Hornworm and Budworm Control on Flue-Cured Tobacco, 1983

Tobacco that had been used in a previous study was cut off ca. 6 in. above the soil surface on 29 Jul. and single suckers were encouraged to develop on each plant. Plots, 12-ft (three rows) by 20-ft (12 plants), were separated by single border rows and 5-ft vacant alleys. Plots were arranged in a randomized complete block of four replications. Hornworms and budworms were counted on 11 plants in each plot on 2 Sep. (pretreatraent) and 6 and 15 Sep. Insecticides were applied 3 Sep. Proxol 80 SP, Orthene 75SP, and Dipel WP were mixed with cornmeal to prepare the desired bait formulations. Some bait treatments were applied manually to the bud. Other baits were applied with a manual duster. Foliar treatments were applied with a CO2-powered back-pack sprayer that delivered 10 gal of finished spray/acre through a TX-18 tip.