A PLUM VOLATILE, 1-NONANOL: AN OPPOSITIONAL DETERRENT FOR CODLING MOTH

Codling moth, Cydia pomonella (L.), is a major pest of apples, pears, and certain stone fruits and tree nuts. Alternatives to conventional insecticides are needed to manage codling moth infestations in the field and after harvest. In an earlier evaluation of codling moth ovipositional behavior on stone fruits, “Queen Ann” plums were found to be highly acceptable (Yokoyama and Miller 1988). We present preliminary testing of plum fruit volatiles for effect on the ovipositional behavior of codling moth, with emphasis on the ovipositional deterrent activity of 1-nonanol.