Penetration of Sized-Particle Barriers by Field Populations of Subterranean Termites (Isoptera: Rhinotermitidae)

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Barriers of seven single-sized and two mixed-sized particles were exposed to field populations of the Formosan subterranean termite, Coptotermes formosanus Shiraki, and the eastern subterranean tennite, Reticu/itermes j/avipes (Kollar) for 1-3 mo. Compared with previous laboratory results, field populations of subterranean tennites were generally more successful in penetration of sand barriers composed of sized particles. Barriers of particles in sizes 2.00-2.36 and 2.36-2.80 mm were least penetrated by soilborne colonies of C. f0T11l0Sall!ls. Three single-sized barriers (1.70-2.00, 2.00-2.36, and 2.36-2.80 mm) and two mixed-sized barriers (1.18-2.80 and 1.70-2.36 mm) were most effective against field populations of R. j/avipes. In areas where both C. formosallus and Reticu/itermes spp. occur, the two single-sized particle barriers (2.00-2.36 and 2.36-2.80 mm) appeared to be the most effective exclusion devices against field populations of these subterranean termites.

Document Type: Research Article

Publication date: December 1, 1992

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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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