A rain event followed by high relative humidity (+28 hours of wetness in high 60F) created disease risk event for downy mildew and Botrytis on 8/28-29. Read more
A wetness event recorded yesterday was infection event for Botrytis and Downy mildew. Refer to yesterday’s post on spray choices. Please make sure to alternate mode of actions to reduce… Read more
Continuous rain and high relative humidity caused Botrytis and downy mildew infection risk events on the 14th, 17th, and 20th. At this point of the season, a phosphite (aka phosphonate… Read more
Botrytis risk has been high from 8/9 to 8/13 due to frequent rain event. This also means that downy mildew risk is high too. (I am at a conference, so,… Read more
On 8/6 a wetness event (~10 h in lower 70F) was recorded at Winchester, and there was another event today (~16 h in lower 70F)… Both are risk event for… Read more
There was ~27h wetness event recorded between 8/3-8/4 with temperature varying from upper 60F to lower 70F. It was an infection event for Botrytis and downy mildew. Read more
Between 7/31-8/1, there was several wetness hours recorded, and one of them was 16h with an average temperature of low 70F. It was a disease risk event for downy mildew… Read more
July 27-28th were very wet for us. We recoded two long wetness events (8 hours and 22 hours), which were infection events for Botrytis, downy mildew, black rot, and Phomopsis. … Read more
July 24th Gadino Cellars and Vineyard, Bill and Aleta Gadino owners. Tour Begins: 3:00pm Topics: § Disease Management – Dr. Mizuho Nita, Virginia Tech Grape Pathologist § Insects Updates… Read more
Winchester area received a short rain event on the 21st. It only lasted a short time, but due to that relative humidity stayed high for the whole night. (i.e., it… Read more