Powdery Mildew

Has anyone had experience with powdery mildew.  This is only my second year.Last year in Ohio, we had brutal dry heat day and night that was not conducive to powdery mildew.  This year it is cool at night and low to mid 80's during the day.  I did not spray any fungicide(Daconil) last year until fall.  I was out of town for three days and one of my vines took a pretty good hit.  The leaves yellowed really bad.  I watered and fertilized lightly and sprayed Daconil.  Will the plant recover, or am I screwed?  
 
Also, does anyone have experience with growing the 750 Hubler.  This plant is so unbelievably aggressive that I almost cannot keep up with it.  This tremendous growth is without a large amount of N.  I have made a conscious effort to limit the N I apply this year.
 
John Pritchard
Canal Winchester, OH   
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