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Grow QuestionsBrown Spots on Leaves

Brown Spots on Leaves

ArrozBlancostarted grow question 2 years ago

Can anyone help me out. I'm getting these brown spots and the leaves are starting to yellow a bit. I gave Gaia Bloom 10 days ago at 1 TBLS per gallon of soil and I gave 3 TBLS of Langbeinite today. Par 600 rh 45% temp 74 can't tell if they're getting better or worse. 47 days in.

ArrozBlanco

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Leaves. Other

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Mooncatanswered grow question 2 years ago

Looks like a Cal/Mag Deficiency... https://www.royalqueenseeds.com/blog-calcium-deficiency-in-cannabis-plants-n602 also check ph of your solution i would guess. Ether that or you have to much of something in your soil that prevents the uptake of those two elements...(the tip of the leaves are aiming down a bit like clawing thats an indicator for to much nutes in the medium but that may just look like that from the picture itself also the leaf tips aren't burned witch usually accompanies that) Get some PH strips/stick some Cal Mag Product of your choice and that should hopefully fix that.

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ArrozBlancoanswered grow question 2 years ago

Thank you both!

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Enemy61390answered grow question 2 years ago

It is difficult without a closer picture. I was thinking leaf septoria but this looks patterned. My top 3 guesses would be: Manganese deficiency, Phosphorus deficiency, or Calcium deficiency. I would also check the Ph of your medium and ensure it is within the correct range. Here is a useful link FWIW to you: https://drcannabis.io/symptoms good luck!

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