Grape disease risks from the NEWA

Here are snapshots from the last week, showing the number of days with the risk of each disease: Ph = Phomopsis, PW = Powdery mildew, BR = Black rot, and DM = Downy mildew. N/A means there is no data or some issues with the NEWA  (I reported to the NEWA, but I am not sure when/if they can fix it…)

Downy mildew risk forecast

We generated the downy mildew forecasted risk based on the past seven days of weather and an 8-day forecast. Please click the figure below to enlarge. As you see in the NEWA model, the spore production risks are high in many locations. Since the probability of rain is low, we may have a bit of a break this week, but we may see some rain early next week. The VA Wine Board and Southern Region Small Fruit Consortium have supported this effort.