The imported cabbageworm (ICW), Artogeia rapae[=Pieris rapae (L.)] is commonly known as the cabbage butterfly. This butterfly was imported from Europe to Canada in the mid-1800s and has since spread to all parts of the continent. ICW rarely becomes an economic pest if controls for the other cole crop Lepidoptera (diamondback moth and cabbage looper) are being applied, and/or beneficial predators and parasites are present.
6/30/2009