Insecticide toxicities to cucumber moths, Diaphania indica (Sasunders) collected from a cucumber greenhouse in Nara Prefecture

Abstract

Nine insecticides were used as treatments against cucumber moth larvae on cucumber leaves. At three days after treatment, all insecticides were found to have high toxicity at commercial concentration, but flubenziamide, chrorantraniliprol, and acetamiprid were found to have low toxicity at 1/10 of commercial concentration. These results suggest that cucumber moths exhibit low susceptibility to two diamides.