Studies on codling moth control in the Stanthorpe district, Queensland

Abstract

During the 1958-59 to 1962-63 seasons, nine trials were conducted to determine the value of new insecticides for the control of Cydia pomonella (L.) in apple orchards of the Stanthorpe district. The important materials under test were azinphos-ethyl, azinphos-methyl, carbaryl, carbophenothion, DDT, dioxathion, ethion, lead arsenate, Mesurol and phosphamidon. Treatments were applied according to predetermined programmes for each season. Other sprays, either alone or in combination with the test materials, were used to control diseases and pests other than codling moth. DDT exercised satisfactory control for codling moth in the 1958-59 trial but there was a marked reduction in efficacy in subsequent trials. Azinphos-ethyl, azinphos-methyl, carbaryl and Mesurol were the better treatments in later trials and have been recommended for codling moth control in the Stanthorpe district.