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some spot on low leaves (Brown or white)

NikolaTesla
NikolaTeslastarted grow question 5y ago
unfortunately I have spots on some low leaves that do not improve, in one plant browns, in the other slightly white; I have corrected the pH for 10 days now. Thank you
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Week 3
Leaves. Other
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NobodysBuds
NobodysBudsanswered grow question 5y ago
k - deficiency? you've been irrigating with ph'd only water for 10 days? i'd lean toward a deficiency, but if it was recovering you'd have to consider that too... how's it changed lately? could be Mg-deficiency too -- those take 4-6 weeks to show up. consider a longer period of time to eliminate this one or confirm it etc... low on leaves means it is a mobil nutrient. other things can give a false positive for nutrient issues -- but under your context, i doubt buildup is possible with 10 days of irrigation. You've controlled your pH, too... so, feel confident about feeding again... if you check my answers, 9/10 i tell people to back off. i try to be extra conservative when recommending ramping up or resuming after any toxicity. Anyway, i'd say it's safe to fertilize again, and likely needs it. if you were water-only for a reason, consider adjusting your feeding formula a bit. what was the original cause for the flush? adjust that component a bit.
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Trueorganics84
Trueorganics84answered grow question 5y ago
Normally that color comes from ph. But since your ph is good. It’s probably due to over watering. Look at your new growth.
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TimTheTerpMan
TimTheTerpMananswered grow question 5y ago
This can be normal as most will self prune their lower leaves when no longer needed. If it's not spread I wouldn't worry. Pluck them off and keep growing!!
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GMSgrows
GMSgrowsanswered grow question 5y ago
Once the spots are there, they never get better. You have to look at the new growth to see if your improving.cheers
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