What may happen on a vineyard floor this time of the season

During this winter, I received a few questions about a sanitation (= removal of infected tissues) as a part of disease management.  Our understanding is that most of the grape… Read more

Disease risks from yesterday’s rain

The rain events on 4/16/11 at Winchester started on 4:20AM and lasted until 9:40PM or so, and then the relative humidity was high (>90%) until 10:20PM.  Thus, this potential infection… Read more

2011 vineyard meeting series

We will have this year’s first vineyard meeting on 4/27/11 at De Vault Vineyards.  I will present seasonal reminder on grape disease management and Tony and/or Tremain will provide viticulture… Read more

Bud break

I meant to post this message on Friday, but I could not find a time for it.  As of Thursday (4/14/11), I counted buds of 50-60% and 30-40% of Chardonnay… Read more

Bud swell

I counted 10-15% and 30-40% of our Chardonnay and Merlot vines, respectively, are having buds that are swelled noticeably a few days ago, and today’s counts were 40-50% and 70-80%… Read more

One-year memorial event for Dr. Rongcai Yuan

It is hard to believe, but it has been almost one year since our horticulturist, Dr. Rongcai Yuan passed away.  We will hold a one-year memorial event on April 14th… Read more

2011 Fungicide Spray Guide for Bearing vines

Finally, here’s the 2011 version of fungicide spray guide for VA wine grape (bearing vines).  I hope it will help you come up with your spray schedule for 2011. Please… Read more

2011 fungicide spray guide for NON-bearing vines

Here comes the 2011 version of fungicide spray guide for non-bearing wine grapes.  The guide for bearing vines will be coming very soon! Read more

Spring has come!

Wheats are green, forthysias are blooming, apples have greentips, and grapes are bleeding.  Well, I think spring is arriving in our area! Just a reminder that we have a series… Read more

Pierce’s Disease (PD) risks for 2011

We are having a series of warm days in the last few weeks, and that made me wonder about the risk of PD for this year.  As you might have… Read more
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