I tend to welcome wasps into my garden, they are the reason i am able to harvest my cabbage family vegetables.
I do not like them in the house, nor do i welcome flies and ants....
reach for the Raid you say?
Try something different.
Do not laugh, everyone who has watched "My Fat Greek Wedding" knows about the old Greek father who believes Windex fixes every thing and i am half Greek...
Fast forward, where i am staying at a rural home and the wasps and the flies are inside...and there is no Raid. What to do? I grab the handiest thing, which was a bottle of windex - the one with ammonia and menthol. I spray and they die, quickly.
Minimal residue, I like this a lot.
I tried it on ants, they dies also, but not as quickly.
Try it is all i will say, it worked for me