Moles mainly have a carnivorous diet meaning they eat mostly insects, grubs and earthworms. No type of mole in Britain, be it the Eastern Mole or the Star-Nosed Mole is a type of rodent, so gnawing damage found on plants is unlikely to have been the work of moles.
Moles tunnels however are frequently used by rodents to attack plants from underground, making moles a part of the problem.
Moles can make two types of tunnels, one for feeding and one for joining up the feeding tunnels. The feeding tunnels are shallow can often be seen as a raised ridge in gardens. The deeper tunnels cause the excavated build up of soil that can be seen on the surface!
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