Scientists discovered a beneficial soil bacterium called Bacillus amyloliquefaciens that produces a natural antifungal compound called fengycin, which effectively kills dangerous mold (Fusarium graminearum) that contaminates animal feed. This bacterium can be used as a biological control agent to prevent fungal growth and reduce harmful mycotoxins in livestock feed, offering a safer and more environmentally friendly alternative to chemical fungicides. The study shows the bacterium’s compounds damage fungal cell membranes and generate harmful stress molecules that kill the fungus.