| Popis: |
In Test 1 Temik and Thimet were applied to 6-row, irrigated plots (38 inch row widths), clay loam soil type, which accounted for approximately 0.3 acres each, replicated 4 times on 8 Mar. Applications were made either at-planting with a John Deere Max Emerge planter/applicator and/or side-dressed at bloom stage with a Gandy brand insecticide applicator. In Test 2 Temik at the rate of 3.0 lb(AI)/acre was applied side-dress at bloom. Gandy brand insecticide applicators were used to apply the material to the 4 replicated plots arranged in a randomized complete block. SPW (adults, eggs, immatures, and pupae) on leaves were checked once per wk and counts were based on a laboratory examination of 3 to 5 leaves per plot, 4th leaf from the top of each randomly-selected sampled plant. All counts were recorded as insects per leaf. Sidedress applications were made on May 21, followed 7 days later with an infurrow irrigation of approximately 4 acre-inches of water. Yields were machine harvested with a John Deere brand 2 row spindle harvester. Subsamples were extracted from each plot and ginned for fiber analysis and percent lint. Data were analyzed using Proc Anova of PC-SAS and mean separations with Duncan's Multiple Range Test. |
