Last few days

I im in the last few days of flowering, it will be 65 days on sunday which is the recommended day for harvest. one of my plants top leaves are starting to become very brittle and turning a dark green color on the tips of the leaves. Can anyone tell me if i should do anything or just leave it seen as it is the last few days?

Thanks

dont go by days, go by trichrome color. a 30x microscope will show the tri's they look like mushrooms, when they darken chop down. Or look at the calyxes which are red hairs, when they turn red its ready just not as accurate as a microscope. If you flush properly, all your fan leaves should be yellowed and falling off by harvest