Lawn Insect Control in Lexington, SC & Surrounding Areas

Insects That Cause Turf Decline In Lexington, SC

Armyworms and Other Harmful Lawn Insects

In South Carolina, late summer and fall are extremely difficult to mow your lawn due to heavy infestations of armyworms. Armyworms prefer Bermudagrass and Zoysiagrass, and they can create brown, thin or bare patches very quickly. By the time you realize you have an armyworm infestation, the armyworms have already done a major amount of damage. Lawns in Lexington have a huge window of opportunity to become a major problem because the climate and high humidity makes mowing conditions optimal for the armyworms. Call Sparta Lawn Care as soon as possible if you notice any brown grass or circular areas that lack grass. The infestation will quickly spread to the whole lawn if nothing is done.

How to Identify Armyworm Activity

Visual signs of armyworms often resemble drought stress or fungus, which delays correct treatment. However, several clear indicators can help distinguish an infestation:

• Chewed or ragged grass tips across the lawn
• Patches of grass that turn brown almost overnight
• Birds feeding heavily on the lawn in early morning
• Caterpillars visible near the soil line or crawling across sidewalks
• Thin, weakened grass that pulls up easily

Because armyworms feed mostly in the early morning or late evening, their presence is easy to miss during routine lawn care. Sparta Lawn Care technicians check high-risk areas and monitor conditions throughout the season to catch infestations early.

Timing and Treatment for Best Results

The most effective time to treat armyworms is during the larval phase, when they are actively feeding. Treatments applied at this stage reduce the population before the caterpillars reach full maturity and cause widespread damage. In the Midlands, this typically aligns with the months of July through October. Armyworm control requires fast-acting insecticides with residual protection to stop active feeding and prevent new outbreaks. Correct timing, paired with proper mowing and irrigation practices, supports turf recovery and reduces future pest activity. Each lawn’s conditions are different, so treatment is tailored based on grass type, soil health, and pest severity.

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