mold and bugs

im transplanting my plants at 6 inches from indoor to outdoor. it will be in the forest...and i need to know if i should buy some fungicide/pestiside or if its uncommon...and if i do need that for sure how much and when to spray them.

im not sure to when to spray them because i dont want the spray to get in with the buds.

and also should i put protection around them at 6 inches outdoor or will they be fine..and if so until when