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Weird necrotic spots and dying leaves

FlowAest
FlowAeststarted grow question 4 years ago
Is this a disease or a bad root zone problem?
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Week 9
Leaves. Curl up
Leaves. Color - Dark-brown
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Chubbs
Chubbsanswered grow question 4 years ago
It looks like a Calmag deficiency. I would add some with your next feeding. 1tsp/gal and the problem should stop. The rust spots on the leafs won't go away but shouldn't spread or get worsem
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TripleCcannabis
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deficiency?Is this a boron deficiency. If not whats going on with this girl
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