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Leaf Diagnosis Needed
aBUDabovestarted grow question 2 years ago
I need help. Leaves are turning yellow at top of plant only. And only on American Pie. Not Northern Lights. I am using a Sonlipo SPC2500. Bloom mode. Is it possible to have lower ppfd levels and still get light burn? Thanks in advance.
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Sciolistic_Steveanswered grow question 2 years ago
i don't think that is light burn. leaves look crispy, glossy -- overfed. pH or nute lockout probably. marijuana brand nutes often instruct way too high of doses... professional Ag brands don't do that.
i would suggest resetting your persepective on nutrients. Try a simple run with normal Ag products and not the overpriced marijuana branded stuff... see that the same ingredients used at lower prices will have the same effects, LOL. Like, avoid "athena" where you spend 300-400 $ for products you can get for 100... AN is even worse.. probably 5-6x more expensive with all that diluted nutrient product and its water weight... and split up into 12 products for no reason other than to bilk ppl out of their money that don't know any bettr, but will adamantly argue that it's worth it... lol.
GrowingGrannieanswered grow question 2 years ago
I'm with Creepy_Steve on this one... I don't think this has anything to do with your lights - it's all the stuff you've been feeding her (too many for me to go take a look at, frankly, to figure out just what it is you ARE feeding her and how much of the basic nutrients she's getting).... Honestly, at this point in her life cycle, it's probably not worth doing anything about anyway (my gut is telling me you've got a phosphorus deficiency) ... she's an auto and autos generally don't live much longer than this one ... so just go easy on her and maybe think about harvesting in a week or two....
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Hashyanswered grow question 2 years ago
Use photone app on your phone, set to your style of light, set the DLI to the amount of hours your running at and around 30-40 DLI should be fine, if it's above 40 DlI it could be the lights causing it.
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