what is powdery mildew cannabis
Powdery mildew is a fungal disease that can affect the foliage, stems and flowers of the cannabis plant. A white superficial fungal growth covers the surface of the plant. If left untreated it can quickly spread to other plants and destroy your crop.owdery mildew is a fungal disease that can affect the foliage, stems and flowers of the cannabis plant. A white superficial fungal growth covers the surface of the plant. If left untreated it can quickly spread to other plants and destroy your crop.