Chemical characterization of pyrolysis liquids from Dyera costulata and evaluation of their bio-efficiency against subterranean termites, Coptotermes curvignathus


Kadir R., Sarif Mohd Ali M., KARTAL S. N. , Elham P., Mohd Ali N. A. , Awang A. F.

EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS, 2021 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume:
  • Publication Date: 2021
  • Doi Number: 10.1007/s00107-021-01732-z
  • Title of Journal : EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS

Abstract

Wood degradation caused by fungi and insects is a major problem for the rubberwood industry. This study evaluated the potential of using pyrolysis liquids (wood vinegar) from Dyera costulata as a natural biocide against termites. The infestation rates of Coptotermes curvignathus on filter paper samples treated with 0.5%, 1.0%, 5.0% and 10.0% of Dyera costulata wood vinegar were observed in laboratory conditions. The effects of D. costulata wood vinegar treatment depended on the concentration. Filter paper samples treated with 10% D. costulata wood vinegar had the highest resistance against C. curvignathus attack, with the lowest relative mass loss, followed in rank order by the 5% and 1% treatments. Results from tests on Hevea brasiliensis wood treated with wood vinegar also showed a similar trend. The results suggest that D. costulata wood vinegar acts as a wood preservative against termites, provided proper concentration is used.