Toxicity and Repellency of Potting Soil Treated with Bifenthrin and Tefluthrin to Red Imported Fire Ants (Hymenoptera: Formicidae)
Authors: OI, DAVID H.; WILLIAMS, DAVID F.
Source: Journal of Economic Entomology, Volume 89, Number 6, December 1996 , pp. 1526-1530(5)
Publisher: Entomological Society of America
Abstract:The LC50 and LC90 of bifenthrin in potting soil for female alates of the red imported fire ant, Solenopsis invicta Buren, were 1.1 and .5.2 ppm, respectively. For tefluthrin, the LC50 and LC90 were 8..5 and 19.0 ppm, respectively. These results may provide a basis for setting minimum residue levels for the enforcement of quarantine regulations. Pots filled with soil treated with either bifenthrin or tefluthrin at the label rate of 2.5 ppm were exposed to small colonies of S. invicta without altemative nesting sites. After 48 h, 6% of the bifenthrintreated pots and 24% of the tefluthrin-treated pots were considered infested under quarantine standards. When exposure was lengthened to 2 wk, all pots were uninfested. Implications for the imported fire ant quarantine program are discussed.
Document Type: Research Article
Publication date: December 1, 1996
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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