What causes white spots on butternut squash and how can they be prevented or treated?
White spots on butternut squash are typically caused by powdery mildew, a fungal disease that thrives in warm, humid conditions. To prevent powdery mildew, ensure proper air circulation around the plants, avoid overhead watering, and apply fungicides as needed. If white spots appear, remove and destroy affected leaves, and treat the plant with a fungicide to stop the spread of the disease.