Crimson King Maple Insect problem?
This really looks like Japanese beetle damage. These guys will eat plant material from roses to grapevines, and they are voracious eaters. You need to get a spray that controls beetles, and make sure it specifies Japanese beetle control on the label. Be sure to follow the directions. You should be able to find it at a big box store or a nursery. The other option is to hand pick them and drop them into a bucket of soapy water. They are fairly easy to catch. Here are a few websites that will give you information on the Japanese beetle: http://msue.anr.msu.edu/resources/japanese-beetle http://www.michigangardener.com/meet-the-beetles-the-japanese-beetles/ Hope this was helpful. Feel free to contact us again if you have further questions.