It's necessary to determine whether the varmint is a mole (taupe)
or a vole (rat-taupe
). Moles' tunnels are just below the surface, and moles do not typically attack plants (they eat insects and worms). Voles' tunnels are deeper, in galleries, and they will definitely bother pretty much any plant. I have a placard
full of infernal devices to deal with both, tho I usually don't go after moles. The most effective thing for voles I've found is the exploding-firecracker device sold in garden shops, called a détaupeur
, but it's rather pricey per use. The explosion is triggered by a plunger which fits into a plastic stake. For voles, you should get the plunger which is designed for them, it's a bit different from the standard one for moles. My neighbor swears by tourteau de ricin
, which is sold, for instance, here.
. it's very toxic for pets, so if you do use it, be sure to put it well into the vole's tunnel and cover the entry very carefully. There are many different traps sold (their number suggests that none is perfect), and I've tried most of them. The ultrasound devices which are supposed to chase them away don't seem to work real well, but they are certainly safe.