Experiments have been conducted at Manjimup, Western Australia, for the control of insects attacking tobacco. The insects concerned include the leaf miner, stem borer, cutworms, looper caterpillars and grass hoppers.* The insecticides used were lead arsenate, DDT, dieldrin, aldrin and endrin. As applied, i.e., at equal intervals during the growing season and at the strengths used, DDT proved superior to all other treatments
