Pesticide Resistance and Related Mutation Frequencies of Tetranychus urticae in Hainan, China

The two-spotted spider mite, Tetranychus urticae, is an important pest of horticultural crops worldwide and has developed resistance against multiple kinds pesticides. To date, information on the to pesticides inadequate for T. urticae populations in Hainan, south China. In current study, we determined seven five field that were collected cucurbit Hainan 2021. results showed high extremely abamectin bifenthrin medium pyridaben, profenofos, cyflumetofen. However, four either susceptible or had only low bifenazate B-azolemiteacrylic. We also frequencies mutations previously associated with abamectin, pyrethroids, organophosphates, bifenazate, pyridaben; mutation as 100% detected some populations. should facilitate development rational strategies chemical control