31. Severe symptoms of powdery mildew can cause stunting of wheat. 32. But don't blame your lilacs, phlox or roses for passing their powdery mildew along. 33. In South Africa, the most troublesome diseases are powdery mildew and soft brown scale. 34. The ascomycetes are a black knot, and the powdery mildews . 35. Powdery mildew attacks lettuce plants by robbing them of the nutrients within the leaf.36. The fungus that causes powdery mildew is an exception, preferring high humidity without the water. 37. Powdery mildew of wheat thrives in cool, humid climates and proliferates in cloudy weather conditions.38. Current organic agricultural practices still use a sulfur formulation as a treatment for powdery mildew . 39. They are prone to rot, powdery mildew and aphids. 40. Applications of sulfur are recommended as the primary way to control powdery mildew on lettuce.
