Detecting acaricide resistance in Tetranychus urticae (Acari: Tetranychidae) collected from strawberry fields in Silifke, Turkey

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Detecting acaricide resistance in Tetranychus urticae (Acari: Tetranychidae) collected from strawberry fields in Silifke, Turkey

Description

Abstract: The resistance status of different Tetranychus urticae (red form) populations collected from strawberry fields in Silifke, Turkey, were determined against abamectin, etoxazole, spiromesifen and tebufenpyrad by bioassay and biochemical methods. According to LC50 values of field and susceptible populations, resistance ratios were found to be 2.39-7.86, 6.80-15.39, 4.61-9.73 and 5.51-12.47-fold for the same acaricide order given above, respectively. The resistance status of T. urticae populations varied based on the location due to different spray histories of each field. Results of the photometric enzyme assay showed that the esterase and the GST enzymes may play an important role in detoxification of these four acaricides in different T. urticae populations.

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