Brassicae

The fungi Alternaria brassicae and A. brassicicola cause dark leaf spots in affected plants.

The large white butterfly ( Pieris brassicae ) is prevalent in eastern European countries.

The larvae of the Noctuidae genus Spodoptera (armyworms), Helicoverpa (corn earworm), or Pieris brassicae can cause extensive damage to certain crops.

These are mainly of noctuid moths noted for feeding on many poisonous plants without harm such as Cabbage Moth (Mamestra brassicae), Dot Moth (Melanchra persicariae) and Mouse Moth (Amphipyra tragopoginis).