It sounds you might be dealing with a different sort of pest. Perhaps a cabbage looper. The following page from the Maine Dept. of Agriculture offers some additional info about identifying cabbage pests and figuring out what to do about them: https://www.maine.gov/dacf/php/gotpests/bugs/cabbage-worms.htm
It sounds you might be dealing with a different sort of pest. Perhaps a cabbage looper. The following page from the Maine Dept. of Agriculture offers some additional info about identifying cabbage pests and figuring out what to do about them: https://www.maine.gov/dacf/php/gotpests/bugs/cabbage-worms.htm