For black spot disease I’ve successfully been using a combination of Liquid Systemic Fungacide II and Mancozeb. Recently I’ve not been able to locate Mancozeb so hoping someone has an additional “formula” that works. Thank you for your thoughts……
Where do you live? Go to Amazon and get some Manzate Pro-Stick it is on sale, 6 pounds, powder. 1 Tablespoon per gallon dissolve in a different container before mixing in your spray tank. I use it every time I spray.
Perfect……thank you very much
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