Impact of moisture on survival of Aedes aegypti eggs and ovicidal activity of Metarhizium anisopliae under laboratory conditions.

Luz, C; Tai, M H H; Santos, A H; Silva, H H G

Luz, C; Tai, M H H; Santos, A H; Silva, H H G.

Afiliación

Luz C; DMIPP, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, GO, 74001-970, Brasil. wolf@iptsp.ufg.br

Mem Inst Oswaldo Cruz ; 103(2): 214-5, 2008 Mar.

Article en En | MEDLINE | ID: mdl-18425277

RESUMEN

The effect of relative humidity (43%, 75%, 86% and > 98%) on Aedes aegypti eggs treated with Metarhizium anisopliae or water only was tested for up to a six months exposure at 25 degrees C. Survival of larvae inside eggs was clearly affected by the lowest humidity (43%) tested, and eclosion diminished at all humidities after increasing periods of exposure. M. anisopliae showed to have a strong ovicidal activity only at humidity close to saturation. No difference of activity was found between conidia and hyphal bodies tested. This fungus affected larvae inside eggs and has potential as a control agent of this important vector in breeding sites with high moisture.

Asunto(s)

Aedes/microbiología; Humedad; Hypocreales/fisiología; Insectos Vectores/microbiología; Animales; Larva/microbiología; Óvulo/microbiología; Control Biológico de Vectores; Factores de Tiempo

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aedes / Humedad / Hypocreales / Insectos Vectores Límite: Animals Idioma: En Revista: Mem Inst Oswaldo Cruz Año: 2008 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Brasil

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