ABSTRACT

Bollgard® II was compared to Bollgard® and conventional (i.e. non-Bt) cotton at the Hooker Farm in Jefferson County, AR in order to observe effectiveness against the Heliothine complex and various lepidopterous pests. In the trial Bollgard® II and Bollgard® performed marginally better when compared to conventional cotton with respect to square, bloom and boll damage. Bollgard® II performed significantly better than Bollgard® and conventional cotton with respect to soybean looper defoliation. Bollgard® and Bollgard® II statistically significantly out yielded conventional cotton. Further evaluations of Bollgard® II will be necessary to determine feasibility for Arkansas cotton production.