Full TGIF Record # 159567
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DOI:10.4182/amt.2009.G15
Web URL(s):https://www.plantmanagementnetwork.org/sub/trial/AMT34/PDF/G/G15.pdf
    Last checked: 11/11/2016
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Publication Type:
i
Report
Author(s):Morales, Anuar; Olmstead, Daniel; Peck, Daniel C.
Author Affiliation:Morales: Department of Entomology, New York State Agricultural Experimental Station, Cornell University, Geneva, NY
Title:Preventive control of japanese beetle with imidacloprid and milky spore under artificial and natural infestations, 2007
Section:Bluegrass
Other records with the "Bluegrass" Section
Source:Arthropod Management Tests. Vol. 34, 2009, p. G15.
Publishing Information:Annapolis, MD: Entomological Society of America
# of Pages:2
Keywords:TIC Keywords: Comparisons; Festuca rubra; Imidacloprid; Insect control; Insecticide evaluation; Lolium perenne; Milky disease spores; Poa annua; Poa pratensis; Popillia japonica; Preventive control
Abstract/Contents:"These studies were conducted on natural and artificially infested arenas at the Turf and Landscape Research Center, Cornell University, Ithaca, NY. The turfgrass composition was ryegrass (35%), annual blue grass (19%), fescue (2%) and broadleaf weeds (44%). For natural infestations, six blocks of four 3 Œ 3 m plots were arranged in a RCB design. For artificial infestations, five blocks of arenas (30.5-cm diameter PVC rings) were arranged in a RCB design. Each arena was infested 19 Jul 2007 with 30-40 adult Japanese beetles captured in nearby vane traps; after being caged in rings for seven days, adults were released and the rings were pushed down flush to the soil surface. Applications were made seven days after release. Each study had four treatments consisting of two formulations of imidacloprid (GrubEx and Merit 2F), one formulation of Paenibacillus popilliae Dutky (Milky Spore Powder) and an untreated check. All treatments were watered in with the equivalent of 20 mm, and plots were irrigated every two days with approximately 0.6 mm of water. Treatments in the natural infestations were applied 12 Jul 2007 at 10:30 am and under the following conditions: clear skies, slight breeze; air temperature 25.5°C; soil temperature at 1 inch 21.9°C and 3 inch 23.4°C. Liquid and wettable formulations were applied with a backpack CO2 sprayer calibrated to deliver 2.6 liters of material per 1000 ft2 at 30 psi through two flat-fan TeeJet spray nozzles. Granular formulations were evenly distributed over the test area in their dry state. Treatments in the artificial infestations were applied 2 Aug2007 at 9:30 am and under the following conditions: partially sunny, slight breeze; air temp 26.1°C; soil temp at 1 inch 21.1°C and 3 inch 21.9°C. Liquid products were applied in 2 liters of water with a watering can. Granular formulations were evenly distributed over the test area in their dry state. Natural infestations were rated 29 Oct 2007 by pulling nine 10.16-cm diameter plugs per replicate plot to a depth of approximately 10-cm with a golf course cup cutter. Artificial infestations were rated 9 October 2007 by pulling the entire PVC ring. The no. of grubs per core or arena was recorded. Data were transformed (log[x+1]) to achieve normality; mean no. of grubs per square foot were separated using Tukey's test at P ≤ 0.05; percent control was calculated with respect to the untreated check. Non-transformed means are presented. Mean no. of Japanese beetle larvae in the untreated check was 7.0 and 42.4 grubs/ft2 in the natural and artificial infestations, respectively. In the natural infestations, no larvae were detected in any of imidacloprid treatments, translating to 100% control. Milky spore powder significantly suppressed larval populations by 47.3%. In the artificial infestations, both imidacloprid treatments significantly suppressed grub populations but at a level inferior to natural infestations. Milky spore powder did not suppress Japanese beetle larvae under the conditions of artificial infestations in this experiment. The relatively high density of larvae in the arenas may have influenced the outcome with Milky spore powder, but it is unclear how."
Language:English
References:0
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Morales, A., D. Olmstead, and D. C. Peck. 2009. Preventive control of japanese beetle with imidacloprid and milky spore under artificial and natural infestations, 2007. Arthropod Manage. Tests. 34:p. G15.
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DOI: 10.4182/amt.2009.G15
Web URL(s):
https://www.plantmanagementnetwork.org/sub/trial/AMT34/PDF/G/G15.pdf
    Last checked: 11/11/2016
    Requires: PDF Reader
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MSU catalog number: SB 951 .A1 I48
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