SOIL INSECTICIDES FOR CONTROL OF THE TUBER FLEA BEETLE, EPITRIX TUBERIS (GENT.), IN THE INTERIOR OF BRITISH COLUMBIA

Abstract

In the interior of British Columbia, single treatments of aldrin, chlordane, dieldrin or heptachlor applied before or soon after planting at 4.0, 7.5, 1.5 and 3.0 pounds of toxicant per acre, respectively, and immediately incorporated into the soil by disking or harrowing were highly effective against the tuber flea beetle. These soil treatments were more reliable, economical and convenient for controlling this pest than were the numerous DDT foliage treatments.