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Brown Spots on Leaves
elevensixty6started grow question 4 years ago
I've got some brown spots showing up on the Wedding Cake leaves, first thought it may be mold but it doesn't rub off and I sprayed both plants with neem oil about a week ago just in case. Could be CalMag deficient? I use RO water with about 150-200ppms in 3 liters once a day.
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sir_isOanswered grow question 4 years ago
I'd use a bit of calmag, slightly calcium biased (like 4-8: 1 vs magnesium) and sulphur tbh.
Remember, calcium and magnesium are separate elements, calcium tends to buffer things and is more abundant than magnesium, in nature, quite a bit more. Lots of people simply think "calmag", which is typically too biased towards magnesium (because of indoor, hydro and semi-sterile mediums).
Ze1roanswered grow question 4 years ago
I'm with @BraveheartGenetics.
You're in the stretch of flower so it may be calmag deficiency like @sir_isO mentioned.
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sir_isOanswered grow question 4 years ago
The other thing is, though sort of unlikely. Remember, plants need chlorine...you might even want to use tapwater now and then.
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BraveheartGeneticsanswered grow question 4 years ago
Hi mate, your plant is looking really health and unless its getting worse I wouldn't worry too much about it. You may be having PH fluctuations which could cause this but can't be sure. Hope this helps, good luck and happy growing
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