Here's a recipe for a natural mole repellent that has had good results.
Take two handfuls of fresh mint stems – not too woody - and leaves. Put them in a blender with a little water and blend it up to make a slurry.
Take that and put it in a big soup pan. Fill it about halfway full of water and put the slurry in. Bring it to a boil and then let it simmer for 30 minutes.
After it has simmered for 30 minutes, let it cool.
Take six, one-gallon water jugs and fill them equally with the stuff in the pan. Then fill to the top with water and shake them up.
Put the liquid in a watering can and anywhere you see moles working, try to stick in right down in the mole hole and spray it all around the area.
Most people who have tried it say the moles pack up their bags and move out.