Morel mushrooms are delicious and nutritious but are threatened by a fungal disease that can destroy up to 80% of crops. Scientists discovered that two beneficial bacteria species (Streptomyces) from morel soil produce compounds that kill the disease-causing fungus. When applied to morel fields, these beneficial bacteria not only prevented the disease but also increased mushroom yields by about 30% compared to untreated crops, offering a natural and sustainable solution for morel farmers.