Grubs eat the roots of your grass, killing it. The cost of repair and time to repair can be extremely costly. Japanese Beetles tend to be the largest contributor of this problem in Minnesota. Even if you saw one, there is good chance they laid some eggs in your grass. If they do next spring you will likely have a grub problem. I am posting an image so you can know what to be on the lookout for. We do have a preventative grub treatment for the eggs in the lawn as well as an option to take care of bugs like mosquitoes, ticks, fleas, clover mites and the Japanese beetles. Call Jess today and ask about our 15% off sale and get a no obligation quote or go to http://minneapolis.weedmanusa.com and refer to the 15% off grub treatment Weed Man Blog offer.