Vigilance is key here! Anything that kills them works, you just have to keep up with the hatching cycle. Give yourself a 4 weeks before flower or they can come back while you have buds and then you can't spray(or I won't)
So ya every 2-3 days without fail for at least 2 weeks then maybe every 4 until you're positive there gone. Clean your floors, clean your crack, clean your vents, they're tiny and ride on the wind just like spiders! Hopefully you have a small operation.
Soap, Castile Soaps, Neem, Jacks, rosemary oils, hydrogen peroxide, rubbing alcohol are all contact killers and not really systemic. (neems debated) thats in the low to high risk of burning plants order roughly. Those can be used right up to flower. but they only kill on contact so you have to keep up. The avid, forbids and bug bombs are great but you gotta grow that out of the plant like 6-8 weeks before you flower in my experience to pass labs.