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Discoloration on the Leaves-Yellow tips and curling

renbuds
renbudsstarted grow question 2 years ago
I'm starting to see some discoloration on the Skywalker leaves. Tips are turning yellow and curling up a bit. Seem discolored on the interior of the leaves. Any thoughts on what the problem is and how to fix it would be appreciated
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Week 3
Leaves. Tips - Burnt
Leaves. Curl up
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m0use
m0useanswered grow question 2 years ago
The canoeing leaves suggest light and or heat issues. Hopefully your grow room has good circulation of air and heat is being vented out and new fresh air is brought in. Some of the other leafs also look like they are having issues with some micro nutrients. Maybe this is being caused by a lock out from over feeding. An EC of 2.0 is high for an auto. Need to cut that back asap. https://www.autoflower.net/forums/threads/med-man-method-feeding-chart-ppm-ec.47856/ Good Luck!
ChitownCannaChica
ChitownCannaChicaanswered grow question 2 years ago
Nutrient burn
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Dr_Drexxx
Dr_Drexxxanswered grow question 2 years ago
Hi there ! The dark green of the leaves (apart from yellow) may suggest a nitrogen toxicity. The yellow between veins could be sign of a lack of magnesium, brown spots and curling leaves says it’s been a long time lack. Try to change your feeding with less N and more M. I hope this can help, good luck 🍀
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