Activity of oil-formulated Beauveria bassiana against Triatoma sordida in peridomestic areas in Central Brazil.
Field tests were carried out during the rainy season of 2001/2002 in São Luís de Montes Belos, Goiás, Brazil, to evaluate the potential of the entomopathogenic fungus, Beauveria bassiana, against peridomestic Triatoma sordida. An oil-water formulation of the isolate CG 14 (Embrapa) was applied in triatomine infested hen houses of four farms at a final concentration of 10(6) conidia/cm2. Numbers of T. sordida decreased over the next 25 days, after application of the fungus, and B. bassiana developed on dead insects in one hen house. A high number of B. bassiana colonies was detected in substrates collected in treated hen houses 24 h after application of CG 14. In the following three months the presence of B. bassiana declined to values found before treatment.
Luz
Christian
C
Instituto de Patologia Tropical e Saúde Pública, Caixa Postal 131, 74001-970 Goiânia, GO, Brasil. wolf@iptsp.ufg.br
Rocha
Luiz F N
LF
Nery
Gustavo V
GV
Magalhães
Bonifácio P
BP
Tigano
Myrian S
MS
D000818:Animals; D001203:Ascomycota; D001938:Brazil; D009821:Oils; D010572:Pest Control, Biological; D012621:Seasons; D013997:Time Factors; D014224:Triatoma / Q000382:microbiology*
D009821:Oils