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| Publication Type:
| Report |
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| Author(s): | Power, K. T.;
Shetlar, D. J.;
Niemczyk, H. D.;
Belcher, M. |
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| Author Affiliation: | Department of Entomology, Ohio Agricultural Research and Development Center |
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| Title: | Influence of application dates on the efficacy of RH-0345101 for control of an induced Japanese beetle larval population in turfgrass, Wayne County, Ohio, 1995 |
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| Section: | Ornamentals
Other records with the "Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 21, 1996, 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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| Abstract/Contents: | "The study was located on the lawns of the Ohio Agricultural Research and Development Center at Wooster, Ohio. Applications were made 10 May, 3 Jul, and 14 Aug to plots 3 x 5 ft (0.9 x 1.5 m) arranged in a RCB replicated 4 times. Treatments were applied with a CO₂ sprayer and Teejet™ XR8010VS nozzles at 30 psi (2.19 kg/cm²) pressure that delivered a volume of 3.1 gal/1000 ft² (1262 liter/ha). Each plot received 4.5 gal (17 liters), approximately equal to 1/2 inch (13 mm) posttreatment irrigation, of water using a sprinkling can. The site conditions were: 100J% Kentucky bluegrass, 0-1/4 inch (0-6 mm) loose thatch, level. Environmental conditions at the 10 May treatments were as follows: JB larvae: none present; Turf: dry, 2 1/4 inch (5.7 cm) ht; Soil: moist, 60°F at 1 inch (2.5 cm) and 58°F at 3 inch (7.6 cm); Weather: partly cloudy, 68°F, 3-12 mph wind. Environmental conditions at the 3 Jul treatments were as follows: JB larvae: none present; Turf: dry, 2.5 inch (6.4 cm) ht; Soil : moist, 64°F at 1 inch (2.5 cm) and 3 inch (7.6 cm) depth; Weather: sunny, 67°F, 3-15 mph wind. Environmental conditions at the 14 Aug treatments were as follows: JB larvae: 1^D]st instars present; Turf: dry, 2.25 inch (5.7 cm) ht; Soil: slightly moist, 91°F at 1 inch (2.5 cm) and 86°F at 3 inch (7.6 cm) depth; Weather: sunny, 90°F, 0-12 mph wind. A caging technique was used to insure JB oviposition into the plots. Three cylinders 8 inch (20.3 cm) in diam by 6 inch (15.3 cm) ht were inserted into the plots 19 Jul. Thirty JB adults (>50% ª) were confined in each cylinder, and fed fresh apple slices coated with brewers yeast every 2 days for 14 days. Cylinders were then removed. Efficacy data taken 26 Sep (139, 77, & 43 DAT) were based on the number of live larvae in three samples 12 x 12 inch (30.5 x 30.5 cm) centered over the caging locations in each plot. Analysis of variance was done on plot totals and means separated by LSD test at P = 0.05. All treatments yielded significant and acceptable larval control. Results suggest an application of RH 0345101 made in May, Jun, or Jul targeted for another pest might provide acceptable control of a subsequent grub population. 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):
Power, K. T., D. J. Shetlar, H. D. Niemczyk, and M. Belcher. 1996. Influence of application dates on the efficacy of RH-0345101 for control of an induced Japanese beetle larval population in turfgrass, Wayne County, Ohio, 1995. Arthropod Manage. Tests. 21:p. 349. |
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