Original: Its caterpillars can be a pest on cultivated cabbages, kale, radish, broccoli, and horseradish but it will readily lay eggs on wild members of the cabbage family such as Charlock Sinapis arvensis and Hedge mustard Sisybrium officinale.
Simplified: Its caterpillars can be a pest on cultivated cabbages, but it will lay eggs as well on wild members of the cabbage family such as Charlock Sinapis arvensis and Hedge Mustard Sisybrium officinale.