Constituents and termiticide potential of some wood extracts against Coptotermes heimi (Wasmann) (Isoptera: Rhinotermitidae)

Authors : Khalid Zamir RASIB, Ayesha AIHETASHAM

Pages : 0-0

Doi:10.16970/ted.94447

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Publication Date : 2016-06-21

Article Type : Research Paper

Abstract :Wood extractives are one of the main reasons for the resistance of wood to termite attack. A study was carried out to determine the chemical constituents of wood extractives from Pinus roxburghii Sargent , Morus alba L. and Eucalyptus camaldulensis Dehnh against Coptotermes heimi insert ignore into journalissuearticles values(Wasmann); under laboratory conditions in Forman Christian College University insert ignore into journalissuearticles values(Lahor, Pakistan); in June 2015. Gas chromatography-mass spectrometry of wood extractives of P. roxburghii detected 1,2 - benzenedicarboxylic acid, mono insert ignore into journalissuearticles values(2-ethylhexyl); ester and octadecanoic acid insert ignore into journalissuearticles values(methyl ester);. Hexadecanoic acid insert ignore into journalissuearticles values(methyl ester); and 1-methyl-3-insert ignore into journalissuearticles values(1-methylethyl);-benzene were present in M. alba in addition to the compounds present in P. roxburghii and in E. camaldulensis 1,2-benzenedicarboxylic acid, mono insert ignore into journalissuearticles values(2-ethylhexyl); ester and β-phellandrene were also present. Based on the feeding activity, wood extracts were arranged in descending order of preference; P. roxburghii > M. alba >E. camaldulensis . Extracts of P. roxburghii, M. alba and E. camaldulensis proved repellent at higher concentrations, with tunneling activity almost fully inhibited. So these could prove useful in developing a soil barrier to block termite activity and serve as a replacement to synthetic chemicals.
Keywords : Barrier, Eucalyptus camaldulensis, extractives, Morus alba, Pinus roxburghii, wood

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