
Did you just apply nematodes to your lawn to kill grubs or leatherjackets ? Good job! But before you grab the lawnmower: wait a moment.
After applying nematodes, it's important to leave your grass undisturbed for at least 48 hours . The nematodes need this time to properly penetrate the soil and do their work. If you mow too soon, you risk disturbing the topsoil and thus the nematodes. If you want to sow new grass, apply the nematodes and wait one week before sowing new grass.
Why those 48 hours are so important
Nematodes are living organisms that move through the soil via moisture in search of their prey. By mowing immediately, you can:
- Dry out the soil, especially in hot weather
- Pull up or damage the nematodes
- Reduce the chance that they will effectively achieve their goal
Tip: water after application
After spreading the nematodes, you should always thoroughly water the lawn. And keep it moist for two weeks afterward! This makes it easier for the nematodes to spread. This also contributes to their survival and effectiveness.
To summarize:
✅ Applied nematodes? Wait at least 48 hours before mowing.
✅ Keep your lawn moist , especially in the first week.
✅ You can then continue with the maintenance at your leisure.