For the South Caroliners, what bugspray works for yall?

We just moved to SC and man is it humid here, we have a ton of crane flys somehow getting past our net into our sunroom, and a bunch of tiny millipede and spiders that keep crawling through conrete cracks etc, ive tried sealing some of it but most is covered and i cant get to it.

What do you guys spray or pay to get sprayed that actually works and is safe for dogs/toddlers/children in general?