Relative toxicity of fenpyroximate to the predatory mite, Amblyseius womersleyi (Acarina: Phytoseiidae) and the twospotted spider mite, Tetranychus urticae (Acarina: Tetranychidae)

Kim, S.S.; Paik, C.H.

Korean Journal of Applied Entomology 35(3): 266-272


The selectivity index of fenpyroximate to the predatory mite Amblyseius womersleyi and the twospotted spider mite Tetranychus urticae was evaluated. Adult females and eggs of both species were placed on bean leaf discs dipped in several concentrations of fenpyroximate. Fenpyroximate was much less toxic to A. womersleyi than to T. urticae.