Resumen

ARGUETA, ANA L.; VALLE, JAVIER  y  MARINA, CARLOS F.. Ovicidal and larvicidal effects of spinosad in Aedes aegypti (Diptera: Culicidae). Rev. Colomb. Entomol. [online]. 2011, vol.37, n.2, pp.269-272. ISSN 0120-0488.

The ovicidal and larvicidal effects of spinosad were studied in Aedes aegypti treated with concentrations of 0.1, 5 y 10 ppm spinosad (Tracer 480SC) during different periods of exposure at a constant temperature of 25±1ºC. In a frst experiment the ovicidal effects were low (6.6-8.2% of non-eclosion averaged over 12-96h exposure periods), whereas in a second experiment ovicidal effects were moderate (27,9 - 31,9% of non-eclosion in eggs exposed to spinosad suspension of 1-12 weeks old). Mortality of larvae increased significantly with increasing concentration and increasing duration of exposure to this product. Although spinosad has clear applications as a mosquito control product for control of vectors such as A. aegypti, it is clear that its vector control potential resides in its larvicidal effects rather than its ovicidal activity.

Palabras clave : Vector control; Mortality; Toxicity; Dengue.

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