What are two common symptoms of powdery mildew on plants and a cultural management strategy?

What are two common symptoms of powdery mildew on plants and a cultural management strategy?

• A. Black spots on leaves; prune aggressively
• B. White powdery growth on leaves and stems; leaf distortion or yellowing; improve air circulation and reduce humidity
• C. Wilting due to root rot; apply high-nitrogen fertilizer
• D. Circular leaf spots; increase irrigation

Answer: (B)

Powdery mildew shows up as a white powdery coating on leaves and stems, and it often causes leaves to become distorted or yellow as the infection progresses. A practical cultural management step is to improve air circulation and reduce humidity around the plants, which helps create conditions less favorable for the mildew and slows its spread. This is most effective when you space plants for good airflow, prune to open the canopy, and water at the base to keep foliage dry. Other descriptions mention different symptoms or suggest actions like aggressive pruning or extra fertilizer, which don’t address powdery mildew or its best environmental controls.