In this latest edition:
- Cucurbit downy mildew recommendations for 2011
- Cucurbit powdery mildew recommendations fro 2011
The fungus that causes cucurbit powdery mildew is a very different pathogen than the water mold pathogen that causes cucurbit downy mildew. Cucurbit powdery mildew likes warm, humid conditions (the humidity within a plant canopy provides ideal conditions). The pathogen does not like wet conditions, but water will spread the pathogen spores to other plants.