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| Publication Type:
| Report |
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| Author(s): | Kindler, S. D.;
Spomer, S. M.;
Kamble, S. T. |
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| Title: | Control of annual white grubs in Kentucky bluegrass, 1985 |
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| Source: | Insecticide and Acaricide Tests. Vol. 11, 1986, p. 400-401. |
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| Publishing Information: | Entomological Society of America |
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| Keywords: | TIC Keywords: Poa pratensis; Cyclocephala borealis; Lawn turf; Insecticides; Application methods
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| Geographic Terms: | Pennsylvania |
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| Abstract/Contents: | "This experiment was conducted in a lawn in Lincoln, NE (Lancaster Co.). Thatch accumulation was 0.25 inches and temperature at treatment time (22 Aug) was 79 d F. The lawn had been mechanically aerated 1 h prior to treatment. Grubs were third-instar and damage to the turf was very evident. The experimental design was a randomized complete block with four replications. Individual plots were 1 X 2 ft. Granular insecticides were mixed with clay granules and hand shaken over the plots. Wettable powders and liquid were mixed with water at equivalent rates of 5.445 gal acre and applied with a hand held sprinkling can. Immediately after all treatments were applied, the entire test area was irrigated with an automatic watering system with ca. 0.25 inches of water. Watering was continued on a daily basis (except on rain dates), with ca. 0.25 inches of water applied at each watering. Rainfall from application date to last sampling date was measure in inches on 29 Aug (0.02), 3 Sept (0.01), 4 Sept (0.25), 5 Sept (0.01), 10 Sept (0.20), 12 Sept (0.35), and 13 Sept (0.87). Grub populations were counted 2 wk and 4 wk posttreatment by cutting a 1 ft X 1 ft X 1 inch deep strip with a mechanical sod cutter from each plot on each sampling date, and recording the number of live and dead grubs in the sod strip and in a 3-inch zone below the soil line. Percent control was transformed to arsin before ANOVA: untransformed means are presented in the table. At 2 weeks posttreatment, none of the insecticides provided control which significantly differed (P=0.05) from the untreated. At 4 wk posttreatment, only Oftanol 5G provided control which differed significantly (P=0.05) from the untreated check. No phytotoxicity was observed." |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kindler, S. D., S. M. Spomer, and S. T. Kamble. 1986. Control of annual white grubs in Kentucky bluegrass, 1985. Arthropod Manage. Tests. 11:p. 400-401. |
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