Four Beauveria bassiana isolates were used in this study. Three
were obtained from the ARS Collection of Entomopathogen
Fungal Cultures (ARSEF; http://www.ars.usda.gov/is/np/systematics/
fungibact.htm): ARSEF 5486 from Ivory Coast; ARSEF
2687 from Kenya; and ARSEF 1480 from Brazil.