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| Publication Type:
| Report |
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| Author(s): | Heller, P. R.;
Walker, R. |
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| Author Affiliation: | Department of Entomology, Pennsylvania State University, University Park, PA |
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| Title: | Suppression of annual bluegrass weevil on a golf course fairway with split applications of chlorphyrifos and experimental formulation, 1996 |
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| Section: | Ornamentals
Other records with the "Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 22, 1997, p. 362. |
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| Publishing Information: | Annapolis, MD: Entomological Society of America |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Poa annua; Insect control; Listronotus maculicollis; Golf fairways; Chlorpyrifos; Experimental products; Poa pratensis; Application rates; Formulations
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| Abstract/Contents: | "The fairway consisted primarily of annual bluegrass (70%) and Kentucky bluegrass (30%) in Bedford County, PA. Applications were made when flowering dogwood was in full bloom. Treatment plots were 6 X 6 ft, arranged in a RCB design and replicated 4 times. Liquid formulations were applied with a CO² compressed air sprayer with four 8004VS TeeJet nozzles mounted on a 6 ft boom, operating at 28 psi, and applied in 272 ml of water/36 ft² or delivering 2 gal water/1,000 ft². At the 1st treatment time (14 May), the following soil and environmental conditions existed: air temperature, 57°F; soil temperature at 1 inch depth, 64°F; soil temperature at 2 inch depth, 60°F; RH, 35%; amount of thatch, 0.25-0.50 inches; soil textural class, loam; soil particle size analysis: 27.4% sand, 46.9% silt, 25.8% clay; soil maoisture (oven dry weight), 46.6%; organic matter, 6.8%; water pH, 7; soil pH, 5.9; application time, mid-morning; and clear skies. The experimental area was irrigated with 0.1 inch 24 hr after treatment. At the 2nd treatment time (31 May), the following soil and environmental conditions existed: application time, late-morning; air temperature, 61°F; soil temperature at 1 inch depth, 64°F; soil temperature at 2-inch depth, 58°F; RH, 48%; amount of thatch, 0.25-0.50 inch; soil textural class, loam; soil particle size analysis: 27.4% sand, 46.9% silt, 25.8% clay; organic matter, 6.8%; soil condition, moist; water pH, 7; soil pH, 5.9; and clear skies. The experiment area was irrigated with 0.1 inch 1 hr after treatment. Post-treatment counts were made on 19 Jun. Annual bluegrass weevil control was evaluated by removing three 4-inch cup cutter sod samples from each replicate and recording the total number of annual bluegrass weevil life stages (larva, pupa, adult) per sample. Totals were then converted to a ft² count. Annual bluegrass weevil adults were observed to be active on golf course fairways, greens, and roughs before treatment. Six treatments provided significant control. No phytotoxicity was noted." |
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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):
Heller, P. R., and R. Walker. 1997. Suppression of annual bluegrass weevil on a golf course fairway with split applications of chlorphyrifos and experimental formulation, 1996. Arthropod Manage. Tests. 22:p. 362. |
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