Usually mold is just an issue if you have high humidity and poor air circulation.
You might try leaving a fan going 24/7 for awhile, but this isn't mold.
killerweed420 Reviewed by killerweed420 on . Is this Mold? What to do? PICS..... Hi all, I'm in very early flower indoors under 1000w HPS, in soil and coco fiber w perilite. temps are 80's and 90's. I feed with 10-30-20 one part nutes. Something is affecting my plants, it starts on the grow tips of the lower branches and works its way up the plant. Affected new growth tips are droopy and turn black or grey and die while still very small, essentially ending most growth of the branch it heads. Also, some leaf stems suddenly wither and shrink to the width of a human hair, Rating: 5