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Help in identifying Burnt tips amnesia haze
Bimbadabangstarted grow question 4 years ago
Hello,
If anyone can help me identify the cause of these burnt tips it would be a great help!
For info:
Amnesia haze week 9-10
Ph runoff is 6.4
I’ve had problems with calmag deficiency before so it could be that
Using biobizz light mix and biobizz nutes
Anything helps!
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Leaves. Edges burnt
Leaves. Tips - Burnt
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The8thChevronanswered grow question 4 years ago
My gut instinct is that you're getting a nitrogen toxicity from residual nutes in the soil. Looks like you're in about week 3 or 4 of flower. It's at this point that the need for N plummets and buildup in the soil that was ok before, is now hurting them. If that's the case, the problem should fix itself.
Otherwise, calmag is the most likely culprit.
GDub51answered grow question 4 years ago
Looks like two issues to me. The brown tips are a sign of overfeeding while the yellow edges are indicating a second issue of imbalance. Are you measuring the TDS of the runoff? It should be less than going in otherwise it's too much. I'd guess a deficiency of something. Are you keeping a log to keep track of what you have given the plant? Yellow spots are like having a fever, you know something is wrong but no what yet. The measurements should help narrow this down as well as reading more about what makes for yellow parts. I"d give them just PH'd water for a feed or two till the problem resides then build back slowly with new ferts while diligently checking the PH and TDS.
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Hempy_Masteranswered grow question 4 years ago
Looks like magnesium without any other info. Your ph is a little high at 6.4 as well- add some cal mag and drop ph to around 6.0-6.2 to see how it reacts
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