Disease management considerations toward bunch closure

In a typical year, the fourth of July weekend is the time the critical period for cluster infection by downy mildew, powdery mildew, and black rot will end for many… Read more

Post bloom disease management considerations

As of today, it is about 10% bloom at our Chardonnay plots. Since bud break was about 2 weeks ahead of a typical year, things are moving along as we would… Read more

Observations from the field

Some shoots of our vines are about to reach the second catch wire, but I saw many that were still about 10-12 inches too. It looks like series of rain… Read more

Bloom time disease management considerations

Many of our vines at VT’s AHS AREC are about to reach the first catch wire and going strong. When shoots are about 10-12 inches long, downy mildew, powdery mildew,… Read more

From bud break to pre-bloom disease considerations

Our reds broke buds, and whites have about 1-inch shoot growth on it today, and more rains in the weather forecast. It is time to think about Phomopsis! What happen… Read more

Early season disease reminder: Phomopsis cane and leaf spot

Our Chardonnay and some of the hybrid vines are in bud swell stage as of this week, and others are tagging along.  It looks like we will see bud break… Read more

Presentations and handouts from Weekend Warrior IPM workshop

It was very nice to see you all at the Weekend Warrior Grape IPM workshop. I think we had a very good time with lots of discussions. Hopefully to see… Read more

Fungicide application template

I have updated my fungicide application template that I have been using for my fungicide guides. If you are interested in, it can be downloaded from this link. (will open a… Read more

Last stretch!!

I heard that some of early cultivars are ready to be picked on 7-10 days.  Looks like no tropical storms to worry, yet… (crossing my fingers!) There have been frequent… Read more

Seasonal disease management considerations toward the end of the season.

Most of us are about to finish critical time when clusters are susceptible to infection by downy mildew, powdery mildew, and black rot.  This critical time varies by varieties, but… Read more
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