Vine Weevil
Pest · Commonly affects: Heucheras, Primulas, Rhododendrons, Camellias, Euonymus, Strawberries, Cyclamen, Fuchsias
Vine weevil is a serious pest of container plants and sheltered borders across the UK. Adult beetles notch leaves at night, but the root-feeding grubs cause the greatest losses. Plants in pots can collapse surprisingly quickly, particularly heucheras, primulas and shrubs kept in compost through autumn and winter.
How to identify it
Adults are dull black or dark brown, flightless beetles, roughly 8 to 12 mm long, with a pear-shaped body and faint pale speckling. They hide by day and leave neat, crescent-shaped notches around leaf edges. The grubs are creamy white, C-shaped and legless, with a light brown head, growing to about 10 mm. Tip a struggling pot from its container and inspect the rootball for grubs, missing roots or loose compost.
Damage
Adults make distinctive edge notches, usually more unsightly than dangerous. Grubs eat fine roots and may chew into crowns, stopping water uptake and causing plants to wilt, yellow or die. Pot-grown plants are especially at risk because grubs are concentrated in a small rootball. Root damage can be greatest in late summer, autumn and spring.
Prevention
Check rootballs of bought plants and repotted containers for grubs before bringing them into the garden. Use clean pots and fresh, peat-free compost where possible, removing old root debris between crops. Raise containers on feet and avoid standing them tightly together, which gives adults sheltered routes. Inspect susceptible plants regularly at night with a torch. Grow robust plants in suitable-sized pots, and do not leave weakened or dead plants in place over winter.
How to manage it
Pick adult beetles by hand after dark, especially in late spring and summer, and remove them from the growing area. If a pot is badly affected, tip out the rootball, collect all visible grubs and replant the cleaned plant in fresh compost. Biological nematodes can be applied to moist compost or soil when conditions are suitable. Continue checking nearby containers, as adults may have laid eggs across a group of plants.
Vine Weevil: frequently asked questions
How do I identify vine weevil?
Adults are dull black or dark brown, flightless beetles, roughly 8 to 12 mm long, with a pear-shaped body and faint pale speckling.
How do I prevent vine weevil?
Check rootballs of bought plants and repotted containers for grubs before bringing them into the garden.
How do I get rid of vine weevil?
Pick adult beetles by hand after dark, especially in late spring and summer, and remove them from the growing area.
General guidance for UK home gardens and allotments, focused on prevention and non-chemical control. For a confirmed diagnosis, the RHS or a local garden centre can help. Page updated 19 Sep 2026.