Abstract
Abstract Sites near Aurora and Lake Andes, SD were chosen to evaluate Furadan 4F applied post-emergence to corn in comparison of at-plant applications and standard granular insecticide compounds. Insecticide treatments included at-planting applications (Counter 15G, Furadan 15G, and Lorsban 15G) using a 7 to 9 inch band, and Furadan 4F broadcast applied post-emergence at cultivation. All treatments were made at 1.0 lb(AI)/acre. Experimental design was a RCB replicated 4 times. Individual treatment plots consisted of single 50 ft long rows spaced 38 inches apart. Insecticide granules were applied with modified, ground-driven Noble metering units mounted on a specially adapted Kinze 4-row corn planter. At-plant granular treatments were banded in front of the furrow-closing wheels, and incorporated by the wheels and drag chains. Collection of these beetles were made weekly throughout the July and August peak emergence period. Data were analyzed using SAS’s General Linear Models (GLM) procedure with total emergence (per cage) means compared with DMRT.
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