Insecticidal control of Agrotis infusa (Boisd.) and Leucania unipuncta (Haw.) in field crops

Abstract

Several species of cutworms and armyworms are recorded in Queensland, and some of these periodically infest crops in plague numbers. Such infestations by Agrotis infusa (Boisd.) and Leucania unipuncta (Haw.) were experienced during the spring of 1952 on the Darling Downs and in neighbouring districts. Field trials were carried out to determine the optimum DDT dosage for commercial control of both pests, and several insecticides were screened against A. infusa.