Abstract
Abstract A test was conducted at the Burden Research Plantation, LSUAC, Baton Rouge, LA, to determine the efficacy of 15 insecticide treatments for the control of sweetpotato weevil and banded cucumber beetle. Treatments were arranged in a RCB design with four replications. The cultivar ‘Beauregard’ was planted on 18 May. Plots were 3 rows wide (4 ft/row) and 30 ft long. Insecticides were applied on an approximately weekly ba-sis starting two months after transplanting (18, 23 Jul, 1,8, 14, 22, 29 Aug). A CO2-pressurized backpack sprayer was used (30 psi) with a single-row boom (20 inches wide) containing 3 nozzles (Cone Jet sx-10) and calibrated to deliver 25 gpa. Sweetpotatoes were harvested on Sept. 6 and rated for damage. From each plot 25 roots were randomly selected. The number of banded cucumber beetle holes per root, and the presence or absence of weevil damage was noted.
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