How to get rid of the two spotted spider mites ?
(2014) Revue des Régions Arides — Vol. 35, n° 3, p. 1739-1748 (2014)
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Attiaetal.pdf
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- Abstract
- Two essential oils were tested for their toxicity against eggs and adults of Tetranychus urticae Koch as well as adults of Phytoseiulus persimilis Athias-Henriot, by using a filter paper diffusion bioassay without allowing direct contact. Responses varied according to oil type and dose, and mite species. The chemical analyses with GC-MS and GC-FID revealed that the two oils differed in their most abundant components. The most abundant components in the Citrus oil were linalyl acetate (41.95%), sabinene (18.60%) and linalool (18.14%) whereas pulegone (41.86%) and menthone (28.33%) were most prevalent in the Mentha oil. Mortality and fecundity were measured with 15 oils concentrations ranged from 0.01 to 8μl/l of air. Tetranychid mortality increased with increasing concentrations with LC50 value of 5.39 and 4.09 μl/l for C. aurantium and M. pulegium, respectively. However few mortality was observed in the case of P. persimilis with LC50 value of 0.46 and 0.26 μl/l for C. aurantium and M. pulegium respectively. For both oils a reduction of fecundity was observed at 0.01 μ/l in the case of T. urticae. The essential oils described herein have potential interest as fumigants for the bio-control of T. urticae.
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Citations
Attia, S., Lebdi, K. G., Heuskin, S., Lognay, G., Mailleux, A.-C., & Hance, T. (2014). How to get rid of the two spotted spider mites ? Revue des Régions Arides, 35(3), 1739-1748. https://hdl.handle.net/2078.5/77591 (Original work published 2014)