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1 October 2012 Potential of Natural Products and their Derivatives to Control Formosan Subterranean Termites (Isoptera: Rhinotermitidae)
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Abstract

Twenty-nine natural products and their derivatives were tested for both contact and vapor toxicity against the Formosan subterranean termite, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae). Five natural products at 0.5% (wt:wt) in petri dish contact assay caused 100% mortality within 3 d. In vapor form, only three chemicals (styrallyl alcohol, 2-phenyl-2-propanol, and l-carvone) at 0.25 µl/liter air caused >90% mortality in 3 d when tested on exposed termites. However, when termites were shielded by wood and soil, only one chemical, tetrahydrocarvone at 25 µl/liter air caused 100% mortality in 2 d. Preliminary test with termites in carton nests, exposed to tetrahydrocarvone vapor in desiccators, resulted in an average of 98.6% mortality in 7 d. With further development in the method of delivery, this chemical may be very useful in fumigating confined areas of termite infestation.

Ashok Raina, Robert Bedoukian, Chris Florane, and Alan Lax "Potential of Natural Products and their Derivatives to Control Formosan Subterranean Termites (Isoptera: Rhinotermitidae)," Journal of Economic Entomology 105(5), 1746-1750, (1 October 2012). https://doi.org/10.1603/EC10229
Received: 18 June 2010; Accepted: 1 June 2012; Published: 1 October 2012
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