Control of Lygus Bugs on Carrot Seed Crops with Temik, 1979

‘Chantenay Red Core’ carrots grown for seed in Shano silt loam (XerolIic Camborthids) soil near Hermiston, OR, were sidedressed with Temik at the time of bolting. The granules were injected 3 inches into the soil 5 inches from the plant row on May 16. The plots were rill irrigated within one week of the application. Each of the 4 replications in the randomized complete block design consisted of a plot 12 rows wide by 50 ft long. The rows were 22- and the plants 6 inches apart. Efficacy was determined by counting the number of lygus in 10-sweep samples/plot taken each week from Jun 6 through Jul 30. Phytotoxicity was determined by counting the number of plants in 8, 5-ft row sections in each plot at harvest on Jut 30. The weight and percentage germination of 100-seed subsamples from these same sections was recorded also. The seeds were germinated on moist filter paper in petri dishes in a controlled environment.