Infection risk event from early this morning

There were a few isolated light showers passed around Winchester area early this morning, resulted in 6 hours of wetness with low 60’s average temperature.  This was a low infection… Read more

Disease risks from last night

Another thunderstorm went through Winchester area last night.  Although the first few hours were warm, the temperature dropped to low 50’s during the night.  The total wetness was 15 hours… Read more

Disease risks from the on-going rain event

A thunderstorm went though Winchester area yesterday afternoon, and since then the cloud cover kept RH very high.  So far we observed 17+ hours of wetness, and the average temperature… Read more

Potential disease events coming up

Looks like we will rains throughout the week.  Our chardonnay vines are about 1-2 inches shoot length, and we have been spraying mancozeb and sulfur this morning to provide protection… Read more

50% bud-break for our Chardonnay plus Phomopsis risk

Our 5-yr old Chardonnay is about 50% bud break stage as of today. At this time of the year, the number-one concern is Phomopsis cane and leaf spot. They produce… Read more

Almost there…

Our 5-yr old Chardonnay is still in the mitten stage, only a few broke buds.  At least we do not see the risk of frost in the 10-day forecast… Once… Read more

Trunk/Cordon spliting

Some of northern VA growers contacted us about splitting of the trunks and cordons which became apparent in the last few weeks.  Although the cold injury model showed that temperature… Read more

Protective Paint for Crown Gall?

The cold temperature during this winter probably resulted in many trunk splitting or scarring on less winter hardy vines.  I am planning to conduct a quick study on the effect… Read more

Disease consideration at pruning time.

I have a feeling many of you are working on pruning right now to take an advantage of the warm weather.  Please find a handout for the pruning time disease… Read more

In-season vineyard meeting on 23 April at Cardinal Point Winery

It looks like the winter is finally over.  I hope everybody is ready for the new season. We will start off our season with a vineyard meeting at Cardinal Point… Read more
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