Measuring Wood Consumption by Subterranean Termites (Isoptera: Rhinotermitidae) with Digitized Images

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A method is described in which consumption by termites of a feeding block composed of 36 thin (2-mm) wooden slats is estimated with a video image analysis. The significant regression between dry wood weight loss and decreased pixel count of digitized images demonstrates that the video image technique may be a useful tool to quantify termite feeding. Time required to measure wood consumption with the video image technique (≈11.5 min per sample) was significantly less than that for the manual method of washing, and weighing wooden blocks damaged by termite feeding (≈21.0 min per sample).

Keywords: Coptotermes formosanus; feeding activity; subterranean termites; video image analysis

Document Type: Research Article

Publication date: April 1, 2000

More about this publication?
  • 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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