Effects of Insecticides on the Larvae of the Acarophagous Ladybird Beetle Stethorus japonicus H. Kamiya (Coleoptera: Coccinellidae)

Abstract

The susceptibility of 19 insecticides to spider mite predators was examined with the second or third-instar larvae of Stethorus japonicus H. Kamiya by using a direct spraying test. Chlorfenapyr and Ethiprole were determined to be harmless and two neonicotinoids (Nitenpyram and Dinotefuran) were determined to be slightly harmful. The use of these insecticides should be recommended in IPM programs to control insect pests in citrus orchards.