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Do I need Copper Fungicide?
Sticky_ickystarted grow question 5y ago
Very few leaves show little black rings on the underside and a faint orange rusty color on the top side.
100cm by 100cm, 200cm tall grow tent. 6 inch 360 CMF inline fan. Ebb and flow in Hydroton. 5.5 ph. 400 ppm. Temp range 65-81. rH range 31-49
Do I need Copper Fungicide?
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Leaves. Other
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