Milky spore can be applied using a drop or broadcast spreader. The beetles inject it after which the milky spore multiplied inside each insect and as the beetles die the Milky spore increases and spreads. If you are friendly with your neighbors and can coordinate it, you can each treat your own property and within a few years the Japanese beetle problem will lessen. This is not a quick fix but it is one of the things that is safest for the environment and safer for the beneficial insects.
Good information here:
http://web.extension.illinois.... The person who wrote this explains how to apply the Milky spore powder - with a spoon in a grid pattern (ooh, too tedious for this old girl). Also covers the question of neighbors who do not use Milky spore - in short your moles will leave and head for your neighbor's yard to eat at least until your Milky spore migrates over the property line.
The following link shows a product that can be applied with a drop spreader or hand held broadcast spreader. It needs to be applied 3 times during the year for 2 years, but considering that will control the Japanese beetle problem for about 20 years, it seems to be worth a bit of extra effort.
http://www.domyownpestcontrol....
