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Chafer Beetles

Chafer Beetle Damage

Does your lawn look like this? Patches of dead, spongy grass with areas dug up by crows and raccoons are signs that your lawn may have a chafer beetle infestation.

What is Chafer Beetle?

An invasive turf pest, the European Chafer Beetle was first discovered in the Lower Mainland in 2001 and has continued to spread into surrounding communities, including Surrey.

Living most of its life in the soil, the beetle's wormlike larvae do the most damage by feeding heavily on grass roots, creating visible patches of dead and dying turf. Natural predators such as raccoons and crows help reduce their population, but their digging for the larvae can leave quite a mess.

How to minimize Chafer Beetle infestations

A healthy lawn with dense roots is of no interest to Chafer Beetles. Follow these steps to keep your lawn thick and healthy:

  • Aerate regularly
  • Top dress with compost
  • Over-seed
  • Water Regularly
  • Reduce mowing

Raccoons and crows digging up your lawn are actually helping by removing many of the beetle larvae. Rake to remove any pulled up sections, and add a top layer of compost and grass seed in the spring to help a healthier lawn return.

Alternatively, instead of grass, consider a ground cover that remains green year-round, is drought resistant and requires little or no mowing. Creeping thyme and micro clover are a few examples of the many lawn alternatives available.

Use nematodes to combat Chafer Beetle infestations

For a target method of control, nematodes can be easily applied to your lawn during July. Nematodes are a natural way to treat lawns infested with European chafer beetles. In order for the treatment to be successful, we recommend Surrey residents apply nematode treatment in July and August for best results. In order to water outside the permited watering times in the summer, residents must apply for a special sprinkling permit.

The special sprinkling permit is valid for 14 days and can be renewed once in Stage 1 & 2 of the Outdoor Water Restrictions only.

Under Stage 3, the City will not issue or renew special sprinkling permits, but existing permits will remain valid until the expiry date. Under Stage 4, all permits are no longer valid, regardless of when the resident received the permit.

How to apply for a special sprinkler permit

Visit the second floor of the Engineering Department at City Hall and bring with you either a receipt of nematode purchase or an invoice from a company showing nematode treatment service at your address.

Nematode lawn treatments are most effective if done in late July, after the European chafer eggs have hatched and the young grubs are most vulnerable to Nematode attack.