Variation in chemical composition and acaricidal activity against Dermanyssus gallinae of four eucalyptus essential oils

George, David, Masic, Dino, Sparagano, Olivier and Guy, Jonathan (2009) Variation in chemical composition and acaricidal activity against Dermanyssus gallinae of four eucalyptus essential oils. Experimental and Applied Acarology, 48 (1-2). pp. 43-50. ISSN 0168-8162

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Official URL: http://dx.doi.org/10.1007/s10493-008-9225-z

Abstract

The results of this study suggest that certain eucalyptus essential oils may be of use as an alternative to synthetic acaricides in the management of the poultry red mite, Dermanyssus gallinae. At a level of 0.21 mg/cm², the essential oil from Eucalyptus citriodora achieved 85% mortality in D. gallinae over a 24 h exposure period in contact toxicity tests. A further two essential oils from different eucalyptus species, namely E. globulus and E. radiata, provided significantly (P < 0.05) lower mite mortality (11 and 19%, respectively). Notable differences were found between the eucalyptus essential oils regarding their chemical compositions. There appeared to be a trend whereby the essential oils that were composed of the fewer chemical components were the least lethal to D. gallinae. It may therefore be the case that the complexity of an essential oil’s chemical make up plays an important role in dictating the toxicity of that oil to pests such as D. gallinae.

Item Type: Article
Uncontrolled Keywords: Dermanyssus gallinae, poultry red mite, plant-derived product, botanical pesticide
Subjects: C100 Biology
C700 Molecular Biology, Biophysics and Biochemistry
D700 Agricultural Sciences
F100 Chemistry
Department: Faculties > Health and Life Sciences > School of Life Sciences > Applied Sciences
Depositing User: Ellen Cole
Date Deposited: 19 Dec 2011 16:43
Last Modified: 10 Aug 2015 11:44
URI: http://nrl.northumbria.ac.uk/id/eprint/4315

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