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| Web URL(s): | https://academic.oup.com/amt/article/25/1/G33/111203/IMPACT-OF-FORMULATION-AND-APPLICATION-DATE-ON
Last checked: 02/17/2017
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Notes: Guide Page |
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| Publication Type:
| Report |
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| Author(s): | Power, K. T.;
Grewal, P. S. |
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| Author Affiliation: | Department of Entomology, O.A.R.D.C./O.S.U., Wooster, OH |
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| Title: | Impact of formulation and application date on efficacy of halofenozide for the control of Japanese beetle larvae on turfgrass, 1999 |
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| Section: | Reports: Ornamentals
Other records with the "Reports: Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 25, 2000, p. 368. |
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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: Grub control; Insecticide evaluation; Pest density; Application timing; Application rates; Poa pratensis; Popillia japonica; Halofenozide; Larva; Insect control; Insecticides
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| Abstract/Contents: | "In this Study, two halofenozide formulations on fertilizer were compared with the standard Mach-2 2SC formulation for efficacy against the JB. All three formulations were applied at 1.5 lb (AI)/acre of active to plots on 5 Aug and 8 Sep. The study was located on a lawn of the Ohio Agricultural Research and Development Center campus in Wooster, Ohio. The plots were 3 X 5 ft (0.9 x 1.5 m) and arranged in a RCB replicated four times. The fertilizer formulations were applied with a shaker jar and the standard Mach-2 2SC was applied with a CO₂ sprayer and Teejet^D]T^D]M8015 nozzles at 40 psi (2.8 kg/cm²) that delivered a volume of 4 gal/1000 ft² (1,628 liter/ha). The plots received no post-treatment irrigation. The site conditions were: 100% Kentucky bluegrass, no thatch, level. Environmental conditions for the 5 August treatments were as follows: JB larvae - first and second instars present; turf - dry, 2.75 inches (7 cm) ht; soil - moist, 78°F at 1 inch (2.5 cm) deep and 73°F at 3 inches deep (7.6 cm); weather - mostly sunny, 78°F, 6 mph (9.7 km/h) wind. Environmental conditions for the 8 Sep treatments were as follows: JB larvae - second instar and third instars present; turf - dry, 2.75 inches (7 cm) height; soil - moist, 75°F at 1 inch (2.75 cm) deep and as follows: JB larvae - second instar and third instars present; turf - dry, 2.75 inches (7 cm) height; soil - moist, 75°F at 1 inch (2.5 cm) dep and 72°F at 3 inches deep (7.6 cm); weather - sunny, 82°F, 5 -12 mph (8-19 km/hr) gusting wind. Applications were made between the high wind gusts. A caging technique was used to ensure JB oviposition into the plots. Three cylinders 8 inch (20.3 cm) in diam by a 6 inch (15.3 cm) ht were inserted into the plots. Thirty JB adults, measureed volumetrically were placed and confined in each cylinder on 8 Jul (48% /) and 15 July (53%). After each caging, the adults were fed fresh apple slices coated with brewers yeast. Cylinders were removed 14 days after the initial caging. Efficacy data taken on 30 September (48 and 22 DAT) were based on the number of live larvae in three samples of 8 inches (20.3cm) in diam centered on the cage/cylinder locations of each plot. Analysis of variance was done on the transformed (log₁0) plot totals and means separated by LSD test at P=0.05. The standard Mach-2 2SC applied on 5 Aug provided 97% control of the JB grubs (Table 1). The efficacy of the other halofenzide formulations was significantly less than that of Mach-2 2SC applied on 5 Aug provided 97% control of the JB grubs (Table 1). The efficacy of the other halofenzide formulations was significantly less than that of Mach-2 2SC. The only other treatment that reduced grub survival compared with the check was the Shaws fertilizer applied on 5 Aug. Efficacy of the standard formulation of Mach-2 2SC declined significantly when applied on 8 Sep as compared with the 5 August application. Effectiveness of all other applied on 8 Sep was less that the 5-Aug applications, but these differences were not significant at the P=0.05. These results indicated that the fertilizer formulations were less effective than the standard formulation and early applications of halofenozide are more effective than late application. The efficacy decline of the late application of halofenozide is most likely due to the fact that many of the grubs had reached the third instar by the 8 Sep applications. No phytotoxicity was observed in any of the treatments." |
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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):
Power, K. T., and P. S. Grewal. 2000. Impact of formulation and application date on efficacy of halofenozide for the control of Japanese beetle larvae on turfgrass, 1999. Arthropod Manage. Tests. 25:p. 368. |
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| Web URL(s):
https://academic.oup.com/amt/article/25/1/G33/111203/IMPACT-OF-FORMULATION-AND-APPLICATION-DATE-ON
Last checked: 02/17/2017
Requires: PDF Reader
Access conditions: Item is within a limited-access website
Notes: Guide Page |
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MSU catalog number: SB 951 .A1 I48 |
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