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Grow QuestionsWhat is this caused by? Cant seem to get rid of it...

What is this caused by? Cant seem to get rid of it...

Cookie_monster12started grow question 4 years ago

What is this caused by? Cant seem to get rid of it. Been taking off worst affected leaves but dont want it to be ruined this close to harvest

Cookie_monster12

Cookie_monster12

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Leaves. Color - Dark-brown

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CRiSPrGrowanswered grow question 4 years ago

Hey there , it’s hard to tell without a complete diary but that looks like a combination of light and heat stress and calcium - magnesium deficiency due to light stress. You can tell from the taco-ing of the leafs and the yellowing affecting the newest leafs first , discoloration on the serrated edges of the leafs , and the rust colored spots. Try to increase or add calmag and reduce your light cycle as much as possible to fix the root cause. Hope this helps ! 🚀

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