Combined Residues of Dasanit and Its Three Metabolites Applied to Chinese Cabbage for Control of Root Maggot, 1977-78

Dasanit 15% G and 6 SC were each applied to Chinese cabbage at rates of 1, 2, and 4 oz ai/1000 ft-row at the Yakima, WA research location and at rates of 2 and 4 oz ai/1000 ft-row at the Puyallup, WA experiment station in the crop years of 1977 and 1978. The granules were incorporated into the soil over the row in 6-in band widths at planting time; the SC was applied 30 days later as a spray directed at the base of the plants. There were 4 replications of each treatment. The laboratory procedure used for sampling, extraction, and cleanup of the extract is available on request.