Diagnosing cabbage white butterfly
Larvae of cabbage white butterfly are often found in canola crops. The larvae consume leaves but numbers are very rarely high enough to cause serious damage to the crop.
What to look for
- Large irregular holes chewed in leaves.
- Seldom feed on floral parts of the plant when foliage is available.
- Velvety green caterpillar up to 30mm long with a pale yellow stripe down the back.
- Large moths with 30-40mm wingspan and predominantly white with black wingspots and markings.
What else could it be
- Cabbage white butterfly is not an economic problem of canola but can be controlled with foliar insecticides.
Where to go for expert help
Page last updated: Monday, 1 May 2017 - 12:14pm