Vague guidance

Remember the vines looking like they had burnt leaves, and the one on row 7 that's really nasty looking?  Well I took samples into the Master Gardners, who sent it off to UC Davis for testing. 

The feedback from the lab:

"Powdery mildew Not detected. Some secondary fungal sporulation seen, but no plant pathogens detected. Some insect webbing present but no insects to send to Entomology for I.D." 

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The Master Gardener's comments on the above::

Often we find that the lab tends to focus their testing on potential vectors for new invasive pathogens introduced into the state.  I suppose the good news is that whatever they found on the leaves, it was not a point of concern from their perspective. 

I'm pretty sure they tested for Pierce's disease since it's a real hot-button in our area, also to the extent they could probably want to see if there's evidence of European Grape Moth.  Sadly, I don't think we can't rule out esca, but for now I'm going to continue to correct for known deficiencies (Magnesium, Boron) and continue to be on the lookout for more tell-tale signs of other diseases.

On and look into gopher / vole control too.  They got to our tomatoes, lettuce, and even zucchini!