A vertically arranged (8.9 by 7.6 em) wall-mounted trap made of layered, corrugated paper was designed for use in USDA, Animal and Plant Health Inspection Service, Plant Protection and Quarantine detection programs for Trogoderma granarium Everts (khapra beetle). The trap uses a membrane or septa pheromone lure for adult males and wheat germ oil as a larval food attractant. The placement of the pheromone lure directly over a plastic collection tray containing the oil resulted in increased efficiency. Fresh oils of oat, pumpkin seed, and sesame were more attractive to larvae than wheat germ oil, but they became less attractive as the oils aged. The trap caught 3.5 times more larvae in 5 d and 4.9 times more males in 1 d compared with a commercial flat-type trap. A trap jacket with foldout rear flaps was developed to improve entry into the trap, to give direct and guided access to the collection tray, and to allow tight contact with the substrate when the trap is wall mounted with a 2.5-cm square piece of l.6-mm foam tape. Traps mounted on a wall did not work unless flaps were deployed. Traps mounted on a wall and in contact with the floor were most effective, but catch improved when the rear flaps were opened to bridge the gap created by the mounting tape.
Document Type: Research Article
Publication date: October 1, 1989
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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.