Activity of oil-formulated Beauveria bassiana against Triatoma sordida in peridomestic areas in central Brazil

Resumo

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/cm 2 . Numbers of T. sordida decreased over the next 25 days, after applica- tion 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.

Descrição

Palavras-chave

Field test, Central Brazil, Triatoma sordida, Beauveria bassiana, Peridomestic

Citação

LUZ, Christian; ROCHA, Luiz F. N.; NERY, Gustavo V.; MAGALHÃES, Bonifácio P.; TIGANO, Myrian S. Activity of oil-formulated Beauveria bassiana against Triatoma sordida in peridomestic areas in central Brazil. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 99, n. 2, p. 211-218, Mar. 2004.