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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 Rohmid's RHO345, Scimitar CS, Cruiser, Crymax, and Naturalis-T for management of black cutworm on creeping bentgrass, 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. 349. |
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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: Detergents; Experimental products; Lambda-cyhalothrin; Insect control; Agrotis ipsilon; Agrostis stolonifera; Application rates
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| Abstract/Contents: | "Treatment plots were 6 X 6 ft, arranged in a RCB design and replicated 3 times at University Park, PA. Liquid formulations were applied by using a CO² compressed air sprayer with 4 8002VS TeeJet nozzles mounted on an 6 ft boom, operating at 28 psi, and applied in 272 ml of water/36 ft₂ or delivering 2.0 gal /1,000ft₂. Cruiser was applied by using a CO² compressed sprayer with 4 S.S. CO 7F-VS-5 flood jet mozzles mounted on a 6 ft boom, operating at 28 psi, and applied in 272 ml of water/36ft₂ or delivering 2.0 gal/1,000 ft₂. Treatments were applied on 20 Sep following artificial infestation of the research area with 2nd and 3rd instar black cutworms on 18 Sep. An average of 17/yd₂ cutworm larvae was recorded on 18 Sep prior to treatment. The entire experimental area was covered with bird netting until post-treatment counts wererecorded on 23 Sep. At treatment time (20 Sep), the following soil and environmental conditions existed: air temperature, 48°F; soil temperature at 1 inch depth, 48°F; soil temperature at 2 inch depth, 52°F; RH, 66%; amount of thatch, 0.0625-0.125 inch; soil textural class, loam; soil particle size analysis: 33.65% sand, 46.2% silt, 20.2% clay, soil moisture (oven dry weight), 24.9%; organic matter, 3.2%; water pH, 7.0; soil pH, 6.8; time of application, early morning; and clear skies. Cruiser treatments were irrigated in with 1 liter of water/replicate immediately after treatment. Post-treatment counts were recorded 3 DAT, 10 DAT, and 13 DAT (respectively 23 Sep, 30 Sep, 3 Oct) by counting the number of black cutworm larvae flushed to the surface within a 1.0 yd₂ wood frame sampling area using a soap irritant drench of 30 ml Lemon Joy™ dishwashing detergent in 2 gal of water. Cool, wet weather conditions might have affected the performance of alternative formulations of Cruiser and Crymax. Six treatments sampled on 23 Sep provided significant reduction of black cutworm larvae. No significant reduction of black cutworm larvae was observed on 30 Sep and 3 Oct in any treatment. Black cutworm populations collapsed on 24 Sep as a result of heavy bird predation. 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. Evaluation of Rohmid's RHO345, Scimitar CS, Cruiser, Crymax, and Naturalis-T for management of black cutworm on creeping bentgrass, 1996.. Arthropod Manage. Tests. 22:p. 349. |
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