How to Get Rid of Sod Webworms?

Are you looking for ways to get rid of pesky sod webworms that are wreaking havoc on your lawn? Sod webworms can cause extensive damage to turfgrass and can be difficult to control. Fortunately, there are a few steps you can take to get rid of these annoying insects.

This article will provide an overview of what sod webworms are, how to identify them, and the best methods for controlling and preventing them from damaging your lawn. Keep reading for some helpful tips on getting rid of sod webworms!

What Are Sod Webworms?

Sod webworms are small, tan-colored caterpillars that feed on the crowns and roots of grass plants. These pests can cause significant damage to lawns if left unchecked. The larvae of sod webworms are voracious eaters and can consume large amounts of turfgrass in a short period of time.

Adults lay eggs in the soil, which hatch into larvae that feed on the grass blades. Sod webworms are particularly damaging during the summer months, when they become active and begin consuming turfgrass more vigorously.

Identifying Signs of Sod Webworms

Identifying signs of sod webworms can be a difficult task. The first sign that you may notice is the presence of small caterpillars or worms in your lawn. These creatures are usually light to dark brown and curl into a C-shape when disturbed.

You may also see patches of dead grass or areas of brown grass, as well as small tunnels in the soil where the larvae have been actively feeding. Sod webworms feed on grass blades at night and hide during the day, so it is best to look for them around dusk or dawn.

Another sign of infestation is large flocks of birds gathered in a particular area; these birds are attracted by the presence of sod webworms as they provide a protein rich meal.

8 Effective Ways to Get Rid of Sod Webworms

1. Identify And Inspect the Lawn

Identifying and inspecting your lawn is the first step to getting rid of sod webworms. Look for their small green or yellow larvae, as well as the half-inch cocoons they make in the soil. Sod webworms also leave behind brown patches on the grass, which are evidence of them consuming the grass blades. Once you have identified and inspected your lawn, you can move on to other steps to get rid of sod webworms.

2. Apply Water Sprinklers To the Affected Area

Applying water sprinklers to the affected area is an effective way to get rid of sod webworms. Watering your lawn will help to discourage them from laying eggs and will also help flush out larvae that are already present in the soil. Make sure to use a slow, deep watering method so that the water can reach down into the deeper layers of soil where the worms may be hiding. Pay particular attention to areas that have been affected by webworm activity, as they may need more frequent and longer watering sessions than other parts of your lawn.

3. Attract Beneficial Insects to Eat Sod Webworm Larvae

Attracting beneficial insects to your lawn can be an effective way to get rid of sod webworms. Ladybugs, lacewings, and parasitic wasps are all predators of the larvae and can help reduce and eliminate infestations. Planting flowers that attract these beneficial insects is a great way to naturally encourage them to visit your lawn. They’ll feed on the sod webworms and keep them under control.

4. Make Use of Natural Predators

Natural predators can be an effective way to get rid of sod webworms. Some natural predators that feed on the larval and pupal stages of sod webworms include parasitic wasps, tachinid flies, ground beetles and soldier bugs. These beneficial insects should be encouraged to inhabit your lawn as they will help to keep the populations of sod webworms in check.

5. Try Organic Pesticides or Other Biopesticides

Organic pesticides and biopesticides are an effective way to get rid of sod webworm infestations. These products contain naturally-occurring ingredients that target only the pest, and not other organisms. They can be applied in either liquid or granular form, depending on the desired coverage. Organic pesticides are also non-toxic, so they don’t pose any risk to humans, pets, or the environment.

6. Apply Chemical Insecticides

When it comes to controlling sod webworms, chemical insecticides are one of the most effective ways. These are typically applied in liquid form with a sprayer or through granular applications. Insecticides contain active ingredients that can help reduce and eliminate pest populations from lawns. It’s important to read the instructions on the product label and apply the insecticide according to the directions for best results.

7. Mow Lawn Regularly and Dispose of Clippings

Mowing your lawn regularly and disposing of the clippings is an effective way to get rid of sod webworms. Mowing prevents the larvae from maturing and spreading, while disposing of the clippings helps remove any infestation that may already be present. Regular mowing also encourages healthy grass growth, which can help create a more hostile environment for sod webworms.

8. Monitor Infestations and Re-Treat If Necessary

Monitoring the infestation is essential to ensure that the sod webworms remain under control. Regularly check for signs of active infestations, such as frass, droppings or larvae. If present, re-treating the area with insecticides or other methods may be necessary.

Additional Tips for Getting Rid of Sod Webworms

To make sure sod webworms are completely eradicated from your lawn, it’s important to take additional steps beyond just chemical or biological control.

Mowing the grass regularly and at the right height can help ensure the turf is healthy and less vulnerable to pests. During warm weather, try to mow the lawn every five to seven days to a height of two-and-a-half to three inches. In cooler weather, you can mow every seven to 10 days, but don’t go any higher than three inches. Cutting it too short can make the grass more prone to drought and disease, which in turn makes it more attractive for sod webworm larvae.

It’s also important to water properly. Keep in mind that too much water can create an optimal environment for sod webworm larvae, while not enough water can weaken the turf and make it more susceptible to damage. To get rid of sod webworms without chemicals, use a slow trickle of water on your lawn rather than a single deep soaking if possible.

Adding natural predators such as birds into your yard can help keep pest populations down naturally. Planting native plants that attract these birds will provide them with food sources and create habitat they need while keeping your turf population in check. Alternatively, setting up bird feeders near vulnerable areas may also help draw these predators into your yard.

Finally, be sure not to over fertilize your lawn or apply fertilizer at the wrong time of year when insect populations are highest. Fertilizing a lawn too often or during hot summer months can promote growth of weeds and other pests that may attract sod webworms and other insects into your yard.


In conclusion, sod webworms can be a nuisance if they are left unchecked, but with the proper prevention measures, identification techniques and control options, you can get rid of them quickly and effectively.

Taking proactive steps such as keeping your lawn healthy, aerated and mowed regularly, as well as using biological or chemical treatments when necessary will help ensure that your turf is safe from the damage these pests can cause. With that in mind, you should now be well-equipped to handle any sod webworm infestation you may encounter.