Japanese Beetles

Popillia japonica also sometimes known as the Chafer Beetle Rose chafer and garden chafer are two different varieties. Japanese Beetles are a shiny copper and green beetle about 1/4 to 1/2 inch long that can eat entire flowers as well as foliage. In areas where these are abundant, they can be devastating to the look of your blooms. Japanese beetles eat large round or oblong holes in the leaves leaf edges and flowers (especially those with light colored blooms), sometimes leaving nothing but a leaf skeleton behind. They usually eat the plant from the top down. They are not going to kill the plant, but they can cause considerable damage. They are a problem for about a month to 6 weeks in the summer when they are in their adult flying form. Before that in the spring, they are 1/2 in to 1 inch long grayish white grubs living in the soil and the grass below. They feed on grass and roots at this point. When they start showing up on roses, they appear to have flown in all at once, but this is just because they all mature at about the same time. They are a much bigger problem in areas of the USA east of the Mississippi River. More information can be obtained here: The Japanese Beetle Fact Sheet . OR Control Of Japanese Beetle Adults And Grubs In Home Lawns.