Cutworm (2026)

Seedlings of many crops

Quick answer: Cutworm attacks seedlings of many crops. Start with the organic/IPM steps below; use the chemical option only if damage escalates, and always follow the product label. Till in fall; avoid fresh manure; start transplants sturdy.

Your Cutworm IPM card

Select your state to see whether this pest is common there, then print.

Cutworm in Colorado: Listed among the most-reported pests in your state — watch for it.

Cutworm

Targets
Seedlings of many crops
Signs
Young transplants cut at soil line overnight.
Organic / IPM first
Cardboard collar around stem; diatomaceous earth ring; hand-pick at dusk.
Chemical option (follow label)
Bt or spinosad soil drench at planting.
Prevention
Till in fall; avoid fresh manure; start transplants sturdy.

More pests

Treatments follow integrated pest management (IPM): identify first, least-toxic fix second. Product specifics and labels vary by state — confirm with your county extension.