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This experiment was conducted at the Virginia Tech Southern Piedmont Agricultural Research and Extension Center, Blackstone, VA to evaluate various foliar insecticides for GPA and TFB control on fluecured tobacco. Tobacco 'NC 297' was transplanted into experimental plots on 25 Jun. Plots, 4 × 40 ft (1 row × 22 plants), were separated by single untreated guard rows. Fertilization, cultural practices and weed and disease control conformed to recommendations of the Virginia Cooperative Extension. Five treatments and an untreated check were established in a RCB design with four replications. Normal production practices were followed for weed and disease control, and fertilization. However, this test was transplanted about a month later than normal due to excessive soil moisture. Treatments were applied as foliar sprays using a CO2-pressurized backpack sprayer that delivered 22 gpa at 50 psi through three TX-10 nozzles/row on 12 Aug. Temperatures during application ranged from 82 to 84 oF, the wind speed was 3 mph, and the skies were clear. The first rain after application was 0.31 inches on 18 Aug, 6 DAT. GPA on four upper leaves and adult TFB were counted on 10 plants/plot and THW on 20 plants/plot were counted 1 d before treatment and at 3, 7 and 14 DAT. Data were analyzed by ANOVA and significantly different means were separated by WD (k ratio = 100) (P ≤ 0.05). Before analysis, GPA and TFB counts were transformed to Log (X+1) and THW were transformed to the square root (x + 0.5). Actual means are presented in the tables.

APHID, FLEA BEETLE AND HORNWORM CONTROL ON FLUE-CURED TOBACCO WITH TM-44401, 2003