Another option is to sprinkle crushed egg shells around the plant base. Crawling over the shells, will cause the cutworm to dehydrate and die. Biological Birds such as bluejays, sparrows, blackbirds and wrens feed on cutworms. By attracting these winged friends, natural control of the pest is possible. Place bird feeders close to infested areas.
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.