Laboratory and Field Evaluations of Hydramethylnon Bait Formulations for Control of American and German Cockroaches (Orthoptera: Blattellidae)

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Hydramethylnon, an amidinohydrazone pesticide, was evaluated in bait formulations for control of American, Periplaneta americana (L.), and German, Blattella germanica (L.), cockroaches. In German cockroach-infested apartments, 12 small (25 cm2) 1.65% hydramethylnon bait trays per kitchen were required to provide control for 6 months posttreatment. A second field study with German cockroaches confirmed the efficacy of the 12 bait tray per kitchen rate and identified a 1.90% hydramethylnon paste bait formulation as equally effective. When the paste bait was applied at a heavy rate (0.45–0.60 g per kitchen), significantly higher percent control of German cockroaches was achieved. In simulated kitchens, large (56 cm2) bait trays provided 50% mortality of American cockroaches at 1.5 weeks posttreatment and 90% mortality at 3.5 weeks. Vertical placement of the bait trays significantly reduced efficacy.

Document Type: Research Article

Publication date: October 1, 1986

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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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