Some downy mildew recommendations for cucumbers – VGN
Downy mildew causes severe leaf blight on cucurbit crops, including cucumber, melon, squash, and pumpkin. Incited by the fungal-like pathogen Pseudoperonospora cubensis, downy mildew has occurred every growing season for Michigan cucumber growers since 2005.
Source: Some downy mildew recommendations for cucumbers – Vegetable Growers News