Biological performance of Eucalyptus camaldulensis leaf oils from Thailand against the subterranean termite Coptotermes formosanus Shiraki

The antitermitic activities of leaf oils and their constituents, taken from three clones of Eucalyptus camaldulensis Dehnh. in Thailand, against Coptotermes formosanus Shiraki were investigated in contact and noncontact tests. The termiticidal mechanism was also examined. Antitermitic tests demonstr...

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Bibliographic Details
Published in:Journal of wood science 2009-02, Vol.55 (1), p.41-46
Main Authors: Siramon, P.(Kochi Univ., Nankoku (Japan). Faculty of Agriculture), Ohtani, Y, Ichiura, H
Format: Article
Language:English
Subjects:
ACEITES ESENCIALES
Biomedical and Life Sciences
BOTANICAL PESTICIDES
Characterization and Evaluation of Materials
CONSERVANTES DE LA MADERA
COPTOTERMES FORMOSANUS
ESSENTIAL OILS
Eucalyptus
EUCALYPTUS CAMALDULENSIS
EXTRACTOS VEGETALES
EXTRAIT D'ORIGINE VEGETALE
FEUILLE
Fumigation
HOJAS
HUILE ESSENTIELLE
Isoptera
LEAVES
Life Sciences
Materials Science
Original Article
PESTICIDE D'ORIGINE VEGETALE
PLAGUICIDAS DE ORIGEN VEGETAL
PLANT EXTRACTS
PRODUIT DE PRESERVATION DU BOIS
Termites
Toxicity
Ultrasonic testing
WOOD PRESERVATIVES
Wood Science & Technology
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Summary:The antitermitic activities of leaf oils and their constituents, taken from three clones of Eucalyptus camaldulensis Dehnh. in Thailand, against Coptotermes formosanus Shiraki were investigated in contact and noncontact tests. The termiticidal mechanism was also examined. Antitermitic tests demonstrated that E. camaldulensis leaf oils were both contact toxicants and fumigants to C. formosanus with LCsub(50) values ranging between 12.68 and 17.50 mg/g by the contact method, and between 12.65 and 17.50 mg/ petri dish (100 cubic cm) by the noncontact method. p-Cymene and gamma-terpinene were primarily responsible for the contact toxicity and 1,8-cineole was responsible for fumigation. From the investigation of termiticidal mechanism, E. camaldulensis leaf oils exhibited the inhibition of acetylcholinesterase activity and showed the common symptoms of a neurotoxic mode of action against C. formosanus.
ISSN:1435-0211
1611-4663
DOI:10.1007/s10086-008-0990-4