Start of cal mag def?

Strain: Power plant
In ground July
No fertilizer other than some plant food high in nitrogen and low in p&k. I had this problem with one of my other plants and towards end of flowering all the big fan leaves were crispy and dying. Started out looking like this leaf posted. Any help would be appreciated. Thank you.

Plants in flower need a well balanced diet.. If they don't get it they cannibalize themselves..
Causing leaves to go crispy and die.. You need some flower nutes..

HydoDan said:

Plants in flower need a well balanced diet.. If they don't get it they cannibalize themselves..
Causing leaves to go crispy and die.. You need some flower nutes..

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Ok so i have some jacks bloom booster. Will that work?

Bmiranda said:

Ok so i have some jacks bloom booster. Will that work?

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Thank you for the response

Yep, that should do it..

HydoDan said:

Yep, that should do it..

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Ok ill go ahead and start feed in am!!! Thank you!!!