Influence of top-watering on the movement of Beauveria bassiana, GHA (Deuteromycota: Hyphomycetes) in potting medium

The downward movement of Beauveria bassiana (Balsamo) Vuillemin GHA, in potting medium with different levels of moisture and top-watering was compared. The population of B. bassiana was greatest in the upper layer of the potting medium without significant movement 18 d post-application, finding no B. bassiana in untreated pots.