Control of Turnip Flea Beetle by Benzene Hexachloride drilled with the Seed

Abstract

IN 1942 we developed powders containing benzene hexachloride for the control of turnip flea beetle by dusting the seedlings. We have since carried out experiments to obtain control by treating the seed. With turnip, swede and kale seed, under moderate to heavy attack, which would have necessitated re-drilling, we have obtained economic control by combine-drilling about 1½ lb. of crude benzene hexachloride per acre in the form of 2 or 3½ per cent powder. Under extremely heavy attack, a single subsequent surface dusting would still be necessary.