Field Evaluation On the Lethal Effect of Beauveria bassiana Strains NI8 and GΗΑ Against the Tarnished Plant Bug in Cotton

Two isolates of Beauveria bassiana including the commercial strain GHA and the Mississippi Delta native NI8 strain were evaluated in the field for pathogenicity and infectivity against tarnished plant bug.  Four different concentrations of B. bassiana strains were applied. The LD50 and LC50 will be presented and discussed.