Seedcorn Maggot and Wireworm Control with Seed Treatments, 1996

Experimental plots were established on the UI Research and Extension Center, Kimberly, ID. Beans were planted 31 May and furrow irrigated. The soil type was Portneuf silt loam that had been in Timothy grass seed production 3 yr previous to rotation into beans. Three treatments and one untreated check plot were replicated four times in a RCB design. Each plot was 8 rows by 25 ft long. Seed was obtained from the UI Foundation Seed stock and treated with the compounds used in this study prior to planting. Damage was evaluated by destructively sampling the center 10 ft of rows 2, 3, 6 and 7. One sample row was sampled per wk by removal of the seed by hand and then examining for characteristic damage by SCM and wireworm WW. Number of seeds or seedlings damaged by each insect was recorded along with the total number of seed or seedlings examined to calculate percent damage. Stand counts were also taken at these times.