Abstract
Abstract Ten insecticide treatments were evaluated for control of CSPW in winter canola at the Bledsoe Research Farm near Griffin, GA. Canola was planted on 12 Oct in 7 inch rows with a grain drill. Treatments were applied at 50% bloom on 31 Mar and 8 d later at full bloom using a tractor-mounted, CO2-powered sprayer (40 psi) equipped with 003 flat-fan nozzles which delivered 21.5 gal/acre. Plots measured 30 × 30 ft and were arranged in a RCBD with 4 replications. CSPW adults were sampled at 0 (pretreatment), 2, 7, 10 and 16 DAT (days after 31 Mar) by taking 8 sweeps per plot with a 15-inch diam sweep-net. The percentage of CSPW infested pods was measured by inspecting 200 pods/plot on 27 May. The center 2 drill passes were harvested on 2 Jun with a small-plot combine. Grain weighi and test weight were measured, and yields were adjusted to 8% moisture content.
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