Author： Medina P. Budia F. Estal P. Del Adán A. Viñuela E.
Publisher： Taylor & Francis Ltd
ISSN： 1360-0478
Source： Biocontrol Science and Technology, Vol.14, Iss.3, 2004-05, pp. : 261-268
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Abstract
All the developmental stages of Chrysoperla carnea (Stephens) were treated with fipronil using different modes of exposure under laboratory conditions. Eggs were dipped in an aqueous range of concentrations and no effects were recorded, except at the highest concentration. Pupae treated topically on the silk cocoon moulted to healthy adults, without any deleterious effects on their reproduction. In contrast, larvae and adults were killed by the compound, irrespective of the mode of treatment, even at rates below the maximum field recommended rate in Spain (30 g c.p./ha). Sublethal concentrations of fipronil did not affect the fecundity or fertility of survivors. We conclude that fipronil is very toxic under laboratory conditions to this predatory lacewing.
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