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Gray spot

Apolloostarted grow question 5y ago

Hello everyone! Some of my leaves have small gray spots on them, like the ones in the picture. What could be causing this?

Apolloo

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Leaves. Color - Black or grey

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Organomananswered grow question 5y ago

Nothing to worry about, just a bit of abrasion damage where the leaf tips are touching the soil surface, most likely at night when the leaves are lowered and the fan is blowing on them.

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