Persistence of Beauveria bassiana (Bals.) Vuill. on the ground over time
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The viability of B. bassiana evaluated through time (3, 8, 41, 95, 148, 218 days) in artificially contaminated soil with 1 mi (108 con/ ml), previously sterilized (SS) or not sterilized (NSS) was investigated under laboratory conditions. The soil was stored in Petri dishes at 25 ± 2°C. In order to evaluate the effect of soil type on the fungus, the Colony Forming Units (CFU) was recovered on SDA and on a selective medium (SM) using the soil dilution píate method. The mean number of viable conidia was calculated and then converted to CFU per g of dried soil. On the SM the fungus was recovered at 148 d (9.5 ± 4.0 x 1W CFU/g) and at 218 d (1.7 ± 1.8 x 103 CFU/g) in NSS. In SS at 148 d, 9.8 ± 2.1 x 103 CFU/g and at 218 d, 9.0 ±6.0 x 102 CFU/g of B. bassiana were recovered. The fungus was not recovered on SDA. During the assay, the mean number of viable conidia declined through time. However, an unexpected temporary in-crease in the number of CFU was observed at 41 d (1.67 x 105 CFU/g in SS on SDA and 8.9 x 105 CFU/g in SS on SM) and at 8 d (7.0 x 104 CFU/g in NSS on SDA and 3.0 x 104 CFU/ g in NSS on SM). The reasons for this increase are yet unknown.
- PATRICIA E. VÉLEZ-A., MARÍA T. GONZÁLEZ-G., ARMANDO RIVERA-M., ALEX E. BUSTILLO-P., MARÍA N. ESTRADA-V., ESTHER C. MONTOYA-R., Characterization of Beauveria bassiana and Metarhizium anisopliae isolates from Cenicafe's collection , Revista Colombiana de Entomología: Vol. 25 No. 2 (1999)
- CLAUDIA P. MARTÍNEZ-D., MARÍA TERESA GONZÁLEZ-G., ALEX E. BUSTILLO-P., ARNUBIO VALENCIA-J., Propierties of amylases from coffee berry borer Hypothenemus hampei (Coleoptera: Scolytidae) , Revista Colombiana de Entomología: Vol. 26 No. 1 (2000)
- ARMANDO RIVERA-M., PAUL D. BRIDGE, ALEX E. BUSTILLO-P., Characterization of isolates of Beauveria bassiana isolated from cofee-berry borer, Hypothenemus hampei , Revista Colombiana de Entomología: Vol. 23 No. 1 (1997)
- MÓNICA DEL PILAR NARVÁEZ-G, MARÍA TERESA GONZÁLEZ-G., ALEX E. BUSTILLO-P., BERNARDO CHAVES-C., ESTHER CECILIA MONTOYA-R., Spores production of Beauveria bassiana y Metarhizium anisopliae isolates in different sustrates , Revista Colombiana de Entomología: Vol. 23 No. 2 (1997)
- DIANA M. CANO-L., FRANCISCO J. SERNA-C., ALEX E. BUSTILLO-P., Anatomic characteristics of a new species of Compsus (Coleoptera: Curculionidae) a pest of citrus in Colombia , Revista Colombiana de Entomología: Vol. 28 No. 1 (2002)
- MARIA ELENA GONZÁLEZ-D., BLANCA FABIOLA VALBUENA-P., ARMANDO RIVERA-M., ALEX ENRIQUE BUSTILLO-P., BERNARDO CHAVES, Viability of the fungus Metarhizium anisopliae in mixture with agrochemicals , Revista Colombiana de Entomología: Vol. 22 No. 1 (1996)
- JUAN CARLOS LARA-G., JUAN CARLOS LÓPEZ-N., ALEX E. BUSTILLO-P., Effect of entomopathogenic nematodes on populations of the coffee berry borer, Hypothenemus hampei (Coleoptera: Scolytidae), in berries on the soil , Revista Colombiana de Entomología: Vol. 30 No. 2 (2004)
- JHON WILSON MEJÍA-M., ALEX E. BUSTILLO-P., JAIME OROZCO-H., BERNARDO CHÁVES-C., Effect of four insecticides and Beauveria bassiana on Prorops nasuta (Hymenoptera: Bethylidae) parasitoid of the coffee berry borer , Revista Colombiana de Entomología: Vol. 26 No. 2 (2000)
- ALEX E. BUSTILLO-P., FRANCISCO J. POSADA-F., PATHOGENICITY OF A Nomuraea rileyi STRAIN FROM BELLO ON LARVAE OF THE FALL ARMY- WORM, Spodoptera Frugiperda , Revista Colombiana de Entomología: Vol. 12 No. 1 (1986)
- ELSA JEANNETH PÉREZ-L., MARÍA TERESA GONZÁLEZ-G., ALEX E. BUSTILLO-P., Effect of two fungicides in the rearing of Hypothenemus hampei (Coleoptera: Scolytidae) in artificial diet , Revista Colombiana de Entomología: Vol. 26 No. 2 (2000)
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