If you’ve been fighting off slugs and greenflies in your garden, there’s another troublesome critter you may not have considered – the weevil. These small beetles, known for their distinctive long snouts, can be hard to spot but are capable of causing significant harm to your plants.
To help identify and manage this hidden garden threat, gardening expert Calum Maddock at HomeHow.co.uk shares his expert insight on why weevils deserve your attention and how to stop them in their tracks. Weevils are a type of beetle found widely across the UK in gardens, forests, and farmland. They’re incredibly diverse – with over 500 species recorded in Britain – and can feed on a variety of plants, trees and crops. Many are harmless, but others, like the vine weevil, can become a serious garden pest.
They’re often mistaken for other bugs, but one tell-tale feature sets them apart: their long, curved snouts. These snouts aren’t just for show – they help the weevil chew through leaves, buds, stems and even roots.
Vine Weevils are the most notorious and destructive. Their dull black, dimpled bodies are almost 1cm long and they feed on a wide range of plants, including fuchsias, strawberries and primulas. But it’s the larvae you really need to worry about – they feast on plant roots, often killing the plant from below.
Other species to watch for include:
Privet Weevils – Slightly smaller, brown-coloured, and fond of hedges.
Strawberry Blossom Weevils – Tiny but highly damaging to strawberry and raspberry plants.
Green Immigrant Leaf Weevils – Striking in appearance but bad news for fruit trees.
Pea and Bean Weevils, Figwort Weevils and Clay-Coloured Weevils – All have specific plant preferences but can still wreak havoc if left alone.
Weevils can be hard to detect because they’re often nocturnal and blend in with soil or leaves. Adult weevils feed on visible parts of the plant, while their larvae do their damage below the surface, attacking roots and stems.
According to Calum Maddock, there are several effective and environmentally friendly ways to manage a weevil problem:
Encourage birds and amphibians: Robins, blackbirds, frogs and toads all feed on weevils. Creating a garden that attracts them – with water sources, shelter and food – is a natural control method.
Introduce nematodes: These microscopic organisms attack weevil larvae in the soil and are safe for other wildlife.
Use sticky barriers: Placing sticky traps or barriers around pots and planters can prevent adults from laying eggs.
Manual removal: While time-consuming, heading out at night with a torch and removing weevils by hand can be highly effective.
