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Burn leaf
Experimentgreenanswered grow question 5y ago
Hello
My opinion would be calcium deficiency, those copper rusty spots are an immediate cal thought for me. But i see you have calmag in the diet. Some plants are very calmag hungry so it could need an increase, otherwise its maybe not being taken into the plant because of a ph level or sometimes high potassium will block it out.
I think the cool temperatures will change your bud color, and sometimes the leaves but its more of a whole leaf change versus spotty changes.
Fruitgroweranswered grow question 5y ago
Too much potassium (k) can cause lockout to calcium and magnesium and this is what the rusty, yellow, spots mean. 👍🌱
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GaiaGreenGiantanswered grow question 5y ago
These leaves look to be in mid to late stage of a calcium deficiency. Look it up. It’s common mid flower when growing in soil. Garden lime will provide some in the long term and help balance ph. Cheers 🍻
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