Dimethoate dipping of tomatoes against Queensland fruit fly, Dacus tryoni (Froggatt)

Abstract

Dipping of tomatoes for 3 min. in a solution of dimethoate of 425 mg/litre strength was shown to be effective against infestations of Queensland fruit fly. An efficacy standard of no survivors in 30 000 individuals treated was achieved; dimethoate residues were below the relevant maximum residue limit of 1 mg/kg, and no taint was produced in green or ripe fruit.