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| Web URL(s): | https://academic.oup.com/amt/article/24/1/J4/206491/FIELD-EVALUATION-OF-GARD-STARR-PERMETHRIN-40-EC-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): | Summerlin, Bill;
Gold, Roger;
Cook, Jerry |
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| Author Affiliation: | Department of Entomology, Texas A&M University, College Station, TX |
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| Title: | Field evaluation of Gard StarĀ® (permethirin 40% EC) on red imported fire ant (RIFA), 1995 |
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| Section: | Household and structural
Other records with the "Household and structural" Section
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| Source: | Arthropod Management Tests. Vol. 24, 1999, p. 390. |
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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: Pest control; Insect control; Ant control; Insecticides; Mounds; Insecticide evaluation; Application rates; Pest density; Formulations; Comparisons; Solenopsis invicta; Permethrin
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| Abstract/Contents: | "Forty mounds of active RIFA colonies were used to test the efficacy of Gard StarĀ® (permethrin 40% EC) supplied by Y-TEX Corporation, Cosy, WY. Each mound was characterized by activity and mapped before treatment to measure any change in activity or colony movement resulting from treatments. Colonies were determined as active by lightly vibrating a wire flag inserted into each mound and observing ant response for 30 S. Both pre-treatment and post-treatment ant activity was evaluated on a scale of 0-3, with '0' indicating no activity; '1' indicating 10 or fewer ants responding; '2' indicating 11 to 100 ants responding; and '3' indicating more than 100 ants responding. Numbered wooden stakes, color-coded for each test concentration of insecticide, marked all mounds included in the study. Treatments were assigned randomly to mounds, and were arranged in a CRD. Treatments were applied on 12 July between 0800 and 0900 h CDST. Pre-treatment surveys revealed that ants with brood were found in clusters just beneath the crusted surfaces in all mounds. During this time, they would respond to the slightest disturbance of the mounds. Post-treatment surveys to assess ant activity were always made at the same time each day. Conditions at the time of treatment were clear skies, warm air temperature (26Ā°C), and light winds. The ground and vegetation on and around the mounds were dry. Ant activity in all mounds was assessed before treatments. All mounds were active and ants responded immediately to slight vibrations and were given a rating of 3 (fully active). Post-treatment population assessments were made at 1 h, 7, 14, and 30 DAT. Applications of insecticides were made using an 8 L capacity garden sprinkler can containing 4 L of mix per mound. Rates of 0% (check), 0.025%, 0.05% or 0.10% (AI) of Gard StarĀ® (Permethrin 40% EC) were applied to each of 10 mounds. The applications were made holding the sprinkler about 18 inches above the treatment surfaces and sprinkling clockwise from the center of the mound outward to 1 m. Results were analyzed with a Fisher exact probability test. Post-treatment observations at 1 h revealed that all mounds (colonies) showed effects of the sprinkled applications of Gard StarĀ® in each concentration tested, with the exception of two colonies treated with the lowest concentration of insecticide. Small groups of dying ants were visible on the surface of all other mounds. Brood, alates, and queens were seen along with the worker ants. All control colonies were active and were not asversely affected by the application of water (control). All Gard StarĀ® treatments, on all sampling dates, were significantly different (P<0.001) from the check in suppression of ant activity. At 7 DAT, all colonies (mounds) in the check responded to slight vibrations. There were no migrations of ants, and all colonies remained fully active in their established mounds. Mounds that received the Gard StarĀ® treatments at 0.10% (AI) and 0.05% (AI) rates were observed to be inactive because no ants responded to induced vibrations. There was no evidence of colony migrations from these mounds. The Gard StarĀ® treatment at the 0.025% (AI) had two colonies where ants responded almost immediately to induced vibrations in the mounds. In 8 mounds, ants did not respond, and these were rated as inactive. There was no evidence of colony migrations. At 14 DAT, all control mounds were fully active. All treatments still had the scores as at 7 DAT. The two mounds that showed little or no effects from the treatment at 7 DAT were still fully active. All other mounds were rated inactive and each showed signs of deterioration. Thirty DAT, all control colonies remained stable and were easily aroused; all were fully active. The assessments for all treatments were the same as recorded at 7 DAT and 14 DAT. The two colonies that survived treatments with the lowest concentrations of insecticide were still fully active. All mound treatments with Gard StarĀ® significantly reduced RIFA populations during these trials. No phytotoxicity was noted with 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):
Summerlin, B., R. Gold, and J. Cook. 1999. Field evaluation of Gard StarĀ® (permethirin 40% EC) on red imported fire ant (RIFA), 1995. Arthropod Manage. Tests. 24:p. 390. |
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| Web URL(s):
https://academic.oup.com/amt/article/24/1/J4/206491/FIELD-EVALUATION-OF-GARD-STARR-PERMETHRIN-40-EC-ON
Last checked: 02/17/2017
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Notes: Guide Page |
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MSU catalog number: SB 951 .A1 I48 |
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