Ive got Cabbage loopers, which are small caterpillars with big appetites. They can be one of the most destructive pests in the vegetable garden. The bugs love plants in the cabbage family, including cabbage and kale. This insect will also attack potato, tomato, spinach, and cucumbers. They leave behind nice gifts for me to hose of the leaves too. I used my regular Espoma insecticidal soap to spray on the underside of leaves. And every cabbage looper I found I hand picked and disposed of the compost bin. Not a fun process. Did cabbage loopers eat holes through your garden?