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So one of my plants has leaves that look like this.. yellow and a bit dry with dark brown/black tips. (don't pay attention to the massive amount of bug damage plz) I'm thinking its a P or K deficiency, possibly both. This plant is about 8-9 months old, started inside moved outside (about 2 months outside) and was very green until recently. Any advice or insights would be appreciated!
Speaking purely from limited personal experience, and no real knowledge or expertise whatsoever, it's doubtful that it's P or K deficiency and more likely to be some form of excess.
Salt buildup, "scorched/burned" by excessive nutrients and subsequent pH imbalance, something like that. At least it always seems to be the case for me and always seems to happen only in late flowering, after there have been several weeks/months of nutrient feeding and whatnot.
There's a problem-solver thing posted around here somewhere, that would make this much easier for the both of us to answer.
Edit: Found it! Check all the posts in that thread.
Damage from insects chomping on them Go ahead and remove those leaves
Ps: it's becoming fall so a lot of the leaves will turn yellow and fall off naturally which is normal. I like to help the plant by removing them when they first start to yellow but that's just me and my OCD they are my plants I can do what I want lol
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