Abstract
The wireworm Agriotes obscurus (L.) was con trolled at Lunenburg, Nova Scotia, with insecticides incorporated into the soil. Aldrin or heptachlor at 4 lb. per acre, and lindane at 1.25 lb., each significantly reduced the number of larvae per square foot and increased the yield of dry matter of forage for 3 years after application. A single application of aldrin or heptachlor at 3 lb. per acre resulted in increased yields of oats during the second season after application, and of leguminous forage plants during the third, but potatoes grown immediately after the application were not significantly less injured by wireworms than those grown on untreated check plots.
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