The best thing to do is avoid the big critters. Don't take any item with you that is scented with flowers or food flavors. Start taking yeast tabs, or B2, before you go. The body will dispose of it through the skin and bugs don't like it so they usually leave you alone. Put flowers of sulfur in your pant cuffs to run the ticks off and whatever else you do, leave the chewing gum at home.
Raccoons love it, squirrels adore it.
They'll tear up everything to get at it. Well now, you have made it through the day without incident and you are in camp having your favorite meal. You are feeling mellow, sore, and elated over the days finds. You forget to put the trash up and leave the food sitting on the table. Squirrels will stop at nothing to get at peanut butter, and the raccoons in the Okefenokee Swamp will climb the ropes that you use to hang your backpack way off the ground.