Japanese Beetles have arrived in force! This is due to the rainfall last summer that increased survival of the eggs.These beetles skeletonize foliage by feeding between the leaf veins. Assassin bugs, parasitoids, ground beetles, ants, birds, skunks and raccoons are the natural enemies to the japanese beetle.
Removal of these beetles can include hand removal or shaking beetles into buckets of soapy water. You may wish to use an insecticide. Neem based products usually deter feeding for 3-4 days. These should be applied before damage occurs.