Sharon, someone once told me to def. not use those bettle traps that hang on sticks that they sell at the stores, the smell of the trap that lures them to the trap also lures them from other areas to yours making your problem worse.
The little bastages have had one heck of a wild orgy at my house. I planted 10 fruit trees in the front yard about a month ago. Before I planted them they sat in the driveway for about a month (waiting for me to cut down and remove the existing tree in the front yard). I sprayed our rose bush and they all moved to the fruit trees. Went to water the trees one night and it looked like a scene out of a Hitchcock movie. The water hit the tree and a SWARM of the little killers flew out (musta been 100 of em). Now I spray the trees and rose bushes atleast once every 2 weeks. They about denuded one of the cherry trees. It was down to about 6 leaves. It is making a comeback now, covered with buds. Planning to put up a bunch of bird houses to hopefully help control them next year.
Sevin Dust is the best Beetle killing agent out there. Not to mention that it is pretty much pet/animal friendly. I even dust my one dog that is mainly an outside dog and the goat with sevin dust to keep the fleas/ticks and skeeters off them.