Winchester area received a series of rain events from 5:30AM on 18 April. It lasted about 10 PM. Since the rain stopped at night, leaf wetness is still on-going (i.e.,… Read more
There was a very short shower went through Winchester area around midnight last night. It lasted about 1.5 hrs, the air was relatively dry (~80% RH), and the average temperature… Read more
It is just a reminder that we will have a vineyard meeting tomorrow, starting at 11 AM at Horton vineyard and winery, then move to Barboursville. Tony, Tremain, and I… Read more
Winchester area received some precipitation last night; however, the length of the rain event was short (30-40 min), the average temperature was low (48-49F), and relative humidity did not stay… Read more
Here comes 2012 version of “Workbook for developing an effective fungicide program for Wine grapes in VA” (<- click to download a pdf file). If you receive Tony’s Viticulture Notes,… Read more
Rain from yesterday (4/2/12) started around 9PM on 4/1, and lasted until 2:30AM or so. The RH was high (>90%) until 3:55AM, thus this was about 7 hours of wetness… Read more
As of 3/29/12, about 20% of our Chardonnay buds and shoots are showing the injuries from the frost event on 3/27/12. Damages on Merlot is about 5%. I hope your… Read more
I guess both Anton and I tend to work on Sundays… He send me two nice pictures of flag shoots. and As you can see leaf surface is covered with… Read more
In reply to the previous post about powdery mildew, Anton (Baudoin of VT) made a very good comment about “flag shoots” of powdery mildew. This is a case of infection… Read more
Well, it typically won’t happen until May or so, but under this weather conditions, you cannot expect the usual trend. Often time, powdery mildew is common under dry weather because… Read more