Only leaf in the whole tent???

  • Thread starter FlossyMaple
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FlossyMaple

FlossyMaple

37
18
This is the only leaf in the whole tent that’s doing this??? And does anyone know why the new growth looks great but all the old fan leaves are just dropping down? It’s like I can’t get them to perk back up 😭. Growing in coco with floraflex, 1.6ec @ 6.2ph, par right around 400 under Phantom Photobio MX. Tent is 78-81 degree @ 55-62%rh.
Only leaf in the whole tent
 
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Only leaf in the whole tent 3
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Farmer88

Farmer88

222
43
I seriously thought this was just a thread about a Canadian.

Damaged leaf, if it's the only one, it's probably a fluke. Monitor for similar leaves in the mean time.
 
mysticepipedon

mysticepipedon

4,738
263
When new growth looks good, but old growth is yellowing or getting interveinal chlorosis, it means a mobile nutrient is deficient in the plant and the plant is moving that nutrient from old growth to the growing tops.

It doesn't necessarily mean the nutrient is deficient in the growing media. It could be a pH issue or one nutrient could be blocking uptake of another. But that plant looks a little deficient in Mg.
 
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