Potential Signs of an Armyworm Infestation:Īn increase in the number of birds in a yard, such as Starlings, can be a potential sign of an armyworm infestation.

The eggs hatch in 3-5 days to create another armyworm generation for another 14-28 days that will cause more turf damage.Īrmyworms feed on the grass any time during the day and are known for their voracious eating habits. They turn into moths for 11-14 days, laying thousands more eggs.

They mutate into pupae for 7-14 days, and their cocoon-like structure gives them wings for flight. Read on below for information regarding the armyworm’s life cycle, eating habits, and tips for spotting a potential armyworm infestation.Īrmyworm larvae devour turf for 14-28 days. While armyworms seem to love fescue turf, we have also seen them in Bermuda turf. A moth can fly onto your property and lay thousands of eggs, which will hatch and grow into a 1 to 1 1/2 inch worms – gray, green, or brown in color. These destructive lawn invaders are found in large numbers (up to millions in a single colony) “marching” across the turf and eating grass blades as they go. In fact, these pests can completely destroy a lawn in a matter of 24 hours if not treated upon discovery. Fall armyworms can cause significant, costly damage to local lawns.

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