This guide helps to match diseases to treatments http://counties.agrilife.org/sanaugustine/files/2011/06/fruit_nutdisease_4.pdf . In my experience most people are looking for a treatment of one disease or the next eg grapes get blackrot and instead of anyone saying purchase captan for blackrot they instead are at times advised to use a fungicide to take care of blackrot. This guides is more straight forward.
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