I was taught the same thing about moles & loosening soil & eating grubs. My mom would use some sort of small, sharp-edged stones when she planted any new plants/bulbs/seeds. The moles don't like the sharp stones.
The only other way I've heard to be effective in their eradication is poison..of course, i could send you our cat Alexander. He crawls along the ground listening for their digging noises - when he hears them, he digs straight down & snatches them right out of the dirt. We have a steady supply of dead moles by our back door. LOL
Seriously, let us know what works for you.
Stay calm and carry on.