Powdery Mildew of Stone Fruits

Symptoms caused by the powdery mildew can be a dwarfing of the growth of the plant, or the twisting and deforming of leaves, but more noticeable is a sign of the disease, which is the white condia, the “powder” that appears on the plant surfaces, such as leaves, shoots, flowers, and buds. The fungus may grow on both new and old leaves, but is generally more concentrated on the underside of the leaf.