It's probably Frost - http://boards.cannabis.com/outdoor-g...ery-seeds.html
F0rmerSm0ker Reviewed by F0rmerSm0ker on . black tips on leaves. harvesting. please reply so i did some searching on the forum of what it could be. and i guess a couple replys from stink said it could be a viral thing maybe called black mildew or some other of that nature. im harvesting today...... in like 4 hours.. i just noticed this.. its only on the tips of new growth. and most of the biggest and oldest fan leaves had it. i went away for a few days and my plants bucket got drenched and it drowned in water for a few days.. ive been trying to bring the plant back from Rating: 5