Cutworms are dull grey brown fat caterpillars with a shiney head often curled at the base of young plants. They feed at night on the stems of young seedlings and transplants where they sever the seedling at ground level, sometimes consuming the entire seedling. Damaged plants wilt and die.
Product solution: Spray with Provado Ultimate Fruit and Vegetable Bug Killer Ready to Use or Concentrate or Sprayday Greenfly Killer.
Cultural measure: Dig up the soil or compost in the morning, often going down afew inches and remove the cutworms.