The 2005 ESA Annual Meeting and Exhibition
December 15-18, 2005
Ft. Lauderdale, FL

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Saturday, December 17, 2005 - 4:54 PM
0986

Antifeedant and toxic properties of plant alkaloids against Formosan subterranean termites

Lixin Mao, lmao@agcenter.lsu.edu and Gregg Henderson, grhenderson@agcenter.lsu.edu. Louisiana State University Agricultural Center, Department of Entomology, 404 Life Sciences Bldg, Baton Rouge, LA

A mixture of alkaloids extracted from a legume and two individual alkaloids of the mixture were tested under choice and no choice conditions against Formosan subterranean termite, Coptotermes formosanus. The chemicals showed antifeedant effect at all tested concentrations (as low as 0.01%). At concentrations of 1.0 % or higher, termites consumed very little filter paper even under no choice conditions. The mixture and one of the individual alkaloid caused high termite mortality at concentration of 5.0 %. Evaluation of the longevity of these chemicals is in progress. The results are promising for developing safe wood treatment agents against termites.


Species 1: Isoptera Rhinotermitidae Coptotermes formosanus (Formosan Subterranean Termite)
Keywords: Antifeedant, Alkaloids