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| Publication Type:
| Report |
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| Author(s): | Heller, P. R.;
Walker, R.;
Rowan, M. |
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| Author Affiliation: | Department of Entomology, Pennsylvania State University |
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| Title: | Management of black cutworm and bluegrass webworm with Dursban, Talstar, and experimental formulations on creeping bentgrass, 1999 |
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| Section: | Report: Ornamentals
Other records with the "Report: Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 25, 2000, p. 347-348. |
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| Publishing Information: | Annapolis, MD: Entomological Society of America |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Insecticide evaluation; Formulations; Golf greens; Application rates; Pest density; Agrotis ipsilon; Parapediasia teterrella; Chlorpyrifos; Bifenthrin; Agrostis stolonifera; Insect control; Insecticides
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| Abstract/Contents: | "This experiment was completed on a golf course green maintained at the Penn State Valentine Turfgrass Research Center at University Park to determine the effectiveness of treatments against second and third instar BCW larvae. Treatment plots were 6 x 10 ft, arranged in a RCB design and replicated four times. Granular formulations were applied with a hand-held shaker, and top dressing sand was added to facilitate product distribution. At treatment time (18 Aug), the following soil and environmental conditions existed: air temp, 67 °F; soil temp at 1 inch depth, 65 °F; soil temp at 2 inch depth, 64 °F, RH, 95%; amt of thatch, 0.0625 inch; soil textural class, loam; soil particle size analysis, 36.6% sand, 47.8% silt, 15.6% clay; percent water content (percent by wt), 7.1; organic matter, 3.4%; water pH, 7.0; soil pH, 7.0; time of application, early-morning; and clear skies. The entire experimental area was either irrigated or received natural rainfall as follows: 17-18 Aug, 0.4 inch; 18-19 Aug, 0.25 inch; 20-25 Aug, 2.0 inch; 25-26 Aug. 1.0 inch; and 26-27 Aug, 0.8 inch. Treatments were applied on 18 Aug following artificial infestation of the research area with second and third instar BCW larvae on 17 Aug. An average of 71.4 larvae/60 ft₂ was recorded on 17 Aug. The entire experimental area was covered with bird netting from 17 Aug through 25 Aug. Efficacy data was recorded 20 Aug, 25 Aug, and 31 Aug by counting the number of BCW and SW larvae flushed to the surface within a 1.0 yd ₂ wood frame sampling area using a soap irritant drench of 30 ml Lemon Joy dishwashing detergent in 2 gal water. BCW popluations started to crash 7 DAT. All treatments (Tables 1 and 2) provided significant control of both pests 2 DAT. All treatments provided significant reduction of SW larvae 7 DAT but only six treatments provided significant reduction of BCW larvae 7 DAT. All treatments provided significant reduction of both pests 13 DAT. Phytotoxicity in select replicates was recorded 2 DAT with Dursban 1.34G (1.0lb (AI)/acre, SPG98-001 (0.05 lb (AI)/acre), SPG98-025 (0.1 and 0.2 lb (AI)/acre. SPG98-002 (0.1 lb (AI)/acre. Slight phytoxicity [phytotoxicity] was noted 8 DAT with treatment SPG98-001 applied at 0.05 lb (AI)/acre, and white granules were observed on the green's surface of replicates treated with SPG98-025, respectively at 0.1 and 0.2 lb (AI)/acre." |
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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., R. Walker, and M. Rowan. 2000. Management of black cutworm and bluegrass webworm with Dursban, Talstar, and experimental formulations on creeping bentgrass, 1999. Arthropod Manage. Tests. 25:p. 347-348. |
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