Armyworm Damage in Georgia: Treatment and Lawn Recovery
Fall armyworms are a fact of life for Georgia lawn owners. Each summer, these migrating pests make their way into the state and can devastate warm-season lawns with alarming speed. Executive Turf Care works with Georgia homeowners to manage armyworm infestations and, just as importantly, to restore lawns after the damage has been done. Here’s what you need to know about getting rid of armyworms and bringing your lawn back.
Understanding the Armyworm Threat in Georgia
Fall armyworms don’t overwinter in Georgia — they migrate northward from Florida on weather systems each summer, arriving in waves. This means infestations can appear suddenly and without warning, even in lawns that had no pest issues earlier in the season. Georgia’s Bermuda and Zoysia lawns are the primary targets, though fescue and centipede grass are also attacked. Pressure is highest between late July and October, with August and September typically the most damaging months.
Confirming an Armyworm Infestation
Not all rapid lawn browning in late summer is armyworm damage — drought stress, fungal disease, and other pests can produce similar symptoms. Confirm armyworm activity before treating:
- Look for the larvae themselves — green to tan caterpillars with side stripes, typically feeding in the early morning or evening
- Check for a ragged, chewed appearance on grass blades rather than the smooth die-out of drought stress
- Flush the area with soapy water — two tablespoons of dish soap per gallon — to bring larvae to the surface
- Check the thatch layer by pulling back a small section of affected turf — larvae often hide here during the day
Treating an Active Infestation
Speed matters more with armyworms than with almost any other lawn pest. An effective treatment program includes:
- Insecticide application in the late afternoon or evening when larvae are surface-feeding — bifenthrin, lambda-cyhalothrin, and chlorantraniliprole are all effective
- Mow before treating to reduce the canopy and improve product contact with the larvae
- Apply to the entire affected area plus a buffer zone beyond the visible damage edge — armyworms spread outward continuously
- Monitor for reinfestation over the following two weeks, as new moth flights can bring additional egg-laying after treatment
Lawn Recovery After Armyworm Damage
Once armyworms are controlled, attention turns to recovery. Georgia’s warm-season grasses are more resilient than most homeowners expect:
- Bermuda grass — can recover from near-complete defoliation if the crowns and roots are intact; apply a light balanced fertilizer after treatment and maintain consistent irrigation; visible recovery typically occurs within 2 to 4 weeks
- Zoysia grass — slower to recover than Bermuda due to its growth habit; fertilize and water consistently but avoid pushing excessive top growth before temperatures cool
- Fescue — cool-season grass damaged in late summer should be overseeded during the fall window (mid-September through October) rather than attempting summer recovery
What If Damage Happened Late in the Season?
Armyworm damage that occurs in September or October may not be visible until the lawn enters winter dormancy. Bermuda and Zoysia that appeared to be going dormant normally may show significant bare areas in spring green-up. Late-season damage assessments and spring renovation plans — including targeted overseeding or sod replacement in severely affected zones — are the appropriate response.
Executive Turf Care: Georgia’s Lawn Recovery Experts
From rapid armyworm treatment to full post-damage restoration, Executive Turf Care provides the expertise Georgia homeowners need when pest pressure hits hard. Contact us at the first sign of armyworm activity — the sooner we get there, the less lawn you’ll lose.
