Update:
Now the hardest time is over and the clusters are on their way. Time to have a look on my vineyard:
Most of the surviving vines that were planted 2 years ago look very poor:
Just a few leaves and most of these leaves show necrosis (variety: Pinot Noir):
A few do better but show a weird coloration of the leaves (variety: Marzemino - a red Pinot-Noir-like variety):
Those are the only surving Gewurztraminers. At least they do fine:
The old vines do much better, but only one vine formed beautiful clusters:
The others show no clusters at all or only very small ones:
Those seem to be rootstock varieties:
Here are some examples of what you can do wrong in your vineyard:
Glyphosate damage:
Destroyed bark from mowing between the vines. They will turn yellow in a few weeks 
At least the new vines do fine (variety: Blauer Wildbacher - Austrain red variety).
I don't think that I can get the 2-year-old vines over the winter. They just don't have enough foliage. I hope the damaged old vines will come back next year. They are very old and have a well-established root system... For the new vines I can only hope for a moderate winter.
I also have a new spraying routine, which seems not cause leaf burn:
copper against downy mildew, milk against powdery mildew and "Aminovital", a bilogical fertilizer, as wetting agent.
to be continued...
