On The Green Lawn Care


Pest Problems: Dealing with Hyperactive and Destructive Fall Armyworms

fall armyworms on the green inc
Fall armyworms are growing more active. And although they may seem harmless, they can leave some major damage on your property as they go along.

Pest problems persist throughout the year. But as summer turns to autumn, there is another wave of nuisances that demand your attention. Fall armyworms are growing more active. And although they may seem harmless, they can leave some major damage on your property as they go along. So what can you do about them? 

Areas of Activity 

Fall armyworms are not just a problem for Maryland residents. Homeowners in many states (Virginia, North Carolina, Ohio, Illinois, Kansas, Texas, and Tennessee) have indicated that they are being affected by these bugs. In Garret County, Maryland, the armyworms are feeding on turfgrass and ruining hayfields as well. 

Potential for Further Problems 

The lifecycle of these pests complicates matters. Before they pupate, the armyworms undergo six larvae instars first. By the end of September arrives, cooler temperatures will hinder the development and advance of the armyworms. New leaf sheaths and tillers can develop faster than the armyworm colony can eat them. So, our advice for every homeowner in Maryland is to take a closer look at the turfgrass under your feet. When you see them, you will know the larvae: the tiny creatures present as greenish bodies with black head capsules. Luckily, pesticides such as Spinosad, Provaunt, Mainspring, or Acelepyrn are all effective countermeasures.  

The Presence of Caterpillars 

Armyworm caterpillars are the primary form of this pest. They swarm across the ground, moving the way armies do, which is why they are called armyworms in the first place. How do they propagate? Their main food source, at this stage, is the blades and stalks of the grass they attack. However, since the roots and crowns remain intact, the arrival of fall rains will help the grasses regenerate. Whenever you see a brown lawn, your first reaction is to fix the lawn by adding seed. Reseeding throughout September and October is not only a good idea to fix armyworm damage, it’s an essential part of maintaining a beautiful lawn.    

Why Are the Armyworms Everywhere?

Another pressing question is this: “why are the armyworms everywhere?” Because of how well they fly, they can travel very long distances especially in wind or with hurricane paths.  This pest is new to our area and hasn’t been a problem in previous years.   Its damage is expected to happen again next year and lawn care regimens will need some adjustments to be better prepared.  

On The Green Lawn Care is Here for You! 

On The Green, Inc. was established back in 1994. We started as a small business that served the local area. In the decades since, we’ve expanded tremendously. Incorporated in 1997,  our brand has become renowned throughout the state of Maryland. Do you adore social media? Email us at [email protected], call us at 410-695-0444, and find us at our street address: 777 Annapolis Road, Gambrills, Maryland 21054. Grow with us on Facebook and Google!


James Cunningham

James Cunningham

“This our sixth season with On The Green. They installed our irrigation system and have maintained our lawns. This a very well run family company with personal service. I would highly recommend this company. I give them five stars in my book. I am a well satisfied customer.”

Lynda Todd-Sanchez

Lynda Todd-Sanchez

"I moved into the house I grew up in. There was nothing but weeds and tons of bare spots. This will be my second season with On the Green. I have to admit my grass almost looks like a carpet. I highly recommend this company they're affordable dependable and very easy to work with."

Edna Smith Miller

Edna Smith Miller

"On The Green is the BEST! I have used other companies, but there is no comparison. I was just admiring my lawn this morning - saying that it is beautiful and looks like a green carpet. In addition to my lawn care, they also service my in-ground sprinkler system. Customer service is top-notch."

Gary Griffiths

Gary Griffiths

"We recently hired On the Green to take care of our yard. Our grass is starting to look better. Today they showed up to clean up the leaves and other things that blow into our yard from the park across the road. These two guys did a fantastic job. We have a low sitting deck and they managed to get the leaves out from under it. On the Green has a 5 star rating with us."

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