Here is a list of upcoming meetings. Please note that there are two meetings on March 15th. GrapeIPM.org introduction and training session will be held at Horton Vineyards from 1:00 PM.… Read more
It was very nice to see you all at the VVA meeting!Here are the slides from my presentations (in a pdf format). 1) Grape disease management workshop 2) Ripe rot… Read more
Many of you are about to be done with harvest and some may still have a few more weeks to finish this rainy season. This is a reminder for disease… Read more
I received several emails and phone calls concerning spray before the upcoming hurricane Florence. Hopefully, we will have a window of opportunity to apply materials. Looks like we have a break… Read more
Field day: Use of Protective Covers to Reduce Fungicide Usages in (Organic) Wine Grape Production in Virginia 5 September 2018 1 – 4 pm AHS AREC 595 Laurel Grove Rd.… Read more
At Winchester, the night time relative humidity has been still very high, close to 100%, in nearly every nights in the past three weeks. In addition, we have been observing… Read more
In the last several days, the nighttime relative humidity has been very high (>90%) and temperature has been in the upper 60s ~ lower 70s. This condition is favoring spore… Read more
Just a reminder on downy mildew management: although the month of July was dry until this week, many of us had a very wet early summer that fostered downy mildew… Read more
Thanks again for coming to today’s vineyard meeting. I learned quite a bit! Here are my handouts (sorry for not bringing enough today!!) 1) Sprayer calibration handout (will open a PDF… Read more
Most of us are about to finish the critical time when clusters are susceptible to infection by downy mildew, powdery mildew, and black rot. This critical time varies by varieties,… Read more