L-lactic acid as a mosquito (Diptera : Culicidae) repellent on human and mouse skin

Autor(es): Shirai, Y; Kamimura, K; Seki, T; Morohashi, M


Resumo: The attraction of Aedes albopictus (Skuse) to hands and forearms of human subjects treated with several concentrations of L-LA solution were studied in a test chamber containing proboscis-amputated mosquitoes. Fewer mosquitoes alighted on L-LA treated human skin than on water-treated control skin. Similar results were found using normal mosquitoes following L-LA and water treatment of mouse skin. The relative repellent effects of L-LA varied with concentration. The minimum repellent concentration was lower than previously reported for human skin. The number of alightments decreased at increasing concentrations of L-LA, demonstrating the absolute repellency oft-LA. Unlike previous reports suggesting that L-LA attracted mosquitoes, our studies using human and mouse skin showed that L-LA exhibited both relative and absolute repellency.


Palavras-Chave: Aedes Albopictus; L-Lactic Acid; Repellency; Alightment; Mosquito Repellent


Imprenta: Journal of Medical Entomology, v. 38, n. 1, p. 51-54, 2001


Identificador do objeto digital: 10.1603/0022-2585-38.1.51


Descritores: Aedes aegypti - Repellent


Data de publicação: 2001