Ruelene® (4.tert-butyl-2-chlorophenyl methyl methyl-phosphoramidate) was orally administered to 3 female sheep at a dosage of 121.5 mg per kg. The cholinesterase (ChE) activity levels of blood plasma and red blood cells (RUC) of the sheep were tested at various times before and after dosage, and its minimum activity was recorded 4 hours after dosage. (ChE) activity levels of yellow-fever mosquitoes, Aedes aegypti (L.), which had fed on the treated sheep were tested concurrently with the sheeps' blood. The activity levels of ChE were correlated to mosquito mortality. Mosquito death first occurred at 33% mosquito ChE activity inhibition and 100% mortality was observed at 56% inhibition. Of the Rocky Mountain wood ticks, Dermacentor andersoni Stiles, which fed on the treated sheep, 80-100% died.
Document Type: Research Article
Publication date: February 1, 1968
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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.