Effects of Insecticides and Fungicides on Neoseiulus barkeri（Acari: Phytoseiidae）Collected from Melon and Gerbera Greenhouses

Abstract

We evaluated the effects of 23 insecticides and 9 fungicides on the mite Neoseiulus barkeri（Hughes）collected from melon and gerbera greenhouses. The insecticides nitenpyram, acetamiprid, flufenoxuron, chlorantraniliprole, pyridalyl, acequinocyl, cyenopyrafen, cyflumetofen, and pyflubumide, and the fungicide flutianil＋mepanipyrim had no effect on the survival and fecundity of adult females. In contrast, the insecticides spinosad, spinetoram, abamectin, emamectin benzoate, milbemectin, and fluxametamide, and the fungicide quinoxaline were toxic. The period of residual toxicity on the survival and fecundity of adult females was about 28 days for fluxametamide and less than 4 days for spinosad, spinetoram, abamectin, emamectin benzoate, milbemectin, and quinoxaline.