science Division, Alfred-Nobel-Straße 50, 40789, Monheim, Germany
| | - Nicky Wybouw
- Terrestrial Ecology Unit, Department of Biology, Faculty of Science, Ghent University, K.L. Ledeganckstraat 35, 9000, Ghent, Belgium.
| | - Thomas Van Leeuwen
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
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Salehipourshirazi G, Bruinsma K, Ratlamwala H, Dixit S, Arbona V, Widemann E, Milojevic M, Jin P, Bensoussan N, Gómez-Cadenas A, Zhurov V, Grbic M, Grbic V. Rapid specialization of counter defenses enables two-spotted spider mite to adapt to novel plant hosts. PLANT PHYSIOLOGY 2021; 187:2608-2622. [PMID: 34618096 PMCID: PMC8644343 DOI: 10.1093/plphys/kiab412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/05/2021] [Indexed: 05/06/2023]
Abstract
Genetic adaptation, occurring over a long evolutionary time, enables host-specialized herbivores to develop novel resistance traits and to efficiently counteract the defenses of a narrow range of host plants. In contrast, physiological acclimation, leading to the suppression and/or detoxification of host defenses, is hypothesized to enable broad generalists to shift between plant hosts. However, the host adaptation mechanisms used by generalists composed of host-adapted populations are not known. Two-spotted spider mite (TSSM; Tetranychus urticae) is an extreme generalist herbivore whose individual populations perform well only on a subset of potential hosts. We combined experimental evolution, Arabidopsis thaliana genetics, mite reverse genetics, and pharmacological approaches to examine mite host adaptation upon the shift of a bean (Phaseolus vulgaris)-adapted population to Arabidopsis. We showed that cytochrome P450 monooxygenases are required for mite adaptation to Arabidopsis. We identified activities of two tiers of P450s: general xenobiotic-responsive P450s that have a limited contribution to mite adaptation to Arabidopsis and adaptation-associated P450s that efficiently counteract Arabidopsis defenses. In approximately 25 generations of mite selection on Arabidopsis plants, mites evolved highly efficient detoxification-based adaptation, characteristic of specialist herbivores. This demonstrates that specialization to plant resistance traits can occur within the ecological timescale, enabling the TSSM to shift to novel plant hosts.
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Affiliation(s)
| | - Kristie Bruinsma
- Department of Biology, The University of Western Ontario, London, Ontario N6A 5B8, Canada
| | - Huzefa Ratlamwala
- Department of Biology, The University of Western Ontario, London, Ontario N6A 5B8, Canada
| | - Sameer Dixit
- Department of Biology, The University of Western Ontario, London, Ontario N6A 5B8, Canada
| | - Vicent Arbona
- Departament de Ciències Agràries i del Medi Natural, Universitat Jaume I, Castelló de la Plana, E-12071, Spain
| | - Emilie Widemann
- Department of Biology, The University of Western Ontario, London, Ontario N6A 5B8, Canada
| | - Maja Milojevic
- Department of Biology, The University of Western Ontario, London, Ontario N6A 5B8, Canada
| | - Pengyu Jin
- Department of Biology, The University of Western Ontario, London, Ontario N6A 5B8, Canada
| | - Nicolas Bensoussan
- Department of Biology, The University of Western Ontario, London, Ontario N6A 5B8, Canada
| | - Aurelio Gómez-Cadenas
- Departament de Ciències Agràries i del Medi Natural, Universitat Jaume I, Castelló de la Plana, E-12071, Spain
| | - Vladimir Zhurov
- Department of Biology, The University of Western Ontario, London, Ontario N6A 5B8, Canada
| | - Miodrag Grbic
- Department of Biology, The University of Western Ontario, London, Ontario N6A 5B8, Canada
- Instituto de Ciencias de la Vid y el Vino (CSIC, UR, Gobiernode La Rioja), Logrono 26006, Spain
- Department of Biology, University of Belgrade, Belgrade, Serbia
| | - Vojislava Grbic
- Department of Biology, The University of Western Ontario, London, Ontario N6A 5B8, Canada
- Author for communication:
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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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8
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Sugimoto N, Takahashi A, Ihara R, Itoh Y, Jouraku A, Van Leeuwen T, Osakabe M. QTL mapping using microsatellite linkage reveals target-site mutations associated with high levels of resistance against three mitochondrial complex II inhibitors in Tetranychus urticae. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2020; 123:103410. [PMID: 32442626 DOI: 10.1016/j.ibmb.2020.103410] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/28/2020] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
The acaricides cyflumetofen, cyenopyrafen, and pyflubumide act as inhibitors of the mitochondrial electron transport system at complex II (succinate dehydrogenase; SDH), a new mode of action in arthropods. The development and mechanisms of low-level resistance against cyenopyrafen and cyflumetofen have been previously reported in Tetranychus urticae. In the present study, we investigated high levels of resistance against three SDH inhibitors in T. urticae field populations and clarify the genetic basis of resistance using quantitative trait locus (QTL) analysis. First, we constructed a microsatellite linkage map comprising 64 markers assembled into three linkage groups (LGs) with total length of 683.8 cM and average marker spacing of 11.03 cM. We then used the linkage map to perform QTL mapping, and identified significant QTLs contributing to resistance to cyflumetofen (one QTL on LG1), cyenopyrafen (one QTL on LG3), and pyflubumide (two QTLs on LG1 and LG3). The QTL peaks on LG1 for cyflumetofen and pyflubumide overlapped and included the SdhB locus. For cyenopyrafen resistance, the QTLs on LG3 included the SdhC locus. For cyflumetofen resistance, we found an I260T mutation in SdhB. For pyflubumide and cyenopyrafen resistance, we detected I260V and S56L substitutions in SdhB and SdhC, respectively, by direct sequencing. Both I260 in SdhB and S56 in SdhC were present in highly conserved regions of the ubiquinone binding site formed at the interface among SdhB, SdhC, and SdhD. Mutations at these positions have been implicated in resistance against fungicides that act as Sdh inhibitors in various pathogens. Therefore, we consider these mutations to be target-site resistance mutations for these acaricidal SDH inhibitors.
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Affiliation(s)
- Naoya Sugimoto
- Laboratory of Ecological Information, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan; Biology Group, Health and Crop Sciences Research Laboratory, Sumitomo Chemical Co., Ltd, Takarazuka 665-8555, Japan.
| | - Akihiro Takahashi
- Laboratory of Ecological Information, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Rei Ihara
- Laboratory of Ecological Information, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Yusuke Itoh
- Laboratory of Ecological Information, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Akiya Jouraku
- Institute of Agrobiological Sciences, National Agriculture and Food Research Organization (NARO), 1-2 Owashi, Tsukuba, Ibaraki, 305-8634, Japan
| | - Thomas Van Leeuwen
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Coupure Links 653, Ghent University, B-9000, Ghent, Belgium
| | - Masahiro Osakabe
- Laboratory of Ecological Information, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
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9
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Xue W, Snoeck S, Njiru C, Inak E, Dermauw W, Van Leeuwen T. Geographical distribution and molecular insights into abamectin and milbemectin cross-resistance in European field populations of Tetranychus urticae. PEST MANAGEMENT SCIENCE 2020; 76:2569-2581. [PMID: 32237053 DOI: 10.1002/ps.5831] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/23/2020] [Accepted: 04/01/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Milbemectin and abamectin are frequently used to control the spider mite Tetranychus urticae. The development of abamectin resistance in this major pest has become an increasing problem worldwide, potentially compromising the use of milbemectin. In this study, a large collection of European field populations was screened for milbemectin and abamectin resistance, and both target-site and metabolic (cross-)resistance mechanisms were investigated. RESULTS High to very high levels of abamectin resistance were found in one third of all populations, while milbemectin resistance levels were low for most populations. The occurrence of well-known target-site resistance mutations in glutamate-gated chloride channels (G314D in GluCl1 and G326E in GluCl3) was documented in the most resistant populations. However, a new mutation, I321T in GluCl3, was also uncovered in three resistant populations, while a V327G and L329F mutation was found in GluCl3 of one resistant population. A differential gene-expression analysis revealed the overexpression of detoxification genes, more specifically cytochrome P450 monooxygenase (P450) and UDP-glycosyltransferase (UGT) genes. Multiple UGTs were functionally expressed, and their capability to glycosylate abamectin and milbemectin, was tested and confirmed. CONCLUSIONS We found a clear correlation between abamectin and milbemectin resistance in European T. urticae populations, but as milbemectin resistance levels were low, the observed cross-resistance is probably not of operational importance. The presence of target-site resistance mutations in GluCl genes was confirmed in most but not all resistant populations. Gene-expression analysis and functional characterization of P450s and UGTs suggests that also metabolic abamectin resistance mechanisms are common in European T. urticae populations. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Wenxin Xue
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Ghent, Belgium
| | - Simon Snoeck
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Ghent, Belgium
| | - Christine Njiru
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Ghent, Belgium
| | - Emre Inak
- Department of Plant Protection, Faculty of Agriculture, Ankara University, Diskapi, Ankara, Turkey
| | - Wannes Dermauw
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Ghent, Belgium
| | - Thomas Van Leeuwen
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Ghent, Belgium
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10
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İnak E, Alpkent YN, Çobanoğlu S, Dermauw W, Van Leeuwen T. Resistance incidence and presence of resistance mutations in populations of Tetranychus urticae from vegetable crops in Turkey. EXPERIMENTAL & APPLIED ACAROLOGY 2019; 78:343-360. [PMID: 31250237 DOI: 10.1007/s10493-019-00398-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 06/13/2019] [Indexed: 06/09/2023]
Abstract
Tetranychus urticae Koch is one of the most common and harmful pests in vegetable production areas. Similar to other countries, control of T. urticae is mainly based on acaricides in Turkey. However, T. urticae rapidly develops resistance and failures in chemical control have occurred frequently. The toxicity of various acaricides was investigated in ten T. urticae populations collected from vegetable crops in Turkey. In addition, populations were screened for the presence of currently known target-site resistance mutations. It was shown that resistance to bifenthrin was the most widespread, but also half of the populations were resistant to abamectin and hexythiazox. Resistance mutations in the voltage-gated sodium channel (VGSC) and chitin synthase 1 were found in various populations. Moreover, for the first time, F1538I and L1024V VGSC mutations were reported for Turkish populations. Mutations that confer resistance to abamectin, bifenazate and METI-I acaricides such as pyridaben were not detected. These results will contribute to the design of an effective resistance management program in Turkey.
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Affiliation(s)
- Emre İnak
- Department of Plant Protection, Faculty of Agriculture, Ankara University, Diskapi, 06110, Ankara, Turkey
| | - Yasin Nazım Alpkent
- Directorate of Plant Protection Central Research Institute, Ministry of Agriculture and Forestry, Yenimahalle, 06172, Ankara, Turkey
| | - Sultan Çobanoğlu
- Department of Plant Protection, Faculty of Agriculture, Ankara University, Diskapi, 06110, Ankara, Turkey
| | - Wannes Dermauw
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium
| | - Thomas Van Leeuwen
- Laboratory of Agrozoology, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
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11
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Li XY, Wang YH, Yang J, Cui WY, He PJ, Munir S, He PF, Wu YX, He YQ. Acaricidal Activity of Cyclodipeptides from Bacillus amyloliquefaciens W1 against Tetranychus urticae. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:10163-10168. [PMID: 30200767 DOI: 10.1021/acs.jafc.8b03806] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Bioassay-guided fractionation of the supernatant of the biocontrol strain Bacillus amyloliquefaciens W1 led to the isolation of eight acaricidal cyclodipeptides from the active fractions by column chromatography separation and HPLC purification. The chemical structures of these compounds were identified as cyclo-(Gly-l-Phe), 2, cyclo-(l-Phe- trans-4-OH-l-Pro), 3, cyclo-(Gly-l-Tyr), 4, cyclo-(l-Ala-l-Pro), 5, cyclo-(l-Pro- trans-4-OH-l-Pro), 6, cyclo-(Gly-l-Pro), 7, cyclo-(l-Pro-l-Pro), 8, and cyclo-(l-Tyr- trans-4-OH-l-Pro), 9. Those cyclodipeptides displayed significant acaricidal activities with LC50 values of 13.85-98.24 μM. Cyclo-(l-Tyr- trans-4-OH-l-Pro) (LC50 13.85 μM) was five times more effective than the positive control abamectin (LC50 72.06 μM). The results indicated that the hydroxyl group is an important component. This is the first report on the acaricidal capabilities of cyclodipeptides against Tetranychus urticae. The results revealed that the acaricidal activity of the biocontrol strain B. amyloliquefaciens W1 was dependent on its constituent cyclodipeptides, which have the potential to be safe and environmentally friendly acaricides.
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Affiliation(s)
- Xing-Yu Li
- Yunnan Agricultural University , Kunming 650201 , China
- Microorganism Fermentation Engineer Research Center of Yunnan , Kunming 650217 , China
| | - Yue-Hu Wang
- Key Laboratory of Economic Plants and Biotechnology and Yunnan Key Laboratory for Wild Plant Resources , Chinese Academy of Sciences , Kunming 650201 , China
| | - Jun Yang
- Key Laboratory of Economic Plants and Biotechnology and Yunnan Key Laboratory for Wild Plant Resources , Chinese Academy of Sciences , Kunming 650201 , China
| | - Wen-Yan Cui
- Yunnan Agricultural University , Kunming 650201 , China
| | - Peng-Jie He
- Yunnan Agricultural University , Kunming 650201 , China
| | - Shahzad Munir
- Yunnan Agricultural University , Kunming 650201 , China
| | - Peng-Fei He
- Yunnan Agricultural University , Kunming 650201 , China
- Microorganism Fermentation Engineer Research Center of Yunnan , Kunming 650217 , China
| | - Yi-Xin Wu
- Yunnan Agricultural University , Kunming 650201 , China
- Microorganism Fermentation Engineer Research Center of Yunnan , Kunming 650217 , China
| | - Yue-Qiu He
- Yunnan Agricultural University , Kunming 650201 , China
- Microorganism Fermentation Engineer Research Center of Yunnan , Kunming 650217 , China
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12
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Gong YJ, Chen JC, Zhu L, Cao LJ, Jin GH, Hoffmann AA, Zhong CF, Wang P, Lin G, Wei SJ. Preference and performance of the two-spotted spider mite Tetranychus urticae (Acari: Tetranychidae) on strawberry cultivars. EXPERIMENTAL & APPLIED ACAROLOGY 2018; 76:185-196. [PMID: 30251067 DOI: 10.1007/s10493-018-0295-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 09/06/2018] [Indexed: 06/08/2023]
Abstract
The two-spotted spider mite (TSSM), Tetranychus urticae Koch (Acari: Tetranychidae), is one of the most serious pests of strawberry worldwide. Understanding the preference of TSSM for particular cultivars of strawberry and performance on them helps identify host-plant resistance to this pest mite. In this study, we tested preference, developmental duration, fecundity and population levels of TSSM on 14 strawberry cultivars. TSSM showed strong preference for the Chinese cultivars of Yanxiang, Baixuegongzhu, and Jingtaoxiang. Development of TSSM on the cultivars varied from 32.32 to 36.82 days; it was longest on the cultivars Hongxiutianxiang and Baixuegongzhu, and shortest on Yanxiang, Jingzangxiang, and Darselect as well as on a wild variety (Wuye). TSSM had high fecundity on the cultivars Yanxiang, Taoxun, Hongxiutianxiang, Jingzangxiang, Albion and Baixuegongzhu as well as on Wuye, whereas egg production was lowest on Sweet Charlie, Portola, Akihime, and Benihoppe. After 28 days of plant infestation with 10 pairs of adults, the cultivars Yanxiang, Taoxun, Jingzangxiang, Jingtaoxiang, and Baixuegongzhu had the highest number of mites (> 1000 per plant), whereas mite numbers on Albion and Camarosa were low. The population size of TSSM was correlated with fecundity, but no correlation was found between other preference/performance measures. Our study suggests that a rapid increase of population size of TSSM on cultivars of strawberry is related to high fecundity, and also that there are substantial differences in preference and performance across cultivars.
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Affiliation(s)
- Ya-Jun Gong
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China
| | - Jin-Cui Chen
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China
| | - Liang Zhu
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China
| | - Li-Jun Cao
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China
| | - Gui-Hua Jin
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China
| | - Ary A Hoffmann
- School of BioSciences, Bio21 Institute, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Chuan-Fei Zhong
- Beijing Academy of Forestry and Pomology Sciences, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Peng Wang
- Dow AgroSciences (China) Co., Ltd., Shanghai Branch, Shanghai, 201203, China
| | - George Lin
- TAFS, Dow AgroSciences Taiwan, Pingtung, 90841, Taiwan, China
| | - Shu-Jun Wei
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China.
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13
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Li M, Zhang Y, Ding W, Luo J, Li S, Zhang Q. Effect of acaricidal components isolated from lettuce (Lactuca sativa) on carmine spider mite (Tetranychus cinnabarinus Boisd.). BULLETIN OF ENTOMOLOGICAL RESEARCH 2018; 108:314-320. [PMID: 28803552 DOI: 10.1017/s0007485317000748] [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] [Indexed: 06/07/2023]
Abstract
This study aimed to evaluate the acaricidal activity of lettuce (Lactuca sativa) extracts against carmine spider mites (Tetranychus cinnabarinus Boisd.) and isolate the acaricidal components. Acaricidal activities of lettuce extracts isolated from different parts (the leaf, root and seed) using various solvents (petroleum ether, acetone and methanol) were evaluated with slide-dip bioassay and relatively high median lethal concentration (LC50) values were detected. Acetone extracts of lettuce leaves harvested in July and September were fractionated and isolated with silica gel and thin-layer chromatography. Consequently, acetone extracts of lettuce leaves harvested in July exhibited higher acaricidal activity than those harvested in September, with an LC50 value of 0.268 mg ml-1 at 72 h post-treatment. A total of 27 fractions were obtained from the acetone extract of lettuce leaves harvested in July, and mite mortalities with the 11th and 12th fractions were higher than those with the other 25 fractions (LC50: 0.751 and 1.258 mg ml-1 at 48 h post-treatment, respectively). Subsequently, active acaricidal components of the 11th fraction were identified by infrared, nuclear magnetic resonance and liquid chromatography/mass spectrometry. Five components were isolated from the 11th fraction, with components 11-a and 11-b showing relatively high acaricidal activities (LC50: 0.288 and 0.114 mg ml-1 at 48 h post-treatment, respectively). Component 11-a was identified as β-sitosterol. In conclusion, acetone extracts of lettuce leaves harvested in July might be used as a novel phytogenic acaricide to control mites.
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Affiliation(s)
- M Li
- College of Plant Protection,Southwest University,Chongqing 400716,People's Republic of China
| | - Y Zhang
- College of Plant Protection,Southwest University,Chongqing 400716,People's Republic of China
| | - W Ding
- College of Plant Protection,Southwest University,Chongqing 400716,People's Republic of China
| | - J Luo
- College of Plant Protection,Southwest University,Chongqing 400716,People's Republic of China
| | - S Li
- College of Plant Protection,Southwest University,Chongqing 400716,People's Republic of China
| | - Q Zhang
- College of Plant Protection,Southwest University,Chongqing 400716,People's Republic of China
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14
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Gong YJ, Cao LJ, Wang ZH, Zhou XY, Chen JC, Hoffmann AA, Wei SJ. Efficacy of carbon dioxide treatments for the control of the two-spotted spider mite, Tetranychus urticae, and treatment impact on plant seedlings. EXPERIMENTAL & APPLIED ACAROLOGY 2018; 75:143-153. [PMID: 29594845 DOI: 10.1007/s10493-018-0251-1] [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: 10/16/2017] [Accepted: 03/22/2018] [Indexed: 06/08/2023]
Abstract
To develop a new control method for the two-spotted spider mite (TSSM), Tetranychus urticae, we investigated the effect of controlled atmospheres of carbon dioxide (CO2) on TSSM mortality under different concentrations and treatment periods, and evaluated the impact of treatments on seedlings of five host plants of TSSM. Egg hatching rate of TSSM was reduced to 37.7, 5.4 or 0% after 24 h treatment involving concentrations of 16.7, 33.3 or 50%, respectively. Mobile stages (nymphs and adult) of TSSM were completely controlled after 24 h treatment at concentrations higher than 33.3%. After 4 h at concentrations of 33.3 or 50%, 1st-day survival rate for all mobile stages was 45.3 or 36.0%, respectively, whereas after 8 or 16 h treatments, all values were decreased to zero. Seedlings of four major host plants of TSSM (cucumber, eggplant, rape, green peppers) were damaged to varying degrees after 24 h at the three concentrations, but strawberry, another host plant, was not damaged. Cucumber suffered the most serious damage, resulting in wilting and death. In conclusion, controlled atmospheres of CO2 can kill TSSM, particularly at high concentrations and with long treatment times. It can be used to control TSSM on strawberry, but should be used cautiously on other host plants.
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Affiliation(s)
- Ya-Jun Gong
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China
| | - Li-Jun Cao
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China
| | - Ze-Hua Wang
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China
| | - Xiao-Yi Zhou
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China
| | - Jin-Cui Chen
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China
| | - Ary Anthony Hoffmann
- School of BioSciences, Bio21 Institute, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Shu-Jun Wei
- Institute of Plant and Environmental Protection, Beijing Academy of Agriculture and Forestry Sciences, 9 Shuguanghuayuan Middle Road, Haidian District, Beijing, 100097, China.
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15
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Randall TA, Mullikin JC, Mueller GA. The Draft Genome Assembly of Dermatophagoides pteronyssinus Supports Identification of Novel Allergen Isoforms in Dermatophagoides Species. Int Arch Allergy Immunol 2018; 175:136-146. [PMID: 29320781 DOI: 10.1159/000481989] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 10/05/2017] [Indexed: 11/19/2022] Open
Affiliation(s)
- Thomas A Randall
- Intramural Program, National Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
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16
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Edwards OR, Walsh TK, Metcalfe S, Tay WT, Hoffmann AA, Mangano P, Lord A, Micic S, Umina PA. A genomic approach to identify and monitor a novel pyrethroid resistance mutation in the redlegged earth mite, Halotydeus destructor. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2018; 144:83-90. [PMID: 29463413 DOI: 10.1016/j.pestbp.2017.12.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 12/03/2017] [Accepted: 12/08/2017] [Indexed: 05/24/2023]
Abstract
Resistance mechanisms are typically uncovered by identifying sequence variation in known candidate genes, however this strategy can be problematic for species with no reference data in known relatives. Here we take a genomic approach to identify resistance to pyrethroids in the redlegged earth mite, Halotydeus destructor, a member of the Penthalidae family of mites that are virtually uncharacterized genetically. Based on shallow genome sequencing followed by a genome assembly, we first identified contigs of the H. destructor parasodium channel gene. By linking variation in this gene to known resistant phenotypes, we located a single nucleotide polymorphism in resistant mites. This polymorphism results in a leucine (L) to phenylalanine (F) amino acid substitution in the II6 region (predicted) of the gene (L1024F). This novel mutation has not previously been linked to pyrethroid resistance, although other polymorphisms have been identified in the two-spotted spider mite, Tetranychus urticae at the same locus (L1024V). The sequencing approach was successful in generating a candidate polymorphism that was then validated using laboratory bioassays and field surveys. A high throughput Illumina-based sequencing diagnostic was developed to rapidly assess resistance allele frequencies in pools of mites sourced from hundreds of populations across Australia. Resistance was confirmed to be widespread in the southern wheatbelt region of Western Australia. Two different resistance mutations were identified in field populations, both resulting in the same amino acid substitution. The frequency and distribution of resistance amplicon haplotypes suggests at least two, and probably more independent origins of resistance.
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Affiliation(s)
| | - Thomas K Walsh
- CSIRO, Clunies Ross Street, Canberra, ACT 2601, Australia
| | - Suzanne Metcalfe
- CSIRO, Ecosystem Sciences Precinct, 41 Boggo Rd, Brisbane, QLD 4001, Australia
| | - Wee Tek Tay
- CSIRO, Clunies Ross Street, Canberra, ACT 2601, Australia
| | - Ary A Hoffmann
- School of BioSciences, Bio21 Institute, The University of Melbourne, VIC 3010, Australia
| | - Peter Mangano
- Department of Agriculture and Food Western Australia, 3 Baron-Hay Ct, South Perth, WA 6151, Australia
| | - Alan Lord
- Department of Agriculture and Food Western Australia, 3 Baron-Hay Ct, South Perth, WA 6151, Australia
| | - Svetlana Micic
- Department of Agriculture and Food Western Australia, 444 Albany Highway, Albany, WA 6330, Australia
| | - Paul A Umina
- School of BioSciences, Bio21 Institute, The University of Melbourne, VIC 3010, Australia; Cesar, 293 Royal Parade, Parkville, VIC 3052, Australia
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17
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Sut S, Pavela R, Kolarčik V, Cappellacci L, Petrelli R, Maggi F, Dall'Acqua S, Benelli G. Identification of Onosma visianii Roots Extract and Purified Shikonin Derivatives as Potential Acaricidal Agents against Tetranychus urticae. Molecules 2017. [PMID: 28621748 PMCID: PMC6152756 DOI: 10.3390/molecules22061002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
There is an increasing need for the discovery of reliable and eco-friendly pesticides and natural plant-derived products may play a crucial role as source of new active compounds. In this research, a lipophilic extract of Onosma visianii roots extract containing 12% of shikonin derivatives demonstrated significant toxicity and inhibition of oviposition against Tetranychus urticae mites. Extensive chromatographic separation allowed the isolation of 11 naphthoquinone derivatives that were identified by spectral techniques and were tested against Tetranychus urticae. All the isolated compounds presented effects against the considered mite and isobutylshikonin (1) and isovalerylshikonin (2) were the most active, being valuable model compounds for the study of new anti-mite agents.
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Affiliation(s)
- Stefania Sut
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo, 35121 Padova, Italy.
| | - Roman Pavela
- Crop Research Institute, Drnovska 507, 161 06, Prague 6, Czech Republic.
| | - Vladislav Kolarčik
- Department of Botany, Institute of Biology and Ecology, Faculty of Science, P.J. Šafárik University, Mánesova 23, 04154 Košice, Slovakia.
| | - Loredana Cappellacci
- School of Pharmacy, University of Camerino, Via Sant'Agostino 1, 62032 Camerino, Italy.
| | - Riccardo Petrelli
- School of Pharmacy, University of Camerino, Via Sant'Agostino 1, 62032 Camerino, Italy.
| | - Filippo Maggi
- School of Pharmacy, University of Camerino, Via Sant'Agostino 1, 62032 Camerino, Italy.
| | - Stefano Dall'Acqua
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo, 35121 Padova, Italy.
| | - Giovanni Benelli
- Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy.
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18
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Lu W, Wang M, Xu Z, Shen G, Wei P, Li M, Reid W, He L. Adaptation of acaricide stress facilitates Tetranychus urticae expanding against Tetranychus cinnabarinus in China. Ecol Evol 2017; 7:1233-1249. [PMID: 28303192 PMCID: PMC5306011 DOI: 10.1002/ece3.2724] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 11/17/2016] [Accepted: 12/17/2016] [Indexed: 02/03/2023] Open
Abstract
The two‐spotted spider mite, Tetranychus urticae, and the carmine spider mite, Tetranychus cinnabarinus, are invasive and native species in China, respectively. Compared with T. cinnabarinus, T. urticae has expanded into most parts of China and has become the dominant species of spider mite since 1983, when it was first reported in China. However, the mechanism of the demographic conversion has not been illuminated. In this study, one T. urticae field population and one T. cinnabarinus field population were isolated from the same plant in the same field, and the toxicological characteristics were compared between these two species. Laboratory bioassays demonstrated that T. urticae was more tolerant to commonly used acaricides than T. cinnabarinus. The activities of detoxification enzymes were significantly greater in T. urticae, and the fold changes of enzymes activities in T. urticae were also greater following exposure to acaricides. Furthermore, more metabolism‐related genes were upregulated at a basal level, and more genes were induced in T. urticae following exposure to acaricides. The comparison of proteins and genes between both species led credence to the hypothesis that T. urticae was more resistant to acaricides, which was the reason explaining the expansion of invasive T. urticae against native T. cinnabarinus. Laboratory simulation experiments demonstrated that following the application of acaricides, the composition of a mixed T. urticae/T. cinnabarinus population would change from a T. cinnabarinus‐dominant to a T. urticae‐dominant population. This study not only reveals that T. urticae possesses stronger detoxification capacity than its sibling species T. cinnabarinus, which facilitated its persistent expansion in China, but also points to the need to accurately identify Tetranychus species and to develop species‐specific management strategies for these pests.
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Affiliation(s)
- Wencai Lu
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing College of Plant Protection Southwest University Chongqing China
| | - Mengyao Wang
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing College of Plant Protection Southwest University Chongqing China
| | - Zhifeng Xu
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing College of Plant Protection Southwest University Chongqing China
| | - Guangmao Shen
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing College of Plant Protection Southwest University Chongqing China
| | - Peng Wei
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing College of Plant Protection Southwest University Chongqing China
| | - Ming Li
- Department of Entomology University of California Riverside CA USA
| | - William Reid
- Department of Entomology North Carolina State University Raleigh NC USA
| | - Lin He
- Key Laboratory of Entomology and Pest Control Engineering of Chongqing College of Plant Protection Southwest University Chongqing China
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19
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Ilias A, Vassiliou VA, Vontas J, Tsagkarakou A. Molecular diagnostics for detecting pyrethroid and abamectin resistance mutations in Tetranychus urticae. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2017; 135:9-14. [PMID: 28043338 DOI: 10.1016/j.pestbp.2016.07.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 07/12/2016] [Accepted: 07/20/2016] [Indexed: 06/06/2023]
Abstract
Avermectin and pyrethroid resistance mutations (the G314D and the G326E in the glutamate gated chloride channels, and the F1538I in the voltage gated sodium channel) have been reported in the spider mite Tetranychus urticae, one of the most devastating pests of protected and open field crops worldwide. We developed three TaqMan molecular diagnostic assays for monitoring the presence and frequency of these mutations in T. urticae field populations. The TaqMan assays were validated against known genotypes and subsequently used to monitor the frequency of the resistance mutations in eleven T. urticae populations from Greece and Cyprus, with variable history of avermectin and pyrethroids applications. The frequency of the F1538I pyrethroid resistance mutation largely varied among samples, with highest frequencies (75%-97%) detected in four populations derived from protected and open field crops from Crete and Peloponnesus, low frequencies in three populations (2.5%-11%) from Attiki, Cyprus and Crete and not detected in four populations from Crete, Peloponnesus and Cyprus. The frequency of the abamectin resistance mutations G314D and G326E also varied across populations (from 0 to 100%), showing fixation in two populations (>97.5% for the G314D and 100% for the G326E), originating from rose greenhouses from Greece, low frequencies in three populations (5%-12.5%) also originating from rose greenhouses (Crete, Peloponnesus and Cyprus) and not detected in six populations from protected and open field vegetable crops. The TaqMan diagnostics showed higher resolution in detecting specific alleles in low frequency, compared to massive quantitative sequencing approaches previously employed. They can be used, together with classical bioassays, to support evidence - based insecticide resistance management strategies.
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Affiliation(s)
- Aris Ilias
- Hellenic Agricultural Organisation - "DEMETER", NAGREF - Institute of Olive Tree, Subtropical crops and Viticulture, Department of Viticulture, Floriculture, Vegetable crops and Plant Protection, Heraklion, Greece
| | | | - John Vontas
- Department of Crop Science, Agricultural University of Athens, Greece; Institute of Molecular Biology and Biotechnology, Foundation of Research and Technology, Heraklion, Greece
| | - Anastasia Tsagkarakou
- Hellenic Agricultural Organisation - "DEMETER", NAGREF - Institute of Olive Tree, Subtropical crops and Viticulture, Department of Viticulture, Floriculture, Vegetable crops and Plant Protection, Heraklion, Greece.
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Wu K, Hoy MA. The Glutathione-S-Transferase, Cytochrome P450 and Carboxyl/Cholinesterase Gene Superfamilies in Predatory Mite Metaseiulus occidentalis. PLoS One 2016; 11:e0160009. [PMID: 27467523 PMCID: PMC4965064 DOI: 10.1371/journal.pone.0160009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 07/12/2016] [Indexed: 12/13/2022] Open
Abstract
Pesticide-resistant populations of the predatory mite Metaseiulus (= Typhlodromus or Galendromus) occidentalis (Arthropoda: Chelicerata: Acari: Phytoseiidae) have been used in the biological control of pest mites such as phytophagous Tetranychus urticae. However, the pesticide resistance mechanisms in M. occidentalis remain largely unknown. In other arthropods, members of the glutathione-S-transferase (GST), cytochrome P450 (CYP) and carboxyl/cholinesterase (CCE) gene superfamilies are involved in the diverse biological pathways such as the metabolism of xenobiotics (e.g. pesticides) in addition to hormonal and chemosensory processes. In the current study, we report the identification and initial characterization of 123 genes in the GST, CYP and CCE superfamilies in the recently sequenced M. occidentalis genome. The gene count represents a reduction of 35% compared to T. urticae. The distribution of genes in the GST and CCE superfamilies in M. occidentalis differs significantly from those of insects and resembles that of T. urticae. Specifically, we report the presence of the Mu class GSTs, and the J’ and J” clade CCEs that, within the Arthropoda, appear unique to Acari. Interestingly, the majority of CCEs in the J’ and J” clades contain a catalytic triad, suggesting that they are catalytically active. They likely represent two Acari-specific CCE clades that may participate in detoxification of xenobiotics. The current study of genes in these superfamilies provides preliminary insights into the potential molecular components that may be involved in pesticide metabolism as well as hormonal/chemosensory processes in the agriculturally important M. occidentalis.
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Affiliation(s)
- Ke Wu
- Department of Entomology and Nematology, PO Box 11620, University of Florida, Gainesville, FL 32611, United States of America
- * E-mail:
| | - Marjorie A. Hoy
- Department of Entomology and Nematology, PO Box 11620, University of Florida, Gainesville, FL 32611, United States of America
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Kwon DH, Park JH, Ashok PA, Lee U, Lee SH. Screening of target genes for RNAi in Tetranychus urticae and RNAi toxicity enhancement by chimeric genes. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2016; 130:1-7. [PMID: 27155477 DOI: 10.1016/j.pestbp.2015.11.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 11/07/2015] [Accepted: 11/09/2015] [Indexed: 05/09/2023]
Abstract
Due to its rapid development of resistance to nearly all arrays of acaricide, Tetranychus urticae is extremely hard to control using conventional acaricides. As an alternative control measure of acaricide-resistant mites, RNA interference (RNAi)-based method has recently been suggested. A double-stranded RNA (dsRNA) delivery method using multi-unit chambers was established and employed to screen the RNAi toxicity of 42 T. urticae genes. Among them, the dsRNA treatment of coatomer I (COPI) genes, such as coatomer subunit epsilon (COPE) and beta 2 (COPB2), resulted in high mortality [median lethal time (LT50)=89.7 and 120.3h, respectively]. The transcript level of the COPE gene was significantly (F3,9=16.2, P=0.001) reduced by up to 24% following dsRNA treatment, suggesting that the toxicity was likely mediated by the RNAi of the target gene. As a toxicity enhancement strategy, the recombinant dsRNA was generated by reciprocally recombining half-divided fragments of COPE and COPB2. The two recombinant dsRNAs exhibited higher toxicity than the respective single dsRNA treatments as determined by LT50 values (79.2 and 81.5h, respectively). This finding indicates that the recombination of different genes can enhance RNAi toxicity and be utilized to generate synthetic dsRNA with improved RNAi efficacy.
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Affiliation(s)
- Deok Ho Kwon
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea
| | - Ji Hyun Park
- Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea
| | - Patil Anandrao Ashok
- Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea
| | - Unggyu Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea
| | - Si Hyeock Lee
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea; Department of Agricultural Biotechnology, Seoul National University, Seoul 151-921, Republic of Korea.
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Van Leeuwen T, Dermauw W. The Molecular Evolution of Xenobiotic Metabolism and Resistance in Chelicerate Mites. ANNUAL REVIEW OF ENTOMOLOGY 2016; 61:475-98. [PMID: 26982444 DOI: 10.1146/annurev-ento-010715-023907] [Citation(s) in RCA: 171] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Chelicerate mites diverged from other arthropod lineages more than 400 million years ago and subsequently developed specific and remarkable xenobiotic adaptations. The study of the two-spotted spider mite, Tetranychus urticae, for which a high-quality Sanger-sequenced genome was first available, revealed expansions and radiations in all major detoxification gene families, including P450 monooxygenases, carboxyl/cholinesterases, glutathione-S-transferases, and ATP-binding cassette transporters. Novel gene families that are not well studied in other arthropods, such as major facilitator family transporters and lipocalins, also reflect the evolution of xenobiotic adaptation. The acquisition of genes by horizontal gene transfer provided new routes to handle toxins, for example, the β-cyanoalanine synthase enzyme that metabolizes cyanide. The availability of genomic resources for other mite species has allowed researchers to study the lineage specificity of these gene family expansions and the distinct evolution of genes involved in xenobiotic metabolism in mites. Genome-based tools have been crucial in supporting the idiosyncrasies of mite detoxification and will further support the expanding field of mite-plant interactions.
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Affiliation(s)
- Thomas Van Leeuwen
- Department of Crop Protection, Faculty of Bioscience Engineering, Ghent University, B-9000 Ghent, Belgium; ,
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 1090 GE Amsterdam, The Netherlands
| | - Wannes Dermauw
- Department of Crop Protection, Faculty of Bioscience Engineering, Ghent University, B-9000 Ghent, Belgium; ,
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