[DutchmenSport]

If you bug bomb the camper, turn the AC on when you release them. The AC will pull the mist up into the air ducts and any cracks or openings in the ductwork will allow the mist to escape into the insulation and place a layer of protection where you cannot reach or even see.

After 10 days do it again. This kills any eggs that have hatched out and will kill the young flies before they have a chance to breed again. Then, once a year do it again.

This will also keep other bugs out too. The bomb mist will penetrate every nook, get the seams in the slide outs, and place a layer of bug killer everywhere. (IF) anything dares to come in anywhere, the bug will have to crawl through the poison and it will kill them. You may find dead bugs laying around, but they are dead, not living.

Another thing you can do is simply set out Citronella candles. You don't have to light them, just set them out around your camper. That smell will keep anything from even wanting to enter.

Good luck!