Key Takeaways

Chinch bugs are Public Enemy #1 when it comes to Florida lawn pests.

• Identifying the specific species in your yard is essential because each pest targets different parts of the grass, from the root system to the inner stems.
• Certain grass varieties are more vulnerable to specific intruders, such as St. Augustine being the primary target for destructive Chinch Bugs.
• Physical clues like spongy soil, “spit” on grass blades, or turf that peels up like a carpet can help you diagnose an infestation before the grass dies.
• Working with a professional is often the most reliable solution, as they have the expertise to time treatments correctly despite Florida’s challenging heat and rain.

Types of Lawn Pests in Florida

Is your grass getting eaten alive by lawn pests? It happens to many homeowners in Florida. The first step to finding a solution is recognizing the problem – and the second step is identifying exactly which type of pest you’re dealing with. After all, there are many types of lawn pests, and in the battle against them, understanding their unique habits and life cycles is key to effective treatment and prevention.

Lawn pests will feast on your lawn from blade to root. So, which type of lawn pest do you have? Here is what you should look for.

What Are the Most Common Florida Lawn Pests?

Chinch Bugs

These are perhaps the most notorious pests for Florida homeowners, specifically those with St. Augustine grass. They are tiny (about 1/5 inch) and black with white, diamond-patterned wings.

• How They Damage Your Lawn: They use needle-like mouthparts to suck the sap out of grass blades while simultaneously injecting a toxin that prevents the plant from transporting water.
• What They Look Like: Tiny (about ⅕” long), black-bodied insects with white wings that feature a distinctive black triangular or diamond-shaped mark in the center.
• How to Spot Them: Look for yellow or brown patches that begin in the hottest, sunniest parts of the yard or along concrete driveways and sidewalks.

Mole Crickets

This strange-looking insect is called a mole cricket.

People sometimes call mole crickets “shovels with legs” due to their digging ability. These subterranean insects are brown, with a velvety texture and powerful front claws. They are most active in Bahia and Bermuda lawns.

• How They Damage Your Lawn: They tunnel through the soil, severing roots and uprooting grass, which causes the turf to dry out and die.
• What They Look Like: Large (up to 1.5”), light-brown, velvety insects with oversized, lobster-like front claws and beady eyes.
• How to Spot Them: Your lawn will feel “spongy” or soft when you walk on it, and you may see small mounds of pushed-up soil or visible tunnels after a heavy rain.

Hunting Billbugs

Small, dark weevils with a long snout. They are particularly fond of Zoysia and Bermuda grass types.

• How They Damage Your Lawn: The larvae bore into the stems of the grass and eat their way down to the crown, killing the plant from the inside out.
• What They Look Like: Small, dull-colored beetles (about ½” long) with a very long, downward-curved snout (beak).
• How to Spot Them: Pull on a handful of brown grass – if it snaps off easily at the soil line and you see sawdust-like debris (frass) at the tips, Billbugs are likely present.

Armyworms

Close-up view of an armyworm munching on a leaf. Mmmm.

These voracious caterpillars move in large, coordinated groups — like an army, hence the name — as they march across your turf, eating everything in their path.

• How They Damage Your Lawn: They eat the green tissue of the leaf blades, often leaving nothing but the tough veins or completely bare soil behind.
• What They Look Like: Green, brown, or black caterpillars with distinct stripes running down their sides and an inverted “Y” shape on the front of their dark heads.
• How to Spot Them: You’ll notice your grass looks ragged or transparent, and you may see an influx of birds (like crows or starlings) constantly pecking at your lawn to feed on them.

Sod Webworms

Small, pale green or tan caterpillars that hide in the thatch during the day and feed at night. They are known for creating silk-lined tunnels in the soil.

• How They Damage Your Lawn: They chew on the grass blades, leading to “notched” leaves and eventually large, unsightly brown or bare patches.
• What They Look Like: Slender, pale green or tan caterpillars (about 1” long) with dark spots running along their bodies.
• How to Spot Them: Look for small, white moths flying in a zigzag pattern over the grass at dusk, or look closely at the soil surface for tiny, greenish-brown pellets (waste) and silk webbing.

White Grubs (Beetle Larvae)

A white grub (beetle larva) spotted in soil.

The C-shaped, milky-white larvae of beetles. They can be a few different beetle species, like the May/June beetle or Masked Chafer. They live entirely underground, out of sight.

• How They Damage Your Lawn: They feed exclusively on the root system, essentially disconnecting the grass from its water and nutrient source.
• What They Look Like: Plump, C-shaped, milky-white larvae with brownish heads and six distinct legs near the front of their bodies.
• How to Spot Them: Damaged turf will turn brown and can be peeled back or rolled up easily like a piece of loose carpet because the roots are gone.

Fire Ants

Aggressive, reddish-brown stinging ants that build large, sandy mounds. While they don’t eat the grass, they are a significant hazard to people and pets.

• How They Damage Your Lawn: Their massive mounds can smother grass and create unsightly “bald spots” in the yard, while their tunneling can dry out the soil around roots.
• What They Look Like: Small, reddish-brown to reddish-black ants. They are best identified by their sheer numbers and the aggressive way they swarm when disturbed.
• How to Spot Them: The presence of large, conical mounds of loose soil, especially after rainfall, and an immediate aggressive “swarming” response if the mound is disturbed.

Two-Lined Spittlebugs

A two-lined spittlebug.

These pests thrive in high-moisture environments and thick thatch layers. They are easily identified by the two orange-red stripes across their dark wings.

• How They Damage Your Lawn: Both nymphs and adults suck juices from the grass, causing it to turn yellow, then purple, and eventually brown.
• What They Look Like: The adults are small, black, oval-shaped insects with two striking bright orange-red lines across their backs.
• How to Spot Them: Look for masses of white, frothy foam (resembling spit) clustered near the base of the grass blades or in the thatch layer.

Which Lawn Pests Are the Biggest Threat to Your Grass?

Lawn pests have different preferences about the types of grass they inhabit and feed on.

Do you know what type of grass you have on your property? If so, you can narrow down which lawn pests may be the biggest threats.

To help you out, we’ve put together this handy reference chart that breaks down the most common grass types in Florida and the biggest pest threats.

How Do You Eliminate Florida Lawn Pests?

As we said at the beginning of this article, it’s important to know which type of lawn pest you’re dealing with. Why? Because different lawn pests require specific chemical treatments — ranging from granular baits to liquid systemics — often applied in unique ways. Even with the right product, factors like heavy rain and high heat mean results aren’t guaranteed, and improper application can further stress your grass.

For most infestations, you are better off working with a lawn pest control expert who has the experience and equipment to handle these pests effectively.

If you’re considering natural remedies, beware that they often act only as temporary deterrents and rarely reach the deep-seated colonies or subterranean larvae that cause long-term damage.

We also recommend following these lawn pest prevention tips because a little bit of proactive maintenance can go a long way, saving you time and money.

For a Fast Solution, Try Our Professional Lawn Pest Treatment

If an infestation has already taken hold, or if you want to prevent future lawn pests from arriving, give us a call. Consulting with a professional is the most effective path forward.

Our lawn care experts will provide personalized recommendations and effective treatments to ensure your lawn remains a healthy, vibrant part of your home.