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| Publication Type:
| Report |
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| Author(s): | Reinert, James A.;
Maranz, Steven J. |
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| Author Affiliation: | Texas A&M University Research & Extension Center |
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| Title: | Evaluation of Deltamethrin granules for individual mound control of red imported fire ant in residential landscapes, 1995 |
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| Section: | Ornamentals
Other records with the "Ornamentals" Section
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| Source: | Arthropod Management Tests. Vol. 21, 1996, 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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| Abstract/Contents: | "Fall applications of granular Deltamethrin were applied to individual mounds of RIFA in residential turf on 14 Nov, 1995 in Dallas, TX. Material was applied with either a hand held shaker over the mound (including a 6 inch perimeter area around the mound) or with a drop spreader delivering either 2 or 3 lb per 1000 ft² over a 4 ft² area encompassing the mound. Each chemical treatment was washed in with 1 gal of water per mound. Diazinon 5G was used as the standard control and both a water check (1 gal of water sprinkled over each mound) and an untreated check were included. All treatments were replicated on 12 isolated mounds. Mound activity was assessed the day before treatments and 3-d, 1-wk, and 2-wk posttreatment ratings were taken. Mound activity was determined by stomping hard (4-5 times) on the soil or turf ca 1 ft from the mound in a circle around each mound. For the final rating at 2 wk, each colony was also excavated to a depth of ca. 8 inches with a small shovel to determine mound activity. If no live ants were found, the colony was considered dead. The percentage mortality provided by each chemical treatment was determined and the means were separated using exact confidence intervals calculated from binomial distribution (Steel & Torrie. 1960. Principles and Procedures of Statistics. McGraw-Hill Book Co., Inc.). All treatments provided increasingly better control in time, with the highest rate of deltamethrin providing 100% control by the 2-wk rating. The Diazinon standard provided 90.9% control but failed to control one RIFA mound. All other treatments provided 66.7% control by the 2-wk evaluation. The 4 tablespoon rate of deltamethrin (58.3% at 3-d) and to a lesser extent the 1 tablespoon rate stimulated significant RIFA colony entrance relocation within 4 inches to 2 ft from the treated area. Many of these colonies, however, were inactive at the end of the experiment. Cooler day and night time temperatures may have slowed chemical activity as compared to higher temperature during the summer." |
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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):
Reinert, J. A., and S. J. Maranz. 1996. Evaluation of Deltamethrin granules for individual mound control of red imported fire ant in residential landscapes, 1995. Arthropod Manage. Tests. 21:p. 368. |
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