Full TGIF Record # 55134
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Publication Type:
i
Report
Author(s):Heller, P. R.; Walker, R.
Author Affiliation:Department of Entomology, Pennsylvania State University, University Park, PA
Title:Management of scarab white grubs with single and split applications of bifenthrin 0.3% ME, oftanol 21, dursban pro, and dylox 6.2G on a low maintenance turfgrass area, 1996
Source:Arthropod Management Tests. Vol. 22, 1997, p. 382-383.
Publishing Information:Annapolis, MD: Entomological Society of America
# of Pages:2
Keywords:TIC Keywords: Insect control; Popillia japonica; Cyclocephala borealis; Phyllophaga; Maladera castanea; Application methods; Split applications; Bifenthrin; Isofenphos; Chlorpyrifos; Trichlorfon; Low maintenance; Fine fescues; Application rates
Abstract/Contents:"The turfgrass area consisted primarily of fine fescue (80%) and weeds (20%) in Lewistown, PA. Treatment plots were 8 x 6 ft, arranged in a RCB design and replicated 3 times. Granular formulations were applied with a hand-held shaker, and top dressing sand was added to facilitate product distribution. Liquid formulations were applied with a CO₂ compressed air sprayer with 4 8004VS TeeJet nozzles mounted on a 6 ft boom, operating at 28 psi, and applied in 726 ml of water/48 ft² or delivering 4 gal/1000 ft². At the 1st treatment time (5 Sep), the following soil and environmental conditions existed: air temperature, 81°F; soil temperature at 1 inch depth, 78°F; soil temperature at 2 inch, 72°F; RH, 79%; amount of thatch, 0.0625 inch; soil textural class, silt loam; soil particle size analysis: % sand, 14.6; % silt, 59.5; % clay, 25.9; organic matter, 3.3%; 34.5% soil moisture (oven dry weight); water pH, 7.0; soil pH, 6.0; application time, mid-morning; and skies overcast. Immedately after treatment the experimental area was irrigated wtih 0.18 inch followed by 0.20 inch of rainfall. At the 2nd treatment time (19 Sep), the following soil and environmental conditions existed: air temperature 67°F; soil temperature at 1 inch depth, 64°F; soil temperature at 2 inch, 64°F; RH, 62%; amount of thatch, 0.0625 inch; soil textural class, silt loam; soil particle size analysis: % sand, 14.6; % silt, 59.5; % clay, 25.9; organic matter, 3.3%; 34.5% woil moisture (oven dry weight); waterr pH, 7.0; soil pH, 5.8; application time, mid-morning; and clear skies. Immediately after treatment the experimental area was irrigated in with 5 gal of water/48 ft² with a hand-held sprinkling can. Post-treatment counts were made on 4 Oct. Three ft² sod samples were randomly taken from each replicate, and thetotal number of scarab white grubs/ft² was recorded. An average of 6.0 grubs/ft² was recorded onk 25 Aug. The post-treatment population of scarab white grubs consisted of 76.9% Japanese beetle, 3.1% Asiatic garden beetle, 16.9% Northern masked chafer, and 3.1% May/June beetle. Japanese beetle grubs samplled on 25 Aug were primarily first instars. Oftanol, Dylox, and Dursban provided significant control of all scarab white grub species and Japanese beetle grubs alone. Bifenthrin 0.3% ME (high rate) significantly reduced JB grubs alone. No phytotoxicity was noted."
Language:English
References:0
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Heller, P. R., and R. Walker. 1997. Management of scarab white grubs with single and split applications of bifenthrin 0.3% ME, oftanol 21, dursban pro, and dylox 6.2G on a low maintenance turfgrass area, 1996. Arthropod Manage. Tests. 22:p. 382-383.
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