ORBi: Attia Sabrine - Chemical composition and acaricidal properties of Devera scoparia essential oil (Araliales: Apiaceae) and blends of its major constituents against Tetranychus urticae (Acari: Tetranychidae)

Reference : Chemical composition and acaricidal properties of Devera scoparia essential oil (Aralial...


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Chemistry Life sciences : Environmental sciences & ecology Life sciences : Entomology & pest control
	To cite this reference:	http://hdl.handle.net/2268/116675

Title :	Chemical composition and acaricidal properties of Devera scoparia essential oil (Araliales: Apiaceae) and blends of its major constituents against Tetranychus urticae (Acari: Tetranychidae)
Language :	English
Author, co-author :	Attia, Sabrine [ > > ]
	Grissa, K. L. [ > > ]
	Lognay, Georges [Université de Liège - ULg > Chimie et bio-industries > Chimie analytique >]
	Heuskin, Stéphanie [Université de Liège - ULg > Chimie et bio-industries > Chimie analytique >]
	Mailleux, A.-C. [ > > ]
	Hance, Th. [ > > ]
Publication date :	Sep-2011
Journal title :	Journal of Economic Entomology
Publisher :	Entomological Society of America
Volume :	104
Issue/season :	4
Pages :	1220-1228
Audience :	International
ISSN :	0022-0493
City :	College Park
Country :	MD
Keywords :	[en] essential oil ; Devera scoparia ; Tetranychus urticae ; toxicity ; fecundity
Abstract :	[en] The essential oil of Deverra scoparia Coss. & Durieu was investigated for its acaricidal activity against the worldwide pest twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae). The essential oil was analyzed by fast gas chromatography (GC) and GC-mass spectrometry. The activities of its individual and blended constituents were determined. Our study showed that female mortality increased with increasing D. scoparia oil concentrations, with LD50 and LD90 values at 1.79 and 3.2 mg liter 1, respectively. A reduction in fecundity had already been observed for concentrations of 0.064, 0.08, and 0.26 mg liter 1 D. scoparia essential oil. Ten major components, comprising 98.52% of the total weight, were identiÞed; -pinene was the most abundant constituent (31.95%) followed by sabinene (17.24%) and 3-carene (16.85%). The 10 major constituents of D. scoparia oil were individually tested against T. urticae females. The most potent toxicity was found with -pinene, 3-carene, and terpinen-4-ol. The presence of all constituents together in the artiÞcial mixture caused a signiÞcant decrease in the number of eggs laid by females, at 0.26mgliter 1 (11 eggs), compared with the control (50 eggs). The toxicity of blends of selected constituents indicated that the presence of all constituents was necessary to reproduce the toxicity level of the natural oil.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/116675
DOI :	10.1603/EC10318

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