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Leaves burn
Zegr8started grow question 4 years ago
Hi! Is this nutes burn? Damage is on the upper/middle part of the canopy on very few leaves, but many more have black tips.
I’m puzzled because during veg I was feeding the plant higher ppm than now and never had a problem!
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Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Color - Black or grey
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Hempy_Masteranswered grow question 4 years ago
That could be a lot of things actually... including a deficiency. Check humidity, root zone ph and temps first- these are the common culprits when you see some light discoloration. If humidity, ph and temps are in ideal range then feed with low ppm nutes (around 300 or so) and watch for things to get better or worse. If things improve than you know it was a nute burn issue, if they continue then you know there is a deficiency. By this point there should be some other symptoms and will be easy to identify. I would not recommend watering with pain water multiple times as a deficiency will worsen- If it's the beginning of a phosphorus deficiency then you will see a drop in yield if not treated appropriately.
growtenthoboanswered grow question 4 years ago
It looks like you have the beginnings of nute burn. It's not the end of the world however. Just give straight ph'd water for the next couple watering before continuing with a well balanced feeding with the ph adjusted properly.
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