Mildew

Mildew, spread by certain orders of fungi, is always a problem in wet climates. Powdery mildew is easily spread through the wind, while downy mildew is stored in spores in the ground which are awakened by rain. Both can stunt grapevine growth, lower yields, cause mold to grow, and overall spoil the grapes. Sulfur spray and fungicides can help stop mildew from spreading.

tags: contaminant ·