By Evan Dawson, Finger Lakes Editor Photo by Morgan Dawson Photography Downy mildew is like the slasher movie killer in the vineyard: You almost never see it, but when it does make an appearance there is a trail of destruction in its wake. And all summer long, we heard how this was a disease pressure year like few others — a slasher movie, to be sure, in the unsuspecting vineyards. Check out this photograph of grapes ravaged by downy mildew. It was taken in a Finger Lakes vineyard that serves only as an experimental block and thus is not designed…
