A Gardona-Vapona Mixture for Control of Stored-product Insects in Railway Boxcars

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Adult confused flour beetles, Tribolium confusum Jacquelin duVal, adult granary weevils, Sitophilus granarius (L.), adult lesser grain borers, Rhyzopertha dominica (F.), and Trogoderma inclusum LeConte larvae were exposed in railway boxcars to 3 dosages of a Gardona®: Vapona®, (2-chloro-1-[2,4,5-trichlorophenyl] vinyl dimethyl phosphate) : (2,2-dichlorovinyl dimethyl phosphate) formulation. Following application, some of the Vapona concentrations were monitored.

With few exceptions a 3.78 liter/boxcar application rate provided 80–100% mortality of the test insects. However, all dosages above 0.95 liter/boxcar resulted in a Vapona air concentration above the 1 mg/liter allowed for human exposure.

Document Type: Research Article

Publication date: February 1, 1975

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  • 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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