EVALUATION OF FOLIAR PRODUCTS FOR CONTROLLING INSECT PESTS OF SNAP BEAN, 1999

Abstract

EVALUATION OF FOLIAR PRODUCTS FOR CONTROLLING INSECT PESTS OF SNAP BEAN, 1999: Snap beans were planted on 7 Aug at the Eastern Shore Agricultural Research and Extension Center near Painter, VA. Each plot consisted of two 20-ft long rows spaced 3 ft apart. Plots were flanked by two untreated rows. The experiment had 7 treatments and an untreated check arranged in a RCBD replicated six times. The standard treatment included an initial application of Orthene 75S followed by weekly applications of Capture 2EC. Insecticide applications were made on 13, 20, 27 Sep and 4 Oct using a propane-pressurized backpack sprayer that had a boom equipped with a 3 hollow cone nozzles calibrated to deliver 30 gal of spray/acre at 40 psi. One nozzle was oriented over the top of the row and two were on drops pointing to the sides of the row. The first foliar application was timed to correspond with the initiation of the bloom stage and detection of 5 or more ECB moths per night using a black light trap. On 8 Oct, 100 mature pods were randomly sampled from each plot and inspected for worm (CEW + ECB) and BLB injury. Data were analyzed using the analysis of variance procedure PROC GLM of SAS and treatment means were compared among each other using LSD at P < 0.05. Means were transformed by a log10 (x + 1) function before analysis; however, untransformed means are presented.