Beauveria Bassiana; Hypothenemus Hampei; pathogenicity; enzymatic activity.

Abstract

In this research was made the cultural and biochemical characterization of nine isolates of Beauveria bassiana (Balsamo) Vuillemin from adults Hypothenemus hampei Ferrari from three coffee regions of special importance of the Guantanamo, Santiago de Cuba and Holguin provinces in addition to national strain (LBB-1) conducted in two experiments: In the first was evaluated the diameter of the colonies, sporulation, germination in three transfers, the pathogenicity and variable conidia-size morphological. The second experiment carried the biochemical characterization of six isolates through a dynamic study of enzyme induction. The existence of a differentiation in the grouping found among isolates, with the formation of subgroups with similar characteristics, demonstrating the ability of these procedures to be used as a tool in the selection of promising strains for biocontrol insects especially coffee berry borer.