Differences Between Chinch Bug & Armyworm Damage
Chinch Bugs, Pest Control

Differences Between Chinch Bug & Armyworm Damage

Wednesday, September 03, 2025

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If you suspect your lawn in Florida is infested with pests like chinch bugs or armyworms, it's crucial to take action promptly. Chinch bugs are small insects that feed on grass blades, causing patches of yellow or brown grass. Armyworms, on the other hand, are caterpillars that devour grass blades, leaving behind bare patches. If you notice signs of either pest, it's best to contact professionals. They can accurately identify the pest and develop a treatment plan to eliminate them, preventing further damage to your lawn. Prompt action can help restore the health and beauty of your turf.


What are chinch bugs, and what damage do they cause?

Black and yellow chinch bug on a blade of grass in The Villages, FL.

Chinch bugs are small insects that can cause significant damage to lawns. These pests have a hard, oval-shaped body and are typically black or dark brown with white wings that have distinctive black triangles on them. Chinch bugs feed on the sap of grass blades, causing them to turn yellow or brown and eventually die. As they feed, chinch bugs inject toxins into the grass, which can further damage the turf and make it more susceptible to other stresses like drought or heat.

One of the most noticeable signs of chinch bug damage is the appearance of irregular patches of yellow or brown grass in your lawn. These patches may start small but can quickly spread, especially during hot and dry weather conditions. In severe cases, chinch bug infestations can cause large areas of your lawn to die, leaving behind unsightly patches of dead grass.


What are armyworms, and what damage do they cause?

Armyworm crawling on a blade of grass in The Villages, FL.

Armyworms are another common lawn pest that can cause significant damage to your turf. These pests are the larvae of certain moth species and are typically green or brown with distinctive stripes down their bodies. Armyworms feed on grass blades, leaving behind bare patches of turf and causing the grass to appear ragged or chewed.

A clear indicator of armyworm activity is the sudden appearance of uneven, thinning areas in your lawn where the grass turns brown or looks as though it’s been chewed down. These spots often begin as small sections but can expand rapidly, particularly when the weather is warm and humid—the conditions in which armyworms thrive. Because they feed aggressively and in large numbers, an infestation can quickly escalate, leaving behind widespread damage and large swaths of dead or dying turf that diminish the health and appearance of your lawn.

Armyworms are most active during the late summer and early fall months.

What should you do if you suspect chinch bugs or armyworms are infesting your lawn?

If you suspect that your lawn is infested with chinch bugs or armyworms, it's important to take action as soon as possible. These pests can cause significant damage to your turf, and the longer you wait to address the problem, the more difficult it will be to control.

The best course of action is to contact a lawn care company. These professionals have the knowledge and expertise to accurately identify the pest and develop a treatment plan to eradicate them. They may use insecticides or other methods to control the infestation and prevent further damage to your lawn.

In addition to treating the infestation, professionals can also provide advice on how to prevent future infestations. This may include recommendations for improving your lawn's overall health and resilience or implementing preventative measures like regular fertilization.


Call us today to schedule our lawn insect control service!

If you're dealing with a chinch bug or armyworm infestation, we're here to help. At FertiGator Lawn Care, we offer curative lawn insect control treatments to eliminate these pests from your turf. We also offer preventative treatments to prevent them from causing problems in the first place. We offer our lawn insect control service to property owners in The Villages, FL, and surrounding areas like Lady Lake and Wildwood. Give us a call today at (352) 314-2867 to schedule our lawn insect control service and protect your lawn from damage!


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