The Comparison of Drug Resistance between Western Flower Thrips (WFT) and Thrips Tabaci

摘要

Leaf dipping method is used in this paper to compare the drug resistance of the invasive species western flower thrips and the native thrips tabaci to 6 kinds of insecticides: phoxim, chlorpyrifos, beta-cypermethrin, spinosad, emamectin-benzoate and avermectin.The results showed that the western flower thrips had a higher drug resistance to phoxim, chlorpyrifos and beta-cypermethrin than thrips tabaci, while beta-cypermethrin and avermectin had a good activity against thrips tabaci. Spinosad had the best control effect, with a concentration of 0.5 mg/L, the corrected mortality of these two thrips reached above 90%.