If you’ve ever lost a nice zucchini plant or a crop of cucumbers or melons to this white fungus, then you know the heartbreak of powdery mildew. It is a plant disease that looks like its name. It starts as small white circles that look like talcum powder, circles that will spread and eventually cover your plant, reducing the amount of photosynthesis and fruit production if left untreated. Powdery mildew is actually not one single fungus, but a family of closely related fungal species that affect a range of … (read more)
