Beauveria bassiana is an entomopathogenic fungus that targets various insects, including whiteflies, thrips, aphids, psyllids, mealybugs, beetles, plant bugs, and weevils. The fungus is effective when its spores contact the host insect. After infection, Beauveria bassiana grows rapidly inside the insect, consuming its nutrients and producing toxins. Upon the host's death, the fungus covers the carcass with a white mold that generates additional spores. This fungus is capable of controlling multiple life stages of a wide range of soft-bodied insects in greenhouse, field, and nursery environments.