Researchers studied fungi living inside three varieties of strawberry plants to understand why some varieties are more resistant to diseases. They found that disease-resistant strawberries like White Elves naturally harbor beneficial fungi such as Trichoderma and Talaromyces that fight off pathogens, while disease-susceptible varieties like Akihime have more harmful fungi. This discovery could help farmers grow healthier strawberries without relying solely on chemical pesticides by using natural beneficial fungi.