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Armyworms Appearance and Size Facts

Armyworms are caterpillar larvae known for their distinctive appearance and destructive feeding habits. These hairless larvae exhibit a base color ranging from yellow-green to dark brown or gray. While they are similar in size to other caterpillars, their bodies feature prominent stripes running along the length, with one stripe on each side and an additional stripe down the middle of the back. As mature larvae, they reach sizes ranging from 1/16 inch in the early instar stage to 1 1/3 inches.


Distinguishing Armyworms From Other Caterpillars

Not all caterpillars are harmful, so it is vital to keep an eye out for the key characteristics of armyworms to identify your pest problem correctly. Notably, they have four dark circular spots on the upper side of each abdominal segment and a yellow-white marking on the head. While their appearance is unique, their small size means you may not even know you have armyworms or other caterpillars in your yard. Luckily, Hulett’s pest professionals know what to look for, where to find them, and how they behave.

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Behavior and Habitat of Armyworms

Armyworms are active throughout the year, passing the winter as partially grown larvae in the soil or under debris in grassy areas. They exhibit continuous growth and activity, with a pupation period of 15 to 20 days. Adults typically emerge in May and June.

These pests are not picky eaters but show a distinct preference for grasses, especially in residential lawns. Females lay eggs at night in clusters on grass or small grain leaves, with a single female capable of producing up to 2,000 eggs during adulthood. This rapid reproduction rate means a small armyworm problem can become a big one in a short time, so it is best to nip the infestation in the bud before it starts.

Signs of Infestation of Armyworms

The damage caused by armyworms is akin to that of sod webworms. Larvae initially consume one side of the leaf blade, progressing to the entire blade as feeding continues. Additionally, they may burrow into the growing point of plants, destroying potential new growth. While armyworms may be easy to spot, removing them can be challenging with DIY methods alone.

Tips for Prevention of Armyworms

Mowing your lawn to the proper height and regular watering can help move armyworms out of your yard. If these measures prove insufficient, just call Hulett. Our pest professionals will use our proven armyworm elimination sprays and minimally invasive treatments to remove these ravenous pests without risking your pets and family.


Getting Rid of Armyworms

Hulett’s professional pest control services are the most effective solution for addressing armyworm problems. Whether their presence is small or large, we are ready to take care of them so your yard can remain healthy and pest-free.


Effective Armyworm Control Solutions

For comprehensive and effective armyworm control, trust the expertise of Hulett Environmental Services. We will inspect, plan, and implement your personalized pest control service quickly and efficiently so you can experience same-day pest relief. Afterward, we provide ongoing pest management to ensure your landscape thrives well into the future. Schedule your free inspection online or contact us today for reliable pest control solutions.

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