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Evaluation of tropical wood by-products as a potential source for termite control products

Zaremski Alba, Robert Sylvie, Clément Jean-Luc, Fouquet Daniel. 2001. Evaluation of tropical wood by-products as a potential source for termite control products. In : International Research Group on Wood Preservation Annual Meeting, Nara, Japan, 20-25 May 2001. Stockholm : IRG, 9 p. International Research Group on Wood Preservation Annual Meeting, Nara, Japon, 20 May 2001/25 May 2001.

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Abstract : Termites damaging in houses represent an ever growing threat in Europe, where the phenomenon has accelerated during the last ten years, as well as in the tropics, where infestations are permanent. To fight against this plague, the current methods used, through injection of organochloric or organophosphorized products into the timber structures and walls, are belonging to the past due to the toxicity and harmful consequences of their use on the environment. New techniques were developed and research organisations are still working on minimizing the environmental impacts through the elaboration of new products. Some tropical wood species from French overseas territories (mainly French Guyana), like Ocotea rubra, Licaria canella and Aniba parviflora (Lauracee), contain repellent, antifeeding or toxic substances which might be extracted to obtain molecules to be used for new wood preservatives. CNRS and CIRAD-Forêt are currently elaborating techniques that will allow to discriminate the possible effects of various molecules contained in sawdusts as regards to termites. Both termite species, Heterotermes indicola and Reticulitermes santonensis, have shown different behaviours depending on the wood species. These wood species were consequently classified according to their repulsive, antifeeding or toxic effects against both termite species studied. Considering the results obtained, it would then be worthwhile to use wood wastes from sawmills. Being so, the up-grading of by-products can be the basis for formulations of new wood preservatives with low environmental impacts and still providing durability against termites to wood species with a low natural durability. (Résumé d'auteur)

Mots-clés Agrovoc : Isoptera, Sous-produit d'abattage, Extrait de bois, Écorce, Insecticide d'origine végétale

Classification Agris : K70 - Forest injuries and protection

Auteurs et affiliations

  • Zaremski Alba, CIRAD-FORET-BOIS (FRA)
  • Robert Sylvie, CNRS (FRA)
  • Clément Jean-Luc, CNRS (FRA)
  • Fouquet Daniel, CIRAD-FORET-BOIS (FRA)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/513450/)

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