There are a couple things a camp can do...
The poison ivy can be sprayed with weed killer. But it will probably come back.
People can be educated as to what poison ivy looks like and what the consequences can be of touching it.
It can be recommended that proper clothing be worn at camp in an attempt to reduce the likelihood of getting posion ivy (long pants, close-toed shoes, socks, etc).
If you want people to be able to be free in the woods without worrying about poison ivy, then maybe someoen can go around camp and identify a few areas that seem to be "poison ivy free zones".
