Funny thing, those beetles avoid Louisiana because we're host to a large population of stink bugs, which are natural predators of Japanese Beetles.
Some research indicates that any sort of baited trap apparently will attract more to the area than they will catch (worsening the effect). A ground spread or spray on your lawn that kills larva in late July and early August will actually help kill them off.
Only thing I can think of is to wrap them between two sticks with a spiderweb and find an ogre to befriend
