Vine weevil larvae and chafer grubs are two of the most damaging soil pests in UK gardens, feeding unseen on plant and grass roots. Vine weevil larvae attack a wide range of ornamental and edible plants, often killing them by destroying the root system. Chafer grubs, on the other hand, feed on lawn roots, causing patches of dead grass that can be easily lifted. Lawns may also suffer further damage as birds and wildlife dig for the grubs.

How to Control the Chafer Grubs & Vine Weevils

Agralan Chafer Grub & Vine Weevil Dual Control Nematodes offer a powerful, natural solution to both pests in one treatment. These beneficial nematodes (Heterorhabditis bacteriophora) actively seek out and infect the larvae in the soil, releasing bacteria that quickly kill them. The nematodes then multiply within the host, helping to spread control throughout the treated area. This biological method targets only the pests, making it completely safe for children, pets, wildlife and beneficial insects, and suitable for use on all plants, including fruit and vegetables.

How to Use Nematodes

Mix the nematodes with water and apply to moist soil or compost using a watering can or nematode applicator. For best results, apply when soil temperatures are above 12°C, typically from spring through to early autumn (March to October). Ensure the soil remains moist before and after application to help the nematodes move effectively. As this is a live product, store in the fridge and use before the expiry date. Regular monitoring and timely application will help prevent severe damage from both vine weevil larvae and chafer grubs.