Hey as a first grower I didnt know about them but i realised today when checking on my 20 plants that are hung upside down that they were infested with caterpillers (small & brown) I removed all of them ( i think ) but one of the buds is like browny and looks abid moldy, do i need to remove it? does it spread? should i keep that whole plant away from the others? HELP!?!?