KnowraDowny mildewLinked fromLinked fromThe 4 pages that link to Downy mildew, each with the reason it gives.All 4Broader topic 1Related 1Compared with 2Powdery mildewCompared with: Unlike powdery mildew fungi, downy mildew pathogens are oomycetes and commonly thrive in wet conditions.Noble rotCompared with: It is a harmful grapevine disease, not the beneficial grape infection meant by noble rot.