Cabbage white butterfly

Larvae are up to 30 mm long and velvety green in colour with a faint yellow stripe running along the back and each side of the body. They attack canola and other brassica crops by chewing large irregular holes in the leaves. Adult butterflies have creamy white wings with one or two black spots, and a wingspan of approximately 40 mm. Their life cycle is largely dependant on environmental temperatures. Egg-laying ceases in winter and increases in spring, and they are most commonly found in crops during the warmer months.