Pest Management Fact Sheet #5005 (Delia radicum) James F. Dill, Pest Management Specialist Clay A. Kirby, Insect Diagnostician For information about UMaine Extension programs and resources, visit extension.umaine.edu. Find more of our publications and books at extension.umaine.edu/publications/. Introduction The cabbage maggot (Delia radicum) is a very destructive insect that attacks crucifers (cool-weather plants) such