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| Publication Type:
| Report |
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| Author(s): | Vittum, P. J. |
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| Author Affiliation: | Department of Entomology, Fernald Hall, University of Massachusetts, Amherst, MA |
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| Title: | Efficacy of halofenozide (a growth regulator) and Merit against European chafer larvae relative to dates of application on a home lawn, 1996 |
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| Section: | Ornamentals
Other records with the "Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 23, 1998, p. 356. |
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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: Lolium perenne; Poa pratensis; Rhizotrogus majalis; Pest control; Insect control; Insecticides; Insecticide evaluation; Pest density; Application rates; Formulations; Halofenozide; Imidacloprid; Application timing
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| Abstract/Contents: | "Halofenozide (RH-0345) and Merit were applied on one of three application dates and tested for efficacy against European chafer larvae on a home lawn at the Suburban Experiment Station, Waltham, MA. The lawn consisted of 30% crabgrass (Digitaria sanguinalis), 30% perennial ryegrass, 20% Kentucky bluegrass, 20% dandelion (Taraxacum offcinale L.), and was mowed at ca. 1.5 inches. Treatment plots were 8 ft, replicated 5 times, arranged in a CRB. Applications were made on 28 Jun, 23 Jul, or 20 Aug. All applications were liquid formulations and were applied by hand with a watering can using 3-4 liters of water per plot. Soil conditions at the study site at time of application were as follows: soil type, silty loam; soil pH 6.2. Plots were watered in with 3-4, 5, or 10-11 gal of irrigation through overhead irrigation immediately after application on 28 Jun, 23 Jul, and 20 Aug, respectively. Product efficacy was evaluated for all treatments on 26 Sep (90, 64, and 36 DAT respectively) by removing 5 cup-cutter plugs (4.25 inch diam) from near the center of each plot, dislodging soil and counting all grubs to a depth of 3 inches. All treatments reduced larval populations signficantly relative to the untreated check, although several treatments (e.g., the lower rates of halofenozide applied in Jun or Jul) failed to provide agronomically acceptable levels of control (ca. 60-80% reduction)." |
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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):
Vittum, P. J. 1998. Efficacy of halofenozide (a growth regulator) and Merit against European chafer larvae relative to dates of application on a home lawn, 1996. Arthropod Manage. Tests. 23:p. 356. |
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