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Old September 7, 2020   #2
cwavec
Tomatovillian™
 
Join Date: May 2016
Location: PA - 5b
Posts: 92
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In my not-so-humble opinion chlorothalonil is worthless. Years ago I used a
bunch of it with essentially no beneficial results.


You would be much better served by going back to your "copper"

fungicide and by adding a spreader-sticker. But be careful.


I have posted a reply in the thread "Can you store Copper-Soap solutions?"
with detailed information on the use of copper fungicides but be sure you
are starting with a 10% concentrate of copper octanoate.


Addition of Revitalize could help although it may be late in the season
for that.
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