Thank MrFishy i will try to get better pics later but i will try to give you more info.

I am growing outdoors in buckets and using 20/20/20 for veg and 15/30/15 for flower (just a learning year) good ol bagseed.
I water and give nutes on a weekly schedule and ph balanced.
Everything has been going great up until last week when i noticed some on the end of a leaf. It was touching a branch so i cut off the leaf and wiped the branch off where it was touching. When i went back a few days later and look where the leaf was toching the branch it seemed to be growing again. Its a brown powdery residue.
It seems to spread fast i might have to pull it before it goes to far.

Thank again