Autor(es)Perumalsamy, Haribalan; Kim, Nam-Jin; Ahn, Young-Joon

ResumoThe toxicity of several compounds isolated from Asarum heterotropoides root steam distillate to third-instar larvae of Culex pipiens pallens Coquillett, Aedes aegypti (L.), and Ochlerotatus togoi Theobald was examined using a direct contact mortality bioassay. Safrole was the most toxic constituent to Cx. p. pallens and Ae. aegypti larvae, whereas terpinolene was most toxic to Oc. togoi. However, LC(50) values of these three mosquito larvae to both essential oils as well as the remainder of the 26 compounds identified in A. heterotropoides were considerably greater than for fenthion or temephos. However, we suggest that constituents of A. heterotropoides root steam distillate merit further study as potential mosquito larvicides due to global efforts to reduce the level of highly toxic synthetic pesticides in the aquatic environment.

Palavras-ChaveMosquito; Botanical Insecticide; Natural Larvicide; Asarum Heterotropoides; Essential Oil

ImprentaJournal of Medical Entomology, v. 46, n. 6, p. 1420-1423, 2009

DescritoresAedes aegypti - Larvicide

Data de Publicação:2009