Wood impregnated with metal chelates dissolved in organic media tested for termite resistance

  • Lara Maistrello | lara.maistrello@unimore.it Dip. Scienze Agrarie e degli Alimenti, Univ. di Modena e Reggio Emilia, Italy.
  • Alessia Berzolla CPBC, Università Cattolica del Sacro Cuore, Italy.
  • Irene Macias-Pavon Dip. Scienze Agrarie e degli Alimenti, Univ. di Modena e Reggio Emilia, Italy.
  • Francesca Vignali Dipartimento di Chimica GIAF, Università di Parma, Italy.
  • Giovanni Predieri Dipartimento di Chimica GIAF, Università di Parma, Italy.
  • Elisabetta Chiappini CPBC, Università Cattolica del Sacro Cuore, Piacenza, Italy.

Abstract

Wood manufactured products are subjected to biological decay due to fungi and insects. The use of copper chelates as biocides was proposed, due to their high stability which minimizes copper leaching into the environment. Considering the remarkable effectiveness showed by copper chelates on brown rot fungi, zinc and copper salicylate complexes were prepared in order to have metal chelates soluble in organic media available. The present study aimed at evaluating these metal chelates complexes as preservative agents for wood treatment against termites. Trials were performed on Reticulitermes lucifugus (Rossi) and Kalotermes flavicollis (Fabricius). Results showed that in both termite species wood consumption was significantly lower on Cu-chelates treated samples compared to untreated wood, whereas the wood slices impregnated with Zn-chelates and the organic media alone gave an intermediate response. Interestingly, in one case solvent-impregnated wood was significantly more attractive than untreated wood for both species and further investigations are being carried out to clarify this behaviour.

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Published
2011-08-20
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Keywords:
wood treatment, preservative agents, copper chelates, Kalotermes flavicollis, Reticulitermes lucifugus.
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How to Cite
Maistrello, L., Berzolla, A., Macias-Pavon, I., Vignali, F., Predieri, G., & Chiappini, E. (2011). Wood impregnated with metal chelates dissolved in organic media tested for termite resistance. Journal of Entomological and Acarological Research, 43(2), 277-285. https://doi.org/10.4081/jear.2011.277

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