Testing of inhibitory effects of para-dichlorobenzene on the Indian meal moth, Plodia interpunctella Hübner, especially on larval invasion into and adult oviposition on food containers

Abstract

Invasion of food containers by first-instar larvae through a pinhole was inhibited by repellent activity of para-dichlorobenzene placed in the food containers. Oviposition by the adults on the surface of the containers was also greatly reduced by the presence of the chemical. The testing methods may be used for detecting repellent activity of chemicals on this speceis as well as on other pest insects.