Managing Powdery Mildew During Veraison

Riping Chardonnay grapes     One of the challenges of grape growing is that of controlling powdery mildew or botrytis after the grapes start developing their sugars (veraison). During the growing season we use elemental sulfur, but as we get within 5-6 weeks of harvest, we must stop. The sulfur is known to leave a… Read more »