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Plant & Pest Advisory – July 8, 2025 – Andy Wyenandt Cucurbit powdery mildew (CPM), caused by Podosphaera xanthii, is one the most important diseases ofcucurbit crops throughout the world. The pathogen is an obligate parasite, just like cucurbit downy mildew, meaning it needs a living host in order to survive. In northern regions that […]