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| DOI: | 10.4182/amt.2009.G46 |
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| Web URL(s): | https://www.plantmanagementnetwork.org/sub/trial/AMT34/PDF/G/G46.pdf
Last checked: 11/11/2016
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Olmstead, Daniel;
Peck, Daniel C. |
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| Author Affiliation: | Olmstead: New York State Agricultural Experiment Station, Cornell University, Geneva, NY |
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| Title: | Bacillus thuringiensis at different watering rates for the early curative control of Japanese beetle larvae in turfgrass, 2008 |
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| Section: | Ryegrass (perennial)
Other records with the "Ryegrass (perennial)" Section
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| Source: | Arthropod Management Tests. Vol. 34, 2009, p. G46. |
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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: Bacillus thuringiensis; Biological insecticides; Insect control; Irrigation rates; Larva; Lolium perenne; Popillia japonica; Therapeutic control
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| Abstract/Contents: | "This trial was conducted to evaluate optimal post-application watering rates required to control JB larvae with a new formulation of Bacillus thuringiensis, var japonensis. Testing was done in a turf plot maintained at the NYS Agricultural Experiment Station (Geneva, NY). The site had been renovated and reseeded to perennial ryegrass in May, and maintained at a mowing ht of 3.5-4.0 inches. Evaluation units were PVC arenas (diameter 12 inches, depth 4.0 inches) placed in the ground so that the upper lip was level with the soil surface. Arenas were arranged in a RCB design with four repetitions of eight treatments. Infestations were made on 4 Aug 2008 by enclosing 15 male and 15 female JB adults over each ring for seven days of mating and oviposition. Products were evenly applied using a shaker jar on 19 Aug 2008. Post-application irrigation was applied with a pressurized CO2 sprayer coupled with a single nozzle spray wand and a Teejet 8002VS flat fan tip. Conditions at time of application were the following: skies partly sunny; wind negligible; air temp 71.0°F; soil temp at 2-inch depth 78.0°F. Until the study was rated, rainfall was supplemented with 0.25 inch irrigation if five consecutive days lapsed with <0.10 inch rain on any of those days. Mean daily precipitation was 0.13 inch; mean daily air temp (min/max) 39.5/76.0°F; and mean daily soil temp at 2.0-inch depth (min/max) 41.5/82.5°F. Grub populations were evaluated on 21 Oct 2008 by destructively searching the soil in each arena. Data were analyzed by ANOVA, followed by LSMeans separation using Student's t. To further test for an effect of rate (2 and 3 lb/acre) and irrigation (0.125, 0.25 and 0.5 inch) a 2-factor ANOVA was performed without the untreated check and Merit treatments. Artificial infestations produced a mean population of 3.0 JB larvae/ft2 in the untreated check. With only one exception, all treatments caused a significant suppression of JB larvae with respect to the untreated check. Among the insecticidal treatments, however, no significant differences were detected. There was no discernible effect of rate (df=1,17; F=1.46; P=0.24) or irrigation (df=2,17; F=0.75; P=0.49) on the number of JB larvae/ft2." |
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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):
Olmstead, D., and D. C. Peck. 2009. Bacillus thuringiensis at different watering rates for the early curative control of Japanese beetle larvae in turfgrass, 2008. Arthropod Manage. Tests. 34:p. G46. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=159610 |
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| DOI: 10.4182/amt.2009.G46 |
| Web URL(s):
https://www.plantmanagementnetwork.org/sub/trial/AMT34/PDF/G/G46.pdf
Last checked: 11/11/2016
Requires: PDF Reader |
| 
MSU catalog number: SB 951 .A1 I48 |
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