Army cutworm disaster

Asked April 6, 2013, 11:05 PM EDT

We have a severe invasion of what we think is the army cutworm. There are so many that it is surreal. Our friend 15 minutes north of us has them crawling on his house. Our pastures are under drought stress and just trying to green up, but we have short grass prairie and we are afraid these worms may destroy our pastures. They are literally everywhere. We have never seen anything like it!

Yuma County Colorado

1 Response


It seems like you might have army cutworm. Army cutworm has been known to affect alfalfa and cereal grains, but its damage to rangelands haven't been well documented. We need to make sure we correctly identify the species of insect and map its distribution and severity. Would you be willing to share your address and agree to a field visit to assess the situation?

Also, would it be possible for you to submit a photo of the insects so that we might be able to identify it, while we try and schedule a visit?

Once we know what the insect is and the scale of the insect population, then we will be better able to make some control recommendations.

Feel free to contact me directly.