Brown spots on the leaves
spacetimemanstarted grow question 4y ago
I have some brown spots on the leaves, the pH, ppm are as recommended, what could cause this?
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Leaves. Color · Dark-brown
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WeedManiacLoveanswered grow question 4y ago
Hola, esas manchas de oxido podrían ser ocasionadas por una deficiencia de calcio, no te preocupes, te recomiendo aumentes la dosis de cal-mag. Buen trabajo! Se ven hermosos y apetitosos cogollos!👌
Jays_Not_Here_Mananswered grow question 4y ago
Hey Growmie, I would say, seeing as your plants are in flower, the rust spots and dark leaves (if it is older growth and older leaves) are phosphorus issues. The lighter leaf with the spotting ( if it is newer growth, or closer to the light, could be a calcium issue. I’m leaning towards your plant cannabilizing itself in search of phosphorus for bud growth. It really looks for it early in flower land can show those signs in older growth. As long as your PH runoff is on point, I would start with using both phosphorus and calcium.
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