More slides from the 2018 VVA meeting

Here are slides from my student’s presentations. The link will open a PDF file on Google Drive. Please note that many of data presented here are still preliminary and we… Read more

Slides from the 2018 VVA meeting

Thank you again for those of you attended one of my sessions. Here are links to my presentations. It will open PDF files on Google Drive. 1) Interactive grape disease… Read more

Change in Presidio label: grape is no longer listed.

The label of Presidio has been changed, and unfortunately, the grape was removed from the list of hosts. This means that we no longer able to purchase Presidio to control… Read more

Disease considerations at pruning time 2018

Here’s this year’s handout for pruning time disease considerations (this link opens Google Drive with this year’s recommendation for trunk disease management). As I noted in this handout, the first line… Read more

A quick reminder before in-coming rain events

Looks like we will likely to have another round of rain from Hurricane Irma sometimes next week.Just a reminder that we do not have any curative materials for Botrytis and… Read more

Late season downy mildew management and a list of low PHI materials

At Winchester, night time temperature in recent few days is getting pretty low to the point that relative humidity during the night is close to 100%. In addition, we are… Read more

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
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