How to get rid of voles in the garden

Voles can be frustrating creatures in the garden, stealing fruits and damaging plants. Most of the time gardeners and voles co-exist without problems but when populations peak and food runs short, voles are more likely to become a nuisance. Prevention is always the first and most sustainable line of defence so check our suggestions of ways to deter thehm from damaging your plants.

Could I mistake voles for anything else?

Unlike moles, voles leave visible surface runways and small, open entry holes, and their diet is primarily vegetarian, distinguishing them from mice which have larger ears and eyes

Shrews, unlike voles, are predators which destroy many insects and slugs and so are helpful to gardeners. They have a thin, pointy snout, almost invisible ears, and relatively short tails. They are very small and are mainly active at night.

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What damage is caused by voles in gardens?

Seeds are often eaten by voles. They will invade the greenhouse to carry off newly sown seeds from seed trays. The seeds of trees are also often eaten by voles, but this is usually helpful to gardeners, as it prevents large numbers of unwanted seedlings from appearing.

Bulbs, corms and tubers may be consumed by bank voles, especially newly planted ones. They like tulips and crocuses in the autumn.

Fruit and vegetables may be taken by voles. Voles often feed on brassicas and will strip Brussels sprouts from the stems. They also enjoy eating roots – beetroot and stored potatoes, for example. Soft fruit is a favourite food, especially strawberries. Bank voles will even climb trees for fruit and berries.

Bark may be stripped by mice and voles at ground level. Voles are particularly well known for this, often concentrating on one particular species of tree. Beech trees are the usual favourites. Bank voles can strip bark higher up, with damage occurring at 0.6-1.8m from the ground. Shrubs and herbaceous plants are also attacked by both animals.

Banks can be undermined by the burrows of these animals, especially those of the water vole which are around ponds and streams. However water voles are rare and such damage is not common.

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What can I do to deter voles?

Seeds and bulbs can be started off indoors in pots. Cover the pot surface with fine mesh wire netting (6.5mm) to stop voles tunnelling to find them. A sound concrete floor can exclude them from the greenhouse. You can also cover seed trays with a propagator lid.

Outside, wire netting (around 6mm) placed over buried bulbs and seeds can protect them. It can also be wrapped around tree stems and buried slightly to guard tree and shrub stems from gnawing. Plastic tree guards are also useful - make sure it extends a few centimetres under ground level.

Where pond banks are being undermined, laying wire netting on the bank should exclude the voles and protect the bank.

Mowing long grass and cutting back vegetation will eliminate their cover and reduce the damage caused by voles. Avoid using cut grass and straw as a mulch, as this provides an ideal habitat for voles. Doing this will help remove their protective highways around the garden.

Spilled birdseed is very attractive to them and other pests, such as rats. Consider using trays under feeders to catch fallen seed, or temporarily removing feeders if vole activity is high.

Harvest your fruit and veg regularly and promptly clear any fallen fruit or vegetables from under fruit trees or from vegetable patches, as these provide an easy food source.

Are there dressings I can use to protect my seeds and bulbs from voles?

The old remedies involving poisons like lead are no longer allowed and, in any case, are very risky for the gardener to use. There are no safe, effective modern substitutes. 

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Don't voles do some good too?

They are important food for owls, foxes and other wildlife, so unless they are troublesome, they should be left alone. Voles also eat insects and weed seeds; in this respect, they are helpful to gardeners.

What types of voles am I likely to see in my garden?

The following can all be found in gardens in this country:

Short-tailed vole (Microtus agrestis) Unlike mice, voles have short noses and ears. The tail is one-third of the length of the rest of the vole. They are a greyish-brown colour. They are active in the day but are seldom seen and less active in the winter. Short-tailed voles are 9.5-13.5cm long and breed all summer. As many as one per square metre has been recorded. They live in rough grass, making above-ground domed nests and tunnels in the grass. They feed mainly on grass shoots but also eat other plant shoots. Fibrous straw mulches also make ideal habitats for voles to thrive in.

Bank vole (Clethrionomys glareolus) These live in banks, hedges and around shrubs. They’re 8-11cm long with reddish-brown fur and a light underside. They feed on seeds and fruit, living in similar nests and runs to the short-tailed vole.

Water vole (Arvicola amphibius) This is much bigger, at 15-20cm, and less common than the others, with dark brown fur, and brown/grey underparts. It lives around water, including garden ponds, feeding mainly on plants. Although sometimes known as water rats, water voles have blunter heads and smaller tails, and do not spread diseases or cause the same damage as land rats.

Can you tell me more about voles?

Voles are small mammals that sometimes feed on garden plants. They are shy nocturnal animals, so there could be more of them in your garden than you suspect. You are most likely to see them when they’re brought into the house by cats. Rats and house mice are seldom a problem in gardens, although rats may take up residence in compost bins and garden sheds. Dealing with rats is usually a job for the professional – ask your council for help.

Voles commonly live in gardens, where their vegetarian diet can cause problems for gardeners. For most of the year their numbers tend to remain low. However, in autumn they can build up high populations and cause a great deal of damage into early winter.

Learn how to deter rats from your garden