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Brown Spots on Leaves
HomeGrown33started grow question 24 days ago
I’m noticing some light brown spots on my leaves. After researching it seems that it was either 1) Manganese deficiency 2) calcium deficiency or 3) overwatering. I don’t think I’m overwatering. It could be the nutrients but would like input!
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Leaves. Color - Dark-brown
Leaves. Color - Mottling
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terp69answered grow question 24 days ago
Look for calcium toxicity or nitrogen toxicity. If you use CaMg then you have toxicity not deficiency 100%. I cant see what fertilizers you use, however, my opinion, if you grow indoors in pots, i can see that you have good soil mix, you hardly have de deficiencies, only toxicities. If you dont use CaMg, maybe you use too much grow fertilizer that is reach in nitrogen and can be nitrogen toxicity.
Fisixanswered grow question 24 days ago
Hi,
you are right with CalMag deficiency.
Manganese is pretty uncommon and mostly only with trash fertilizer.
Check the PH if she still can get the nutes if that is alright maybe increase you CalMag a bit. Also maybe check Runoff PH and EC/ppm.
Hope this helps.
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