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| DOI: | 10.4182/amt.2009.G47 |
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| Web URL(s): | https://www.plantmanagementnetwork.org/sub/trial/AMT34/PDF/G/G47.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 formulations 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. G47. |
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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; Larva; Lolium perenne; Popillia japonica; Therapeutic control
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| Abstract/Contents: | "This study was conducted to evaluate new formulations and rates of Bacillus thuringiensis, var japonensis against JB larvae in turfgrass. 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 12.0 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 six repetitions of seven treatments. Infestations were made on 20 Aug 2008 by enclosing 15 male and 15 female JB adults over each ring for seven days of mating and oviposition. Treatment applications were made 26 Aug 2008. Liquid formulations were applied with a pressurized CO2 sprayer coupled with a single nozzle spray wand and a Teejet 8002VS flat fan tip. Granular formulations were evenly applied using a shaker jar. Conditions at time of application were the following: skies partly sunny; wind negligible; air temp 60.0°F; soil temp at 2.0-inch depth 69.0°F. Until the study was rated, rainfall was supplemented with 0.25 inch irrigation if five consecutive days lapsed with <0.10 inches rain on any of those days. Mean daily precipitation was 0.12 inch; mean daily air temp (min/max) 39.5/76.0°F; and mean daily soil temp at 2.0-inch depth (min/max) 41.5/80.0°F. Grub populations were evaluated on 21 Oct 2008 by destructively searching the soil in each arena. Data were transformed by log(x+0.5) before ANOVA, followed by LSMeans separation using Student's t. Artificial infestations produced a mean population of 8.1 JB larvae/ft2 in the untreated check. In addition to Merit 0.5G, three treatments caused significant suppression of JB larvae with respect to the untreated check. Among treatments, both 60150 ES and 60157 5G 3.0 lb/acre were as effective as Merit 0.5G in the suppression of JB larvae. A significant positive rate response was exhibited by 60157 5G because the lower rate was linked to lower control (42.0%) than the high rate (97.5%). Although not significant, the same trend for a positive rate response was exhibited by 60157 10G." |
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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 formulations for the early curative control of Japanese beetle larvae in turfgrass, 2008. Arthropod Manage. Tests. 34:p. G47. |
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| DOI: 10.4182/amt.2009.G47 |
| Web URL(s):
https://www.plantmanagementnetwork.org/sub/trial/AMT34/PDF/G/G47.pdf
Last checked: 11/11/2016
Requires: PDF Reader |
| 
MSU catalog number: SB 951 .A1 I48 |
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