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| Web URL(s): | https://www.plantmanagementnetwork.org/sub/trial/amt31/PDF/G/G52.pdf
Last checked: 11/11/2016
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Swier, Stanley R.;
Rollins, Alan |
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| Author Affiliation: | University of New Hampshire, Durham, New Hampshire |
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| Title: | Efficacy of early to mid-spring applications of E2Y45 and Merit for European chafer control, 2005A |
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| Source: | Arthropod Management Tests. Vol. 31, 2006, p. G52. |
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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: Poa pratensis; Trifolium repens; Application timing; Imidacloprid; Rhizotrogus majalis; Pest control; Application rates
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| Abstract/Contents: | "This trial was conducted on a 2.25-inch cut rough area at Hoodkroft Country Club, Derry, NH. Each treatment was replicated three times, in 49-ft2 plots, using a RCB design. Three rates of E2Y45 1.67SC and one rate of Merit 75WP were applied on 7 Apr; six rates of E2Y45 1.67SC and one rate of Merit 75WP were applied on 17 May. The grass was cut 24 h prior to applications, and then every other day, or on an as needed basis. None of the treatments were watered in on 7 Apr, but there was 0.2 inch of precipitation 4 hr after applications. There was no precipitation 24 h prior to 7 Apr applications. For the 17 May applications, all treatments were hand-irrigated to approximately 0.25-inch, and there was no precipitation within 24 h prior to, or after applications. All treatments were applied using a 7-ft boom on a bicycle-type sprayer. The boom was equipped with four 8005 flat-fan pattern spray nozzles, fitted with 50-mesh screens. The materials were delivered with CO2 pressure, at 40 psi. The vol of insecticide and water mix was 2 gal/1000 ft2. The soil type was as follows: texture, loam; sand, 48%; silt, 41%; clay, 11%; organic matter, 7.7%. Weather and soil conditions on 7 Apr were as follows: sky, overcast; wind, light breeze; air temp, 62°F; soil surface temp, 64°F; at 1-inch depth, 60°F; at 2-inch depth, 56°F; pH, 7.1; moisture, 12.0%. Weather and soil conditions on 17 May were as follows: sky, overcast; wind less than 5 mph; air temp, 68°F; soil surface temp, 72°F; at 1-inch depth, 67°F; at 2-inch depth, 61°F; ph, 6.9; moisture, 13.4%. The plots were rated for live third instar EC larvae on 7 Oct by cutting 2 ft2 of turf in each plot, 2-inches deep, using a D-handle turf tool. The turf was then rolled back to reveal the larvae. Data were subjected to ANOVA and means were separated using DMRT (P ≤ 0.05). All treatments applied 7 Apr performed well with no difference among them. E2Y45 1.67SC performed as well as the standard Merit 75WP when applied at 0.25 lb or higher. On 17 May, E2Y45 1.67SC applied at 0.025 lb and 0.05 lb performed poorly. However, performance was excellent at the rates of 0.1 lb to 0.25 lb, equaling the standard Merit 75WP. E2Y45 1.67SC was an excellent preventative insecticide for grub control when applied at the minimum rate of 0.1 lb in this trial." |
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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):
Swier, S. R., and A. Rollins. 2006. Efficacy of early to mid-spring applications of E2Y45 and Merit for European chafer control, 2005A. Arthropod Manage. Tests. 31:p. G52. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/sub/trial/amt31/PDF/G/G52.pdf
Last checked: 11/11/2016
Requires: PDF Reader |
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MSU catalog number: SB 951 .A1 I48 |
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