Description: Seasonal updates on wine grape disease management, extension meeting announcements, and other related topics from a grape pathology lab at AHS AREC.
Grape Disease Risks: 9/16-23/2026 and Downy Mildew ForecastGrape Disease Risks: 9/16-9/23/2026 NEWA is an Agricultural Weather Station Network, and we are part of the team. Here is a snapshot from last week showing the number of days with risk for each disease: Ph = Phomopsis, PW = Powdery...
Grape Disease Risks: 9/9 – 9/16/2026 and Downy Mildew ForecastVine Status I heard some growers have seen quite a bit of ripe rot this year. I hope you avoided it! Grape Disease Risks: 9/9-9/16/2026 NEWA is an Agricultural Weather Station Network, and we are part of the team. Here is...
Grape Disease Risks: 9/2-9/9/2026 and Downy Mildew ForecastVine Status We harvested table grapes today. Some cultivars, e.g., Mars, Faith, Everlest, Neptune, and Joy, had OK harvests despite the frost damage. Grape Disease Risks: 9/2-9/9/2026 NEWA is an Agricultural Weather Station Network, and we are part of the team....
Grape Disease Risks: 8/26-9/2/2026, and Downy Mildew ForecastVine Status Sooty mold on a Chardonnay leaf due to honeydew produced by the spotted lanternfly. The sugar content in honeydew can promote the growth of certain fungi that might not otherwise appear. Things have slowed down a bit, but...
Grape Disease Risks: 8/19-8/26/2026 and Downy Mildew ForecastVine Status Our Chardonnay vines are nearing harvest. The only issue is that we only have a few clusters… Grape Disease Risks: 8/19-8/26/2026 NEWA is an Agricultural Weather Station Network, and we are part of the team. Here is a snapshot...
Grape Disease Risks: 8/12-8/19/2026 and Downy Mildew ForecastGrape Disease Risks: 8/12-8/19/2026 NEWA is an Agricultural Weather Station Network, and we are part of the team. Here is a snapshot from last week showing the number of days with risk for each disease: Ph = Phomopsis, PW = Powdery...
Grape Disease Risk: 8/5-8/12/2026 and Downy Mildew ForecastVine Status The majority of Chardonnay clusters are in the middle of veraison. For some reason, our Merlot dodged the frost, and its clusters started to accumulate sugars. Grape Disease Risks: 8/5-8/12/2026 NEWA is an Agricultural Weather Station Network, and we...
Grape Disease Risks: 7/29-8/5 and Downy Mildew ForecastGrape Disease Risks: 7/29 – 8/5/2026 NEWA is an Agricultural Weather Station Network, and we are part of the team. Here is a snapshot from last week showing the number of days with risk for each disease: Ph = Phomopsis, PW...
