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

Nan-Yao Su; Matthew T. Messenger

doi:10.1603/0022-0493-93.2.412

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Nan-Yao Su,¹ Matthew T. Messenger²

¹Ft. Lauderdale Research and Education Center, University of Florida, Institute of Food and Agricultural Sciences, Ft. Lauderdale, FL 33314
²City of New Orleans Mosquito and Termite Control Board, New Orleans, LA 70126

Abstract

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).

Citation Download Citation

Nan-Yao Su and Matthew T. Messenger "Measuring Wood Consumption by Subterranean Termites (Isoptera: Rhinotermitidae) with Digitized Images," Journal of Economic Entomology 93(2), 412-414, (1 April 2000). https://doi.org/10.1603/0022-0493-93.2.412

Received: 20 August 1999; Accepted: 1 October 1999; Published: 1 April 2000