Pest Management Science (2004) 60, 514-520

Dimitrios P. Papachristos, Katerina I. Karamanoli, Dimitrios C. Stamopoulos and Urania Menkissoglu-Spiroudi (2004)
The relationship between the chemical composition of three essential oils and their insecticidal activity against Acanthoscelides obtectus (Say)
Pest Management Science 60 (5), 514-520
Abstract: The chemical composition of the essential oils isolated from various parts of three Greek aromatic plants (Lavandula hybrida Rev, Rosmarinus officinalis L and Eucalyptus globulus Labill) collected at different seasons was determined by GC/MS analysis. The insecticidal action of these oils and of their main constituents on Acanthoscelides obtectus (Say) adults was evaluated and their LC₅₀ values were estimated. All essential oils tested exhibited strong activity against A. obtectus adults, with varying LC₅₀ values depending on insect sex and the composition of the essential oils. A correlation between total oxygenated monoterpenoid content and activity was observed, with oxygenated compounds exhibiting higher activity than hydrocarbons. Among the main constituents, only linalyl and terpinyl acetate were not active against A obtectus, while all the others exhibited insecticidal activity against both male and female adults, with LC₅₀ values ranging from 0.8 to 47.1 mg litre^-1 air. An attempt to correlate the insecticidal activity to the monoterpenoid's structure is presented, and the difference in sensitivity between male and female individuals is also explored.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Dimitrios P. Papachristos, D.C. Stamopoulos, Urania Menkissoglu-Spiroudi

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Acanthoscelides obtectus		Greece