Abstract
Dieldrin emulsifiable concentrate, applied through sprinkler irrigation systems at the rate of 2 or 2.5 pounds of toxicant per acre and incorporated into the soil by disking or harrowing, effectively reduced tuber flea beetle damage in the interior of British Columbia. Similar treatments of aldrin emulsifiable concentrate applied at the rate of 4 pounds of toxicant per acre were much less effective. Colorimetric and bioassay analyses indicated that mechanical incorporation was necessary because no appreciable amount of toxicant penetrated below the top inch of soil even when a large amount of irrigation water was applied.
Publisher
Canadian Science Publishing
Subject
Horticulture,Plant Science,Agronomy and Crop Science