Submitted by BHGPhotoContest

The imported cabbage worm is the most severe pest of broccoli. The adult is a white butterfly; the larvae are green worms. Because of their color, it's difficult to see the worms on the broccoli. However, you can control them with Bt (Bacillus thuringiensis), a natural bacteria that kills them. Conventional insecticides such as Sevin or malathion also control them.

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