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Eugene, OR

Hey all, I was just wondering if anyone has tried any of the potassium bicarbonate based fungicides out there like Armicarb 100 or MilStop? How well did it control PM and/or downy mildew for you? Any problems with spray damage?

Your experiences with fungicides that use this active ingredient would be greatly appreciated.
Brian

8/7/2007 11:13:19 PM

Ashville, Ohio

I have used milstop, it seems to work pretty work for me. It may not work as well as the other high dollar chemistries but does good for me. have not had any spray damage, I have always sprayed late evening and try not to get on fruit. hope this helps
Bryan

8/8/2007 12:41:56 AM

Midwest

Last and this year I used GreenCure with main ingredient potassium bicarbonate. Applying every 10days (sometimes 7) with real good results. worked well into October. No leaf damage. Does well on PM.

8/8/2007 1:13:05 PM

Eugene, OR

Thank you for the info. What rate did you use? The product I was looking at is 85% potassium bicarbonate...

Thanks again,
Brian

8/8/2007 9:05:51 PM

Midwest

I don't know the concentration of potassium bicarbonate in GreenCure but, the recommended rate is 1Tblsp/gal. 1gal covers 450sq/ft.

8/9/2007 1:28:25 PM

Ashville, Ohio

used 1TBS/gal preventive 2 TBS/gal curative

8/9/2007 11:05:21 PM