While out exploring in the garden with preschoolers from Learn A Lot in Raytown, Mo., we noticed green caterpillars on our broccoli plants! These small green caterpillars are called cabbage loopers. They enjoy eating greens in the brassica family (kale, cabbage, collards, broccoli, etc.). Cabbage loopers are especially pesky during the fall gardening season. After a full spring and warm summer, they are hungry for young transplants.
Cabbage loopers are hard to prevent, but if they are caught early enough you may still have a great fall crop! To prevent cabbage loopers from taking over the garden, it is wise to get into the habit of inspecting your greens. Look for caterpillars under or on top of the leaves of your brassicas. The loopers are the same color as your brassicas, and they are easy to miss, so look carefully!
If you’re having trouble keeping up with caterpillars, KCCG offers Dipel Dust, a natural bacteria powder that if sprinkled on top of the leaves eliminates these pesky caterpillars. Dipel Dust is an organic pesticide and safe to use in your schoolyard garden. Apply it after you water your garden, about once a week.
Children are usually very intrigued by the cabbage loopers. Find the students who are willing and task them with checking the garden each day at recess or during gardening time. The looper damage may subside quickly!