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'Claws' on tips just after flowering started. Previous answers help - it is a bit worse. I keep a perfect VPD. What should I do? Flower wouldnt f

bbkaldo
bbkaldostarted grow question 6 months ago
I'm confused. For the first 3w I used LED as instructed 30-40cm, I had ~43cm,100%dim, everything was fine. When the bloom started yellow claws appeared and still there, maybe a bit worse, with 53cm and 75%dim. Mostly on BPP, one more plant showed her claws today aswell. 😓
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Leaves. Edges burnt
Leaves. Tips - Burnt
Setup. Lighting
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DoughHead
DoughHeadanswered grow question 6 months ago
During bloom the plant requires less Nitrogen. So if you continued feeding veg. Or if your bloom nutes have a high Nitrogen percentage then this could happen. With bloom starting I would suggest a flush Alot of growers do this when switching from veg to bloom for this very reason, to prevent a buildup of nitrogen. Although other plants don't show it. It could be just this pheno. It may require less nitrogen then them. . I would flush until ppms are down in normal range. Then feed half strength bloom feeding following the flush. Keep a good eye on her and the runoff ppms so you can tell if she may need more or less nutes or teas if your organic. But yeah the yellow top leaves, along with the Claw shows nitrogen toxicity. Just flush her then follow with half strength bloom feeding, and always water until 10-15 % runoff to push old nutes out which will prevent this. Check the runoff every watering or feeding. It will tell you if you ever are toxic or deficient on your nutes.. each plant is different any may require more or less then others. Goodluck, this should be a simple fix and easy recovery!
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AsNoriu
AsNoriuanswered grow question 6 months ago
Its nitrogen toxicity, nothing to do with lights. You heavily overfed plants. If hydro or coco - flush. If soil - pure, good phed water diet for 2-3 waterings at least.
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