How to get rid of lawn grubs?

Although grubs are not common in every lawn, they can become a problem. Larger creatures may find them attractive and consider them a tasty treat. Get expert advice on how to eliminate lawn grubs, and prevent them from coming back.

What are grubs?

Larvae of different species of beetles are called "grubs" and are used to describe them. Their eggs lay dormant in the soil during winter and hatch when the ground warms up in spring. Lawn grubs eat plant roots, and when they are grown up, they lay more eggs to continue the cycle.

The lawn grub is small in size and has a darker head. They curl up in a "C" shape once exposed and can typically measure between one and one-half inches in length.

Signs that you have lawn grubs

Grub damage can be confused with other lawn problems, but knowing what to look out for will help you save time and allow you to regain control of your lawn. These signs are:

Increased Activity

Moles, birds, raccoons, and skunks love lawn grubs for their nutritious food. You may be experiencing an increase in activity in the morning and evening hours or signs of digging, which could indicate that you have grubs.

Spongy Texture

Grubs eat roots, so there may not be enough soil to hold the grass in place. You might be able to roll up spongy patches like a carpet and expose the grubs underneath.

Discoloration

The grass will turn yellow and die if the roots become damaged. This can lead to brown patches all over your lawn.

Concentrations High

Wait until there is a lot of rain to test your lawn for grubs. Then, dig one square foot from the area where the grass has become brown and expose the soil below. Your lawn will be treated if there are more than five of them.

How to get rid of lawn grubs?

Nematodes

For those who don't want to use chemicals, nematodes can be used as a natural treatment. These tiny worms are released into the soil and get into the bodies of the grubs. They release bacteria that can multiply and eventually kill the host. It may take several years for nematodes to be established on the lawn.

Pesticides

Apply appropriate treatment if you find more than five grubs per square foot. Water the treatment well (1/2 inch to 1-inch irrigation) to transfer pesticides to the root zone, where they feed. Follow label instructions to dispose of pesticide containers properly. Never pour leftover pesticide down drains for storm sewers.

Depending on where you live, the timing and application of pesticides will vary. To get the best advice on pesticides, contact your local landscapers.

Call us for expert advice about grub control and professional residential and commercial landscaping services.