Like armyworms, cutworms aren't really worms. They're the immature larval stage of several different types of moths. Stout and soft-bodied, these destructive caterpillars range in color from tan and pink to green, brown, dirt-gray and nearly black. Depending on the species, they may be spotted, striped, shiny, greasy or dull.
Cutworms typically grow up to 2 inches long. Like all caterpillars, they have six true legs plus fleshy false legs called "prolegs" that help support their length. In contrast, grubs have six legs, but no prolegs. When disturbed, cutworms curl into a tight "C" shape.
As their name suggests, cutworms damage plants by cutting through stems and leaves. They often feed right at the soil surface, but some types climb to cut off buds or eat holes in leaves instead. Other types feed on roots and plant parts under soil. Young plants and grasses are hardest hit.
Cutworms usually work at night. Signs revealed in the morning include severed stems or plants that wilt in midday sun. During daylight, many cutworms hide in loose soil at the base of the plants they eat. Grass damaging types may create hiding tunnels in lawn thatch and line them with grass-green excrement.
Effective cutworm control needs to reach these pests where they hide below the soil line and where they feed on plants above ground. Amdro® brand offers several options to hit cutworms on both fronts:
Plan your treatment for cloudy days or late afternoon and evening hours, when cutworms are active and more exposed. That translates to optimal contact and results.
* Except fleas, ticks, and mosquitoes
Always read product labels and follow the instructions carefully.
Amdro and Amdro Quick Kill are registered trademarks of Central Garden & Pet Company.
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