Airborne residues of chlorpyrifos, propetamphos, and permethrin were measured up to 50 h after broadcast treatment for cat flea, Ctenocephalides felis (Bouché), control in residences. Type of insecticide, time after treatment, ventilation regime, and height above floor significantly affected airborne residues. Before spraying chlorpyrifos, residues were low or undetected. In nonventilated residences, chlorpyrifos residues peaked 0-6 h after treatment at 38 ng/liter, then slowly declined through 50 h. In ventilated residences, chlorpyrifos residues peaked from 2 to 10 h after treatment at 25-27 ng/liter, then declined to 8 ng/liter at 50 h. Propetamphos and permethrin residues in nonventilated residences peaked in 0-2 h at 32-40 and 40-44 ng/liter, respectively. Propetamphos peaked at 12-17 ng/liter at 0-2 h in ventilated residences. Permethrin was not detected in any of the samples in ventilated residences. Maximum airborne concentrations were 74 ng/liter chlorpyrifos, 49 ng/liter propetamphos, and 54 ng/liter permethrin.
Document Type: Research Article
Publication date: December 1, 1995
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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.