Leatherjacket Nematodes 500 sq.m Lawn Treatment Gardening Naturally

This larger pack of leatherjacket nematodes is designed for treating bigger lawns or areas with heavier leatherjacket infestations. Leatherjackets are the underground larvae of crane flies (often called daddy-long-legs) and they feed on grass roots, which can lead to yellowing grass, weak turf and patchy lawns.

If you are treating a smaller lawn, see our Leatherjacket Nematodes 100 sq.m pack.

How leatherjacket nematodes work

Once applied with water, the microscopic nematodes move through the soil and locate leatherjacket larvae. They help reduce larval activity naturally, allowing grass roots to recover and lawns to regain strength.

When to apply

• Best applied from late August to October
• Spring treatment may help if damage continues
• Apply when soil temperature is above 5°C. Use our soil thermometer to help track temperature.
• Water after application and keep soil moist

Signs of leatherjackets in lawns

• Yellow or thinning grass
• Bare patches in turf
• Lawn that lifts easily
• Birds pecking at the lawn

How to apply

1. Water the lawn before treatment if dry.
2. Mix nematodes with water following the instructions.
3. Apply evenly using a nematode watering can or nematode applicator.
4. Water again after treatment.
5. Keep soil moist for at least 7 days.

Storage

This is a live biological product and should be stored in the refrigerator on arrival. Nematodes normally have a shelf life of around two weeks and should be used before the expiry date.