If you are really interested in learning about grapevine trunk diseases, this new journal article is for you (see link).  It is a highly scientific article which covers the state of the art relative this topic.  We mainly have issues with Botryosphaeria-type diseases, and I include Phomopsis in this category as well.  However, we have identified Petri disease previously, and I bet we have more of this disease on stressed vines than we realize.  If you get bored with spending quality time with family over the holidays, I have provided a gift for you. In all seriousness, I hope each of you can spend time with family and relax a little over the next week or so.  Looking forward to a new and productive year.

Grapevine Trunk Disease Review