Pick them off. Then get nematodes from www.gardensalive.com and spray those in your lawn. They will eat the grubs, so next year you will be beetle free!
I posted this in Dems' thread but Liquid Rotenone/Pyrethrin is a natural, non-toxic pesticide that is awesome against a host of bugs, including Japanese beetles.
Pick them off. Then get nematodes from www.gardensalive.com and spray those in your lawn. They will eat the grubs, so next year you will be beetle free!
Gardens Alive! is one of my favorite gardening stores. The nematodes don't quite work THAT fast, but they will greatly reduce the numbers for the following year.
I posted this in Dems' thread but Liquid Rotenone/Pyrethrin is a natural, non-toxic pesticide that is awesome against a host of bugs, including Japanese beetles.