Persistence and pathogenicity of a native isolate of Leptolegnia chapmanii against Aedes aegypti larvae in different anthropic environments

The oomycete Leptolegnia chapmanii has been identified as a potential control agent of the primary vector of dengue, Aedes aegypti. In our assays, the persistence and pathogenicity of a native isolate of L. chapmanii decreased over time regardless of location. However, the mortality of Ae. aegypti l...

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Published inBiocontrol science and technology Vol. 25; no. 2; pp. 238 - 243
Main Authors Rueda Páramo, Manuel E., López Lastra, Claudia C., García, Juan J.
Format Journal Article
LanguageEnglish
Published Taylor & Francis 01.02.2015
Subjects
Aedes aegypti
biological control
entomopathogen
Leptolegnia chapmanii
oomycete
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Summary:The oomycete Leptolegnia chapmanii has been identified as a potential control agent of the primary vector of dengue, Aedes aegypti. In our assays, the persistence and pathogenicity of a native isolate of L. chapmanii decreased over time regardless of location. However, the mortality of Ae. aegypti larvae was significantly lower (p < 0.05) in containers located outside without sun protection (89% at first week and 9% at sixth week) compared with the containers located indoors (97% at first week and 42% at sixth week) and outside with shade (89% at first week and 29% at sixth week) possibly because of exposure to sun radiation.
ISSN:0958-3157
1360-0478
DOI:10.1080/09583157.2014.967177