There was a garden center near us and the owner recommended applying milky spores to the yard, it kills the grubs the moles are after. He said it could take a year or two for them to multiply and do the trick. Also he said to take Wrigley’s gum (green wrapper) put on a surgical glove, (moles hate human scent). Put an unwrapped stick down in the mole run. They really have a taste for the gum and when they eat it they can not digest it and die. I have no idea if either suggestion works.