Effects of botanical acaricides on Tetranychus urticae and compatibility with the predatory mite Amblyseius swirskii

ARCHIVES OF PHYTOPATHOLOGY AND PLANT PROTECTION(2023)

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摘要
The evaluation of biorrational products to control the two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), is of primary importance in the agriculture sector. In this study, we evaluated the effects of commercial botanical acaricides (BAs) on T. urticae and its predatory mite Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae). In the laboratory, T. urticae was exposed to acaricide-immersed leaves and A. swirskii to acaricide-coated glass vials. In the greenhouse, potted eggplants infested with mites were sprayed with different BAs. In the laboratory, Zea mays oil-based and Glycine max oil-based BAs caused more than 95% and 80% mortality of adults after 48 h of application and caused also 100% mortality of eggs. Residual exposure of A. swirskii adults to the BAs caused 45-60% mortality. In the greenhouse, these BAs caused more than 50% decrease in the population of T. urticae for 21 d.
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关键词
Biorational acaricides,phytophagous mite,mite management
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