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Only way to banish leatherjackets from ruining your lawn in just three days

Leatherjackets, the larvae of a crane fly, can make garden grass unsightly with patches of yellow.

Timothy Greene, lawn care expert from iCANLAWN.com, said: “Unless you’ve had them before, it’s highly unlikely that you happen to know what leatherjackets are, and you probably don’t know how to get rid of them either.

“In short, they’re grey and mousy brown grubs that eat the roots of your grass, causing it to die off.

“They mostly go unnoticed as they begin their lives as eggs laid by crane flies and it takes a perfect storm of hot and wet weather to cause them to hatch.”

The first sign you may have them is an increased presence of birds pecking at the lawn in search of a treat.

If they are focusing on a particular area, you may want to lift the turf to see if there are any of the pests beneath.

The expert added: “The second sign you may have them is random patches of yellow in your lawn, that may get bigger as time goes on.

“This is because the leatherjacket bugs are eating the roots of your grass, which causes them to die off and turn yellow.

“Again the easiest way to check if you have an infestation of them is to lift some of the turf where the yellow patches are appearing.”

According to the pro, you should use nematodes to banish leatherjackets. These are microscopic bacterial worms which will kill the pests off and they need to be kept in the fridge because of this.

They work to stop leatherjackets feeding on the lawn in just three days. Timothy noted: “Think of them like sea monkeys for adults. When mixed with water and sprayed on the affected area, they’ll set to work killing off the leatherjackets in your lawn.

“With any product, make sure to read the instructions carefully and follow every step. Once you’re confident your visitors are gone, you can set about repairing the damage they’ve left.”

If you catch them early and the damage is minimal, a quick greening feed should thicken up your lawn and give it the boost of nutrients it needs.

If you have discovered them a little too late, the lawn may need repairing, but luckily this is easy and can be done in a few simple steps.

The lawn care expert continued: “Remove all dead grass in the area, and you can do this by raking the area.

“If this has left this patch uneven to the rest of your lawn, add some topsoil. Rake the topsoil to level. If you haven’t used topsoil, rake your existing soil to really rough it up to help your new seed embed well.

“Sow your new seed. Water the repaired area once a day, for the first six weeks after sowing, you can avoid doing this when it is raining.”


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