Comparison of susceptibility to insecticides between Frankliniella occidentalis and Thrips tabaci
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Key Words:Frankliniella occidentalis, Thrips tabaci, insecticide susceptibility
Abstract: The susceptibility of invasive Frankliniella occidentalis (Pergande) and native Thrips tabaci Lindeman to phoxim, chlorpyrifos, betacypermethrin, spinosad, emamectin benzoate and avermectins was compared under laboratory conditions using the dip method.The results indicated that F.occidentalis was significantly more susceptible to phoxim, chlorpyrifos and spinosad than T.tabaci but T.tabaci was more susceptible to beta-cypermethrin and avermectins.In addition, we found spinosad was effective for controlling both F.occidentalis and T.tabaci; the corrected mortality of both these thrips was over 80% at a concentration of 0.5 mg/L active ingredient