Chafer Nematodes - Gardening Naturally - 100 sqm

Chafer nematodes (Heterorhabditis bacteriophora) provide a natural solution for controlling chafer...

Best current price£26.99from B&Q

Best offers

Shopping.co.uk recommended and popular offers

Lowest priceTrusted

B&Q£26.99Visit shop

- Chafer Grub Nematodes Natural Organic Pest Control Treats KillerFor Grubs 100 Sqm

Visit shop

All Offers

3 offers from £26.99

View price history by clicking the chart icon.

B&Q - Chafer Grub Nematodes Natural Organic Pest Control Treats KillerFor Grubs 100 Sqm

Free delivery in 1–3 days

£26.99

Visit shop

eBayChafer Grub Nematodes Natural Pet Friendly Pest Control Treats Up To 100sqm

Free delivery in 1–3 days

£26.99

Visit shop

Gardening Naturally UKChafer Nematodes 100 Sqm Gardening Naturally

£5.49 delivery

£26.99

Visit shop

Product Information

Full details

Gardening Naturally Chafer Nematodes are an organic pest control solution designed for homeowners struggling with chafer beetle larvae infestations in their lawns. By using microscopic organisms to target root-eating grubs, this product restores lawn health without chemicals; however, because they are live organisms, they must be refrigerated upon arrival and applied strictly within specific soil temperature windows to be effective.

All features

Colour	Multicolor
Model Part Number	CN50
Brand	B&Q

Extended Product Information

FAQs

Are these safe for my dog to walk on the lawn after application?

Yes, these nematodes are non-toxic to pets, birds, and other wildlife.

When is the best time to apply them?

The ideal times are August to October or April to May, provided soil temperatures are above 10°C.

What happens if I forget to put them in the fridge?

The product is live and will rapidly degrade at room temperature. Always refrigerate immediately to maintain viability.

Can I use these with other lawn chemicals?

It is recommended to stop using synthetic pesticides before and during the application of nematodes, as chemicals can kill the organisms.

How do I know if I have a chafer grub problem?

Look for patches of yellowing, dying grass and increased bird activity, as birds dig into the turf specifically to eat the grubs.

How many packs do I need for a larger lawn?

One pack covers 100 square metres; simply multiply the number of packs based on your lawn's total square footage.

Troubleshooting

Nematodes not effectively controlling grubs

Check if soil temperatures were consistently above 10°C and ensure the area was kept moist for the full two-week period.

Difficulty seeing results immediately

Nematodes are a biological control, not an instant chemical poison. It can take several weeks to notice a significant reduction in larvae population.

Pros and Cons

Pros

100% organic and non-toxic to wildlife
Effective at preventing lawn damage caused by digging birds
Easy to apply via simple watering
Covers a generous 100sqm area

Cons

Strict temperature requirements (soil must be above 10°C)
Short shelf life as they are live organisms
Requires consistent soil moisture for two weeks post-application
Seasonal availability restricted to specific windows

Setup, Compatibility & Care

Storage: As these are live organisms, place them in your refrigerator immediately upon delivery. Use the product within two weeks of receipt.
Temperature Check: Ensure soil temperatures are consistently above 10°C. If the ground is frozen or too cold, the nematodes will not be active.
Preparation: Mix the contents of the pack according to the instructions into a watering can.
Application: Water the affected area evenly. It is best to apply during the evening or on an overcast day to avoid direct UV light exposure.
Maintenance: You must keep the lawn soil consistently moist for at least 14 days following application to allow the nematodes to thrive and migrate through the root zone.