Toxicity of insecticides to Kanzawa Spider Mite, Tetranychus kanzawai Kishida, on Strawberry in Nara Prefecture

Abstract

Toxicities of 21 insecticides for Tetranychus kanzawai Kishida collected from a strawberry field in Nara Prefecture were investigated. Corrected mortality rates of these insecticides, except malathion, were almost 100%. Chemical control of T. kanzawai was inferred as possible by spraying these insecticides.