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Abstract
Abstract Selected soil-applied granular insecticides were evaluated for control of aphids in fall-planted canola on a Faceville sandy loam soil near Plains, GA. Six lb of canola seed per acre was planted in 7-inch rows using a small-plot grain drill on 26 Oct. Plots measured 5 × 20 ft. Plots were irrigated immediately after planting. Granular insecticides were applied with Noble insecticide applicators attached to the grain drill. Plant number was measured 21 and 45 days after planting by counting all plants in 2 m of row per plot. Aphids were sampled by counting aphids on 10 or 15 plants per plot at 33, 45, and 87 days after planting. The percentage of aphid infested terminals also was sampled at bloom (6 Mar) by inspecting 100 terminals/plot. Plots were harvested with a small-plot combine on 17 May and yield was adjusted to 8% moisture content.
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