 Over the past two weeks, Minnesota has been plagued by the Japanese beetle. That's an invasive leaf-eating plant that can do a lot of damage in a short amount of time. University of Minnesota expert Tavira Krischic says Japanese beetles are unlike other common insects we see this time of year as they're part of the dung beetle family and they're very strong-willed. Nothing kills them. They have a very big, strong body armor. They're about five times larger than a leaf-eating beetle, so the birds don't tend to eat them. They're hard to crack open.