We use Frontline or similar product on our dog, works great. Kills ticks, keeps camper and house flea-free.
I've never had an issue with DEET products. I use less powerful spray when I think it will be enough, use more powerful if hiking in woods. Some non-DEET products kinda sorta work, and we have those on hand for people who are anti-DEET.
We do also use a bunch of citronella candles when we are hanging outside at the picnic table at night. I am never sure how well those work... but they smell nice, and anything to help.
I'm of two minds about broadcast spraying insecticide on property you don't own. On one hand, I'm all for killing insects that are out to bite me. On the other hand, I fully agree with people who don't want someone broadcast spraying chemicals right next to them.
My suggestion if you want to spray your campsite would be to check with the campground management, and ask your neighbors - they may very well ask you to spray their site as well.
