Let's see...I've tried the talprid worms, the plunger trap, the mole cat, the poison peanuts....all worthless.  I was fed up and called in the mole pros who used these traps.  During the span of Jan-July, they killed 7 moles on my 0.4 acres.  On labor day, I power raked, aerated, and reseeded.  About a week later the moles started tearing it all up again!!  I couldn't financially justify bringing them back so I learned to use these traps myself and took out 4 of the critters since.  11 of them in less than a year!