Chemical composition and acaricidal properties of deverra scoparia essential oil (Araliales: Apiaceae) and blends of its major Constituents against tetranychus urticae (Acari: Tetranychidae)

Attia, Sabrine;Grissa, Kaouthar Lebdi;Lognay, Georges;Heuskin, Stéphanie;Hance, Thierry;et.al.
(2011) Journal of Economic Entomology — Vol. 104, n° 4, p. 1220-1228 (2011)

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Authors
  • Attia, SabrineUCLouvain
    Author
  • Grissa, Kaouthar LebdiInstitut National Agronomique de Tunisie
    Author
  • Lognay, GeorgesUniversité de Liège, Gembloux Agro-Bio Tech
    Author
  • Heuskin, StéphanieUniversité de Liège, Gembloux Agro-Bio Tech
    Author
  • Mailleux, Anne-CatherineUCLouvain
    Author
  • Hance, ThierryUCLouvain
    Author
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Abstract
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 liter1, respectively. A reduction in fecundity had already been observed for concentrations of 0.064, 0.08, and 0.26 mg liter1 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 0.26mgliter1 (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.
Affiliations
  • Institution iconUCLouvainSST/ELI/ELIB - Biodiversity
  • Institut National Agronomique de TunisieLaboratoire d’Entomologie-acarologie
  • Université de Liège, Gembloux Agro-Bio TechUnité de Chimie analytique

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Attia, S., Grissa, K. L., Lognay, G., Heuskin, S., Mailleux, A.-C., & Hance, T. (2011). Chemical composition and acaricidal properties of deverra scoparia essential oil (Araliales: Apiaceae) and blends of its major Constituents against tetranychus urticae (Acari: Tetranychidae). Journal of Economic Entomology, 104(4), 1220-1228. https://doi.org/10.1603/EC10318 (Original work published 2011)