This past weekend  was our first camping trip where the bugs were out. The past camping trip was April 29 and on our return trip we ran into snow, so I know the bugs have not been on for to long. 
Dick_B, I tried to search before I posted this, and I have found that if you don't have the right words  the search comes up with a bunch of useless stuff. 
Thanks everybody for  your replies. If I have time this week I'll wash the camper and give her a good coat of wax.