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Resistance incidence and presence of resistance mutations in populations of Tetranychus urticae from vegetable crops in Turkey

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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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Acknowledgements

We would like to thank to Dr. Ralf Nauen (Bayer CropScience) and Prof. Dr. Recep Ay (Isparta University of Applied Sciences) for providing GSS as a reference strain. This work was supported by the Research Foundation Flanders (FWO) [Grants G009312 N and G053815 N], the Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program under Grant Agreement No 772026 (Polyadapt) and Grant Agreement No 773902 (SuperPests). WD is a post-doctoral fellow of the Research Foundation Flanders (FWO).

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Correspondence to Thomas Van Leeuwen.

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İnak, E., Alpkent, Y.N., Çobanoğlu, S. et al. Resistance incidence and presence of resistance mutations in populations of Tetranychus urticae from vegetable crops in Turkey. Exp Appl Acarol 78, 343–360 (2019). https://doi.org/10.1007/s10493-019-00398-w

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  • DOI: https://doi.org/10.1007/s10493-019-00398-w

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