Summer heat and moisture create ideal conditions for several lawn insects in Virginia and North Carolina. Grubs, armyworms, fire ants, chinch bugs, and sod webworms can all become active during warmer months.
These pests don’t cause the same type of damage or appear at the same time. Knowing what to watch for can help you address a small problem before it spreads across the lawn.
Why Are Lawn Insects More Active During Summer?
Warm soil, hot weather, and summer rain make many lawn insects more active. Some lay eggs, while others hatch and begin feeding.
Grass weakened by heat, drought, foot traffic, or poor watering is more likely to show insect damage.
Pest activity also varies by location. Charlotte and Greensboro may see some insects earlier or longer than Roanoke. Rain and soil temperatures can also affect when pests appear.
Which Turf Pests Can Damage Lawns in Summer?
Several summer lawn insects can affect residential yards, business properties, athletic areas, and shared community spaces.
Each one leaves different clues:
Grubs
Grubs are young beetles that live underground and feed on grass roots. Without healthy roots, turf may turn brown, feel soft, or pull away from the soil easily. Birds, skunks, and other animals may also dig through the lawn looking for grubs.
Preventive grub control works best in late spring or early summer when grubs are young. Call for an inspection if brown patches keep spreading or the grass feels loose.
Fall Armyworms
Fall armyworms are caterpillars that eat grass blades. They move in groups and can quickly damage home and commercial lawns.
They’re most active from late summer to fall. Within days, grass may become thin, brown, or uneven. You may also see more birds in the area.
Since the damage spreads quickly, schedule fall armyworm control as soon as you notice these signs.
Fire Ants
Fire ants build dirt mounds in open, sunny areas. They may not cause much damage to grass, but their painful stings can be dangerous.
Mounds near playgrounds, sidewalks, entrances, and sports fields can put people and pets at risk. Fire ants often build more visible mounds during warm, rainy weather, especially in North Carolina.
Chinch Bugs
Chinch bugs feed on grass and are most active in hot, sunny, and dry parts of a lawn. Damage often starts as yellow patches that grow larger and turn brown.
These patches can look like drought stress, but watering usually doesn’t solve the problem. Chinch bug damage often appears near driveways, sidewalks, parking areas, and other surfaces that hold or reflect heat.
An inspection can determine whether insects or dry soil are causing discoloration.
Sod Webworms and Other Surface-Feeding Pests
Sod webworm caterpillars feed on grass blades close to the soil. The lawn may look thin, uneven, or ragged, and some grass blades may appear chewed off.
Small moths flying over the grass in the evening may be another clue, although moth activity alone doesn’t confirm an infestation. Birds feeding in the same area can also indicate caterpillars or other surface-feeding insects.
Professional identification matters because several pests can cause similar damage.
What Does Lawn Insect Damage Look Like?
Watch for changes that continue to worsen rather than improve with normal lawn care.
Common warning signs include:
- Brown, yellow, or thinning patches that keep spreading
- Grass blades that look chewed or cut off
- Spongy turf that lifts away from the soil
- Fire ant mounds or large numbers of visible insects
- Birds, skunks, or other animals repeatedly digging in the grass
- Damaged areas that don’t improve after proper watering
- Rapid lawn decline near commercial entrances, athletic areas, or common spaces
The damage pattern can point to the cause. Insects may leave chewed grass or uneven patches, while sprinkler problems may cause dry areas. Lawn disease can also create spots or rings, so it’s important to check the lawn before treating it.
When Are Summer Lawn Insects Most Likely to Appear?
Pest activity changes throughout the season:
- Late spring to early summer: Beetles start laying eggs in the soil. Grub treatment at this time can stop young grubs before they harm grass roots.
- Midsummer: Check areas near driveways and sidewalks for chinch bugs. Look for chewed grass from sod webworms and new fire ant mounds after rain.
- Late summer into fall: Watch for grass that turns brown or looks eaten within a few days. This may be armyworm damage. Loose grass and animal digging may point to grubs.
Weather affects insect development, so activity may begin earlier or later each year depending on conditions.
How Can You Reduce Summer Turf Pest Problems?
Healthy grass can handle stress and recover from minor damage. Mow your lawn to 2 to 2.5 inches if you have warm-season grass like Bermuda or Zoysia, and to 3 to 4 inches if you have cool-season grass like Tall Fescue or Bluegrass.
Water the lawn deeply when needed, fertilize, and remove thick thatch. Check the lawn often for changes in color, feel, or insect activity.
Don’t apply a general insect spray before you know which pest is present. Good lawn insect control depends on using the right treatment at the right time.
Regular lawn care is helpful for large yards and commercial properties. Damage may start in a hidden area that people don’t check often.
When Should You Request a Professional Lawn Inspection?
Request an inspection if brown patches spread quickly, grass pulls up easily, or you see many insects. Fire ant mounds near sidewalks, playgrounds, sports fields, or entrances should also be treated quickly.
Armyworms can damage large areas in only a few days. If the grass suddenly looks thin or chewed, a lawn care professional can find the pest and recommend the right treatment.
Protect Your Lawn From Summer Insects with The Green Team
Grubs, armyworms, fire ants, chinch bugs, and other pests can damage lawns at different times throughout summer. If you notice changes in your grass, The Green Team can identify the cause and provide the right treatment.
We help homeowners and commercial property managers protect their turf throughout the growing season.
Contact The Green Team to schedule professional lawn care in Roanoke, VA, Greensboro, NC, or Charlotte, NC.
