Skunks also dig and feed on cutworms. Beneficial nematodes also eat cutworms and other insects which are found in soil. Products containing these nematodes can be purchased at garden centers. Some parasitic wasps deposit eggs in the body of the cutworm which pupate on its back, killing the cutworm. If physical and biological control measures are not effective, use a pesticide which will have a minimal impact on both you and the environment.
Diatomaceous earth is an insecticidal dust which acts as an abrasive.
It cuts the outer layer of the cutworm's body causing it to dehydrate and then die. The dust should be sprinkled around the base of the plant so that the cutworm must cross it to access the plant. If the above measures are not effective, consult with an expert at a garden center for additional pesticides available. Before using pesticides, consult the Backyard Bug Brigade Brochure which contains information on safe pest control. Always use a registered domestic class pest control product labelled for cutworm control and carefully follow the label directions.