Because mole tunneling destroys grass roots, the ridges brown quickly. The most effective way to getrid of moles is to kill them with a trap. Learn how to get rid of moles in your yard before they do extensive damage.
How do you keep moles away?
Try sprinkling powdered red pepper in their tunnel entrances. Sprinkle coffee grounds on the soil to keep moles from tunneling. You may have luck using wind power—setting up vibrations in the ground that will bother moles and send themaway.
Kill the grubs out and moles should leave. Battled those pests for years, I don't like to use poison but finally did. Haven't had a problem with moles for a while now.
Need to kill your grubs. Nurseries sell the products. Good luck.