Lawn grub control is an essential aspect of maintaining a healthy and vibrant lawn. Grubs are the larvae of various beetles, such as Japanese beetles, June bugs, and European chafers. These pests can cause significant damage to lawns by feeding on the roots of grass, leading to brown patches and weakened turf. In this glossary, we will explore what lawn grub control is, the different types of grubs, and effective methods to prevent and treat grub infestations.

What are Grubs?

Grubs are the larval stage of beetles and are commonly found in lawns. They have a C-shaped body with a soft texture and are typically white or cream-colored. Grubs feed on the roots of grass, causing the turf to become weak and susceptible to other diseases and pests. Identifying grubs early on is crucial for effective control and prevention.

Types of Grubs

There are several types of grubs that can infest lawns, with the most common being Japanese beetles, June bugs, and European chafers. Japanese beetles are metallic green with copper-brown wings and are known for their voracious appetite. June bugs, also known as May beetles, are brown beetles that emerge in late spring and early summer. European chafers are tan-colored beetles with a distinctive “C” shape.

Signs of Grub Infestation

It is important to be able to identify the signs of a grub infestation in order to take appropriate action. Some common signs include brown patches in the lawn that do not respond to watering or fertilization, turf that easily lifts away from the soil due to root damage, and an increase in the presence of birds, skunks, or raccoons digging up the lawn in search of grubs.

Preventing Grub Infestations

Prevention is key when it comes to controlling grubs in your lawn. Here are some effective methods to prevent grub infestations:

1. Proper Lawn Maintenance

Maintaining a healthy lawn is the first line of defense against grubs. This includes regular mowing, watering, and fertilizing. A well-maintained lawn is less likely to attract beetles looking for a place to lay their eggs.

2. Overseeding

Overseeding involves spreading grass seed over existing turf to promote thick and healthy grass growth. A dense lawn can withstand grub feeding better than a sparse one.

3. Natural Predators

Encouraging natural predators of grubs, such as birds and beneficial insects like nematodes, can help keep grub populations in check. Providing bird feeders and creating a diverse garden ecosystem can attract these natural predators.

4. Biological Control

Biological control involves using natural enemies of grubs, such as parasitic wasps or milky spore disease, to reduce grub populations. These methods are environmentally friendly and can be effective in controlling grubs.

Treating Grub Infestations

If you already have a grub infestation in your lawn, there are several treatment options available:

1. Insecticides

Insecticides specifically formulated for grub control can be applied to the lawn to kill the larvae. It is important to follow the instructions carefully and apply the insecticide at the right time for maximum effectiveness.

2. Nematodes

Nematodes are microscopic worms that can be applied to the lawn to target and kill grubs. They are a natural and environmentally friendly option for grub control.

3. Professional Lawn Care Services

If you are unsure about how to effectively treat a grub infestation, it is best to consult with a professional lawn care service. They have the expertise and knowledge to assess the situation and recommend the most appropriate treatment.


Lawn grub control is an important aspect of maintaining a healthy and beautiful lawn. By understanding what grubs are, identifying signs of infestation, and implementing preventive measures, you can effectively control and prevent grub infestations. If you already have a grub problem, there are treatment options available, including insecticides, nematodes, and professional lawn care services. Remember to always follow the instructions carefully and consult with experts when needed.