SciELO - Scientific Electronic Library Online

 
vol.15 número1Composición y riqueza de insectos y arañas asociados a plantas florecidas en sistemas agrícolas urbanosIdentificación y caracterización de seis aislados pertenecientes al género Bacillus promisorios para el control de Rhizoctonia solani Künh y Sclerotium rolfsii Sacc. índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

  • No hay articulos citadosCitado por SciELO

Links relacionados

  • No hay articulos similaresSimilares en SciELO

Compartir


Fitosanidad

versión On-line ISSN 1818-1686

Resumen

CASTELLANOS GONZALEZ, Leónides et al. Effect in vitro of Seven Chemical Fungicides on Beauveria bassiana (Bals.) Vuil. Fitosanidad [online]. 2011, vol.15, n.1, pp.31-38. ISSN 1818-1686.

The effect of seven fungicides on the entomopathogen fungus Beauveria bassiana strain LBb-1. (Bals) Vuil.) was studiedin vitro with fungicides concentrations of 10, 100, 200, 500, 1000 and 2000 mg L_1. The inhibition of fungus colony growth, the effect on spore production capacity and conidia germination were evaluated. DL-50 and the DL- 95 of fungicide tebuconazol were considered below 10 mg L_1. DL-50 for difenoconazol was considered in 30.45 mg L_1, for mancozeb it was 161.49 mg L_1, for folpet it was 398.92 mg L_1 and for azoxystrobin it was 1463.11 mg L_1. DL-50 for copper oxide and zineb were > 2000 mg L_1. DL-95 for difeconazol was considered as 1019.04 mg L_1, while for the rest of the fungicides it was considered above 2000 mg L_1. Tebuconazol was classified as toxic for Beauveria bassiana by the OILB scale, while the rest were classified as lightly toxic. The seven studied fungicides were classified as very toxic for the fungus according to their T value, and they were not compatible with this. Conidia germination of Beauveria bassiana were not observed in none of tebuconazol, difenoconazol, mancozeb, azoxystrobin and folpet concentrations assayed, while in front of zineb and copper oxide they germinated up to 1000 mg L_1 and 2000 mg L_1, respectively.

Palabras clave : fungicides; entomopathogen fungi; toxicity; Beauveria bassiana.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons