Help! Need help stopping neighborhood kids?

There are these kids that are really starting to piss me off. on weekends they knock on my door and run. I managed to catch one of them and dragged him by his arm out of my yard and told him if he came back I'm calling the cops. Well now that it's summer break they are just really snapping. They do the usual ding dong ditch but now they are dumping $hitloads of garbage all around my yard, destroying my plants (I caught one little 8itch peeing on my one of them), shoving dirt and sand through a hole in my screen on the window, and yesterday I was woken up at 1:30 from some kid screaming in my window and another banging on my door. I'm afraid of what they're going to do next. I really need help stopping these kids. I don't know their parents or their names. I just really need help catching these little delinquent bastards. I've called the cops before but they aren't any help. Please any legal tips for catching them is accepted.