I don't know much about Pa. I think we all have that trouble. Most hunting land and lot of fishing ponds are leased here in Oklahoma and they are not cheap. One thing you can do is lease exclusive rights to fishing that pond to someone you know for x amount of dollars , get a contract and all. When you catch your trespasser take him to court & sue him for the money you have to return to your friend. Let the word out it might help. When I lived in Mo. with my parents we had a frozen over pond with a nice dock. A group of kids college age stopped and ask if they could go ice skateing. My Dad said sure. a few days later I walked to our pond to find whiskey bottles broken all over the pond and our dock about 1/2 burned down. We just couldn't believe it. I hope you catch them.
