(Phomopsis leaf spot (plus a lesion of black rot), please note the shoot behind the leaf is showing some necrotic lesions which are also caused by the same pathogen) One… Read more
It’s approximately 10% bud break on our 10 years old Chardonnay and about 25% on 5 years old Chardonnay. Hopefully, we won’t get frosted!! Read more
Thank you for attending grape disease management workshops at Loudoun County Extension Office. I really enjoyed the discussions we had. I also appreciate the effort Ms. Beth Sastre puts together… Read more
Our next grape disease management workshops are at Loudon County Extension Office. Please RSVP with Ms. Beth Sastre (flores69 (at mark) vt.edu). Por favor únete a nuestro taller de manejo de… Read more
Here are my presentation slides from PSU grape disease and insect pest management workshop. Once again, I am looking for crown gall samples from neighboring states. Please contact me when you… Read more
Here are slides from my presentations at UGA Seasonal Vineyard and Pest Management Conference.1) Ripe rot research updates2) Introduction to trunk disease diagnostic aid app and GrapeIPM.org.FYI: Our next grape… Read more
Here’s a 2019 version of fungicide application template. Please read the footnote for downloading onto your computer or copy to your Google Drive to use it. This template is designed to… Read more
We will hold a training session for GrapeIPM.org on March 15th (this Friday) at Horton Vineyards (6399 Spotswood Trail, Gordonsville, VA 22942). The meeting starts at 1 PM and closes at… Read more
At this time of the season, I am often asked about an application of fungicide(s) to dormant vines. I totally understand that you want to do something before things get… Read more
Captan, which we use extensively to manage downy mildew, Phomopsis, ripe rot, and other grape diseases, is currently under review by the EPA. In order to keep captan as one… Read more