Beauveria bassiana is a type of fungus that primarily targets insects. It is known for its ability to infect and kill various pests, making it a valuable tool in biological pest control. The fungus produces spores that attach to the insect's body, eventually penetrating its exoskeleton and leading to the insect's death. This fungus is considered environmentally friendly because it specifically targets pests without harming beneficial insects or plants. Beauveria bassiana is used in agriculture and horticulture to manage pest populations naturally, reducing the need for chemical pesticides and promoting sustainable farming practices.