Answer: Powdery mildew can sometimes attack honeysuckle, especially when the days are warm, the nights are cool, and the plant is overcrowded. You can prune out the affected plant parts now. Removing the fungus will keep it from spreading to the rest of your plant. You'll also be opening it up to better air circulation. If your honeysuckle is planted in full sunshine, it will be less prone to developing the disease. Honeysuckle is a fast growing plant so pruning it back now in early summer will encourage it to grow healthy new stems and foliage. Best wishes with your honeysuckle!
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