We must have a good crop of grubs this year because the skunks have been going crazy. Every morning there are more holes in the yard.
article on Milky Spore Japanese Beetle Control has some good information. Milky Spore is applied in a grid pattern, one level teaspoon every three or four feet. But summer seems to be the best time for applying Milky Spore to the lawn. Nothing to do now but try to fill in all the thousands of little holes!