Cutworms are the caterpillars of certain types of moth species that, in this caterpillar stage, will live in the soil. One of the most common Cutworms is the caterpillar of the Turnip Moth (Agrotis segetum). These Cutworms tend to overwinter in the soil and become active when temperatures warm up in the spring. Their colour can be grey to brown, depending on their species, and they often curl up when disturbed.
Cutworms will attack a wide range of plants in a vegetable garden. They can feed on seedling roots, causing them to collapse, and will also feed on mature Cauliflowers, Cabbage, Root vegetables and Lettuce. The cutworms can sever the roots of such vegetables at ground level and will also feed on plant stems and lower leaves. Feeding often occurs at night with the Cutworms returning to the soil in the day.
You can attempt to cultivate your land in the spring which will expose the Cutworms to birds, or you can attempt to physically remove the Cutworms. If this is not practical, however, apply our Cutworm Killer Nematodes to the soil in the spring and summer. Our nematodes provide a safe and natural way to control and kill the Cutworm caterpillars and rid your land of infestation. Find our range of relevant products below.