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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: | Evaluation of spinosad, bifenthrin, chlorpyrifos, and experimental formulations for management of black cutworm larvae on creeping bentgrass, 1997 |
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| Section: | Ornamentals
Other records with the "Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 23, 1998, p. 313. |
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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: Agrotis ipsilon; Agrostis stolonifera; Pest control; Insect control; Insecticides; Insecticide evaluation; Bifenthrin; Chlorpyrifos; Experimental products; Pest density; Formulations; Isouron; Application rates
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| Trade Names: | Spinosad |
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| Abstract/Contents: | "Treatment plots were 6 x 8 ft, arranged in a RCB design and replicated 4 times. White PVC cylinders (8-inch diam x 6 inch length) were placed in each replicate and secured in place. One cylinder was placed in each replicate per evaulation period (15 Aug, 17 Aug, and 21 Aug). Ten 0.5- to 0.75-inch black cutworm larve were placed in each cylinder on 12 Aug. Bird netting was placed over the experimental area from 13 Aug through 17 Aug to prevent bird predation. Liquid formulations were applied by using a CO₂ compressed-air sprayer with 4 8002VS TeeJet nozzles mounted on a 6 ft boom, operating at 28 psi, and applied in 363 ml of water/48 ft² or delivering 2.0 gal/1,000 ft]2. At treatment time (14 Aug), the following soil and environmental conditions existed: air temperature, 72° F; soil temperature at 1 inch depth, 76° F; soil temperature at 2 inch depth, 70° F; RH, 69%; amount of thatch, 0.125 inch; soil textural class, sandy loam; soil particle size analysis, 59.7% sand, 30.5% silt, 9.8% clay; soil percent water weight (percent by weight), 19.9%; organic matter, 4.6%; water pH, 7.0; soil pH, 6.9; time of application, early morning; and clear skies. A total of 1.4 inches of rainfall or irrigation was recoreded from 12 Aug through 14 Aug; a total of 0.8 inch of rainfall or irrigation was recored from 14 Aug through 17 Aug; and 1.0 inch of rainfall or irrigation was recoreded from 17 Aug through 18 ?Aug. The area was syringed on an as needed basis from 19 Aug through 21 Aug. Efficacy data was recoreded on 15 Aug, 17 Aug, and 21 Aug by counting the number of black cutworm larvae flushed to the surface within each PVC cylinder by using a soap irritant drench. An average of 9.75 larvae/50 inch² was recoreded on 15 Aug. Seven treatemnts sampled on 15 Aug provided significant reduction; eight treatments sampled on 17 Aug provided significant reduction of black cutworm larvae. 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. 1998. Evaluation of spinosad, bifenthrin, chlorpyrifos, and experimental formulations for management of black cutworm larvae on creeping bentgrass, 1997. Arthropod Manage. Tests. 23:p. 313. |
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