nemastar - Leatherjacket Nematodes
nemastar - Leatherjacket Nematodes
- Produced fresh for your order each week
- Safe to use around children and pets
- No chemicals, just mix with water and apply
- Expert advice from a real person
Not sure it's the right one? WhatsApp us a photo and we'll tell you.
Steinernema carpocapsae
Leatherjacket Nematodes
Brown patches and birds tearing at your lawn point to leatherjackets. nemastar nematodes hunt the grubs down in lawns, borders and veg plots and stop them before the damage spreads.
- No chemical residues
- Safe around people and pets
- A targeted effect
- Found naturally in soil
- Works differently from sprays
At a glance
Key facts
- Targets
- Leatherjackets in lawns and turf, plus cutworms in beds and veg plots
- Nematode
- Steinernema carpocapsae
- Rate
- 0.5 million per m². A 50 million pack treats 100 m²
- Best time
- September to October, while the grubs are small
- Soil temperature
- Above 12°C
Not sure it's leatherjackets? See the signs, photos and best time to treat →
How to apply
Four simple steps
- Keep it coldPut the pack in the fridge (2–8°C) as soon as it arrives.
- Water the area firstApply in the evening or on a dull day, onto moist soil or compost.
- Mix and applyStir the pack into a watering can or sprayer and apply evenly, stirring as you go. Remove any fine filters first.
- Keep it moistWater again afterwards and keep the soil moist for about two weeks.
Questions
Frequently asked questions
How do I know I have leatherjackets?
Yellow or brown patches that spread in autumn and spring, and crows or starlings pecking at the lawn. Water a patch, cover it overnight with black plastic and lift it in the morning: grey-brown legless grubs will be on the surface.
How much do I need for my lawn?
Use 0.5 million per m². Measure your lawn and use the lawn calculator below, which works out the cheapest combination of packs.
Can I treat in spring?
Autumn is best because the grubs are small. If you missed it, a spring treatment in April or May once the soil is above 12°C can still reduce the damage.
When will my order arrive?
Order by 10:00 on Wednesday and it is produced fresh and delivered by tracked courier the following Wednesday or Thursday. Days can change around bank holidays in Ireland and Germany. See ordering and delivery.
How should I store it?
Put the pack in the fridge (2–8°C) as soon as it arrives and use it before the date on the pack. Do not freeze it.
Is it safe for children, pets and the environment?
Yes. The nematodes target insect pests in the soil and are safe to use around children, pets and wildlife.
Does it leave any residue?
Nematodes are living organisms, not chemicals, so there are no chemical residues on your lawn, plants, fruit or vegetables.
Lawn calculator
How many nematodes does your lawn need?
Enter the size of your lawn and we'll work out the right pack for the pest you're treating.
Recommended packs
We round up to whole packs so every part of the lawn gets a full dose.