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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; Universidade Federal de Goiás. Instituto de Patologia Tropical e Saúde Pública. DMIPP. Goiânia. BR
  • Tai, M. H. H; Universidade Federal de Goiás. Instituto de Patologia Tropical e Saúde Pública. DMIPP. Goiânia. BR
  • Santos, A. H; Universidade Federal de Goiás. Instituto de Patologia Tropical e Saúde Pública. DMIPP. Goiânia. BR
  • Silva, H. H. G; Universidade Federal de Goiás. Instituto de Patologia Tropical e Saúde Pública. DMIPP. Goiânia. BR
Mem. Inst. Oswaldo Cruz ; 103(2): 214-215, Mar. 2008. graf
Article in English | LILACS | ID: lil-480630
ABSTRACT
The effect of relative humidity (43 percent, 75 percent, 86 percent and > 98 percent) on Aedes aegypti eggs treated with Metarhizium anisopliae or water only was tested for up to a six months exposure at 25ºC. Survival of larvae inside eggs was clearly affected by the lowest humidity (43 percent) 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.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Aedes / Humidity / Hypocreales / Insect Vectors Limits: Animals Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal de Goiás/BR

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Full text: Available Index: LILACS (Americas) Main subject: Aedes / Humidity / Hypocreales / Insect Vectors Limits: Animals Language: English Journal: Mem. Inst. Oswaldo Cruz Journal subject: Tropical Medicine / Parasitology Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Federal de Goiás/BR