dont worry much of those dying leaves, remove them even, but begin feeding this plant a well balanced diet, 1/2 strength commercial soil nutrients for instance, or....
dont panic grow organic...either way, she is frikken hungry man, I can hear her tummy from here.
a foliar application done right will hasten repair/healing. more food does not mean more weed, or better weed. follow directions, cut in half.
, she is going to stone you good!