Specific features of development of spider mite Tetranychus urticae Koch resistance to acaricide Floramite® (Bifenazate)

Currently, chemical method is deemed the most effective for plant protection against two-spotted spider mite Tetranychus urticae Koch. However, pest resistance when using chemicals for a long time remains among the main challenges. Rather short list of insectoacaricides approved for greenhouse farming in Russia aggravates the problem, since effectiveness of pest resistance control via rotation of pesticides decreases. One more thing is imported propagating material of ornamental crops infested by spider mites resistant to commonly used pesticides. Bifenazate is being successfully applied in different countries for phytophagous mite control. This work is the first rationale for the use of a novel acaricide Floramite® (bifenazate, 240 g/l) against spider mites in Russia. Our objective was to estimate the rate of Floramite®-resistance formation and cross-resistance to most used insectoacaricides in laboratory spider mite lines which are highly resistant to commonly used insectoacaricides...