22 days of flowering, brown spots on tops???????<3<3<3

Hey all what could this be???

On 22 days of flowering and the tops are getting brown spots and are starting to shrivel up...

what coudl it be heat of some nute issue???

<3<3<3
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definitely not a heat issue...its either a dificiency of some sort, or lockout due to salt buildup or ph imbalance...what do you have for soil, what are you feeding it, and how much, etc? and what is the ph of your soil?

yes, more info is needed. I had a problem similar and i had the water ph too low and it restricted the nitrogen uptake and leaves started to look just like yours. Don't think its heat but if you have it over 85f it can stop production, and make it smell 2x as much too! Probably from the cooking of all your THC! eek!