I live in a heavily wooded lot, so bugs come in my house as they please, and i have two spiders in my grow room, and they seem to keep most of the flies an gnats out. They are just little tikes, if they get any bigger ill probably kill them.
Hmm can u see the actual spiders? If not u might have a bad infestation of spider mites there very bad news ..
And I wouldn't wanna smoke spider webs spiders on the wall would be ok spider webs in the bud would b3 bad lol