VASCM: Resistance management strategy

[Jim Varano]

Dear Members, I have been a bad boy and haven't sprayed as much as I should have in the Past 4 years as my small vineyard was getting established . Now it seems I have a very bad case of Powdery Mildew that is reeking havoc on some of my vines.
I have started a spray schedule this year... I have done 2 sprays of Stylet Oil @ 1.5 %.

I was under the impression that you can spray 3 times with one product then switch to another for 3 sprays then go back to your original ..... But my memory fails me....

So......what do you folks do for a resistance management strategy ? What products and time intervals?
I plan on spraying this Thursday weather permitting...so I have time to get what's needed.

Now I know if you ask 10 people you might get 10 answers...but there might be a common thread. And I know I could hire an outside consultant...but I believe that this forum and it's members expertise can help...If I totally botch it,I can save my pennies to hire someone.

Thanks in advance for your help 

Novice 
Jimmi Varano
Spider Mountain Vineyards
Boulder Creek

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