Journal of Medical Entomology (2003) 40, 451-454

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Christian Luz, Luiz F.N. Rocha and Richard A. Humber (2003)
Record of Evlachovaea sp. (Hyphomycetes) on Triatoma sordida in the State of Goiás, Brazil, and its activity against Triatoma infestans (Reduviidae, Triatominae)
Journal of Medical Entomology 40 (4), 451-454
Abstract: A fungal isolate was detected on a dead Triatoma sordida (Stål) collected in a peridomestic area in central Brazil. The fungus belongs to Evlachovaea Borisov and Tarasov, a new genus that was recently described in Russia. The isolate seems to be a third species and the second new and undescribed species from Brazil. The fungus was shown to be active against Triatoma infestans (Klug) third-instar nymphs at a humidity close to saturation. However, activity was reduced at a lower humidity (75%). Values of LC50 varied between 1.1 x 105 and 1.5 x 104 conidia/cm2 treated surface, 15 and 20 d after fungal application and incubation at humidity close to saturation. This new fungus may have a potential for biological control of peridomestic Chagas' disease vectors during the rainy season.
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Database assignments for author(s): Christian Luz, Richard A. Humber

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Triatoma infestans Brazil (south)
Triatoma sordida Brazil (south)
Evlachovaea (anamorphic genus - entomopathogens) Brazil (south)