STUDY 2: Comparison of Residual Herbicide Programs for Dark Tobacco 2007

This experiment compares different weed control methods for dark-fired tobacco by herbicide use for the years 2006-2007. Similar experiments were conducted in both years. There were nine treatments that were replicated four times. Each plot was four rows wide and forty feet in length. Every treatment was applied at rates according to their label in 15 gallons of water per acre. The nine herbicide treatments were applied just prior to setting the tobacco transplants. Treatment No.1 was a 0.375 lb. per acre of sulfentrazone (Spartan 4F) application. Treatment No. 2 was a 1.0 lb. per acre of clomazone (Command 3ME) application. Treatment No. 3 was a combined application of 0.375 lb. per acre of sulfentrazone and 1.0 lb. per acre of clomazone. Treatment No. 4 was a 1.485 lbs. per acre of pendimethalin (Prowl 3.3EC) application. Treatment No. 5 was a combined application of 0.375 lb. per acre of sulfentrazone and 1.485 lbs. per acre of pendimethalin. Treatment No. 6 was a 4.0 lbs. per acre of pebulate (Tillam 6E) application. Treatment No. 7 was a 2.0 lbs. per acre of napropamide (Devrinol 50DF) application. Treatment No. 8 was a combined application of 4.0 lbs. per acre of pebulate and 2.0 lbs. per acre of napropamide. Treatment No. 9 was an untreated control plot. The plots were harvested October 2. Weed control ratings and yields for 2006 and 2007 will be analyzed statistically