VASCM: Resistance management strategy

[Ron Bailey]

University of California UC IPM Onlime
  http://www.ipm.ucdavis.edu/PMG/selectnewpest.grapes.html
is a wealth of information on integrated pest management including 
powdery mildew.

Ron Bailey
Branciforte Ridge Vineyard



At 04:57 PM 5/27/2013, Jim Varano wrote:
>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
>
>Sent from my iPad
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