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| Publication Type:
| Report |
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| Author(s): | Held, D.;
Potter, D. A.;
Williamson, C.;
Keathley, C.;
Kunkel, B. |
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| Author Affiliation: | Department of entomology, S-225 Agric. Sci. Bldg. N., University of Kentucky, Lexington, KY |
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| Title: | Control of white grubs with Halofenozide (RH-0345), 1995 |
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| Section: | Ornamentals
Other records with the "Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 22, 1997, p. 376. |
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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: Loam soils; Sod; Comparisons; Insect control; Popillia japonica; Cyclocephala lurida; Halofenozide; Festuca arundinacea; Isazophos; Imidacloprid; Application rates; Formulations
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| Abstract/Contents: | "This test was conducted in turf-type tall fescue at the University of Kentucky Spindletop Farm, near Lexington. The turf was on a Maury silt loam soil (pH = 6.4) with negligible thatch. Plots (4 X 6 ft; 2 ft untreated borders) were arranged in a RCB, with 4 replications. The turf was treated on 27 Jul, during flight of JB. The soil population consisted mostly of eggs, with some 1st instars. Granular formulations were preweighed, mixed with dry sand, and applied by gloved hand. Liquid applications were applied at 50 gal/acre using a low volume, CO₂ sprayer equipped with 4 Spraying System 8004 Tee Jet nozzles that delivered 2109 g pressure per cm². Each plot was syringed with about 1/8 inch of water within 5 min after application, and the whole site received 3/4 inch irrigation as soon as the last treatment was applied. Conditions during application were 88°F with winds < 10 mph. There was 0.23 inch of rainfall on 26 Jul, the day before the test. There was no additional rain until 5 Aug, when 1.78 inch fell. Plots were sampled on 14 Sep. A 3 X 1.5 ft strip, about 3" deep, was cut from the center of each plot with a motorized sod cutter. The sod was rolled back and broked apart, and all grubs present were counted and identified. Grub densities in control plots averaged about 13 per sample (3/ft²) at the time of sampling. The distribution of species was 64% JB and 36% SMC. Most grubs were 3rd instars. A relatively light beetle flight in 1995, together with very dry summer conditions contributed to generally low grub densities throughout Kentucky. Nevertheless, the pattern of efficacy of RH-0345 is clear. The granular formulations of RH-0345 was at least as effective as the 2 SC formulation. Triumph 4E, a short-residual organophosphate for which some residual activity has been claimed, also provided significant control even though it was applied in late July, before most of the eggs hatched. This test indicated that RH-0345 applied during the beetle flight will provide significant residual control of grubs. There was no evidence of phytotoxicity from any treatment." |
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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):
Held, D., D. A. Potter, C. Williamson, C. Keathley, and B. Kunkel. 1997. Control of white grubs with Halofenozide (RH-0345), 1995. Arthropod Manage. Tests. 22:p. 376. |
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