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Multiple Choice

Which of the following best describes Beauveria bassiana's role as a biocontrol agent?

Beauveria bassiana is a fungal entomopathogen used in biological control. It works by having its spores land on an insect’s cuticle, adhere, and germinate. The growing hyphae release enzymes that break down the protective outer layers, allowing the fungus to penetrate the cuticle and enter the insect’s body. Inside, the fungus proliferates, often producing toxic metabolites that help kill the host. After death, the fungus can sporulate on the outside of the cadaver, releasing new spores to infect others. This living organism approach is different from chemical pesticides and from bacterial toxins or parasitoid insects, which is why it fits as a fungal entomopathogen rather than those other categories.

Beauveria bassiana is a fungal entomopathogen used in biological control. It works by having its spores land on an insect’s cuticle, adhere, and germinate. The growing hyphae release enzymes that break down the protective outer layers, allowing the fungus to penetrate the cuticle and enter the insect’s body. Inside, the fungus proliferates, often producing toxic metabolites that help kill the host. After death, the fungus can sporulate on the outside of the cadaver, releasing new spores to infect others. This living organism approach is different from chemical pesticides and from bacterial toxins or parasitoid insects, which is why it fits as a fungal entomopathogen rather than those other categories.