If a white, dusty coating suddenly appears on your houseplant’s leaves, don’t panic—but don’t ignore it. “Powdery mildew is a type of fungal infection that affects plants,” says Bex Claire Hamell, ...

Stopping powdery mildew early saves houseplants by protecting photosynthesis, preventing spread, and avoiding long-term leaf damage. Remove infected leaves quickly, isolate plants, and treat with ...