Phaedon cochleariae

are preyed upon by

• Global Biotic Interactions: Adalia bipunctata (Linnaeus 1758) (twospotted lady beetle)
• Global Biotic Interactions: Coccinella septempunctata Linnaeus 1758 (7-spot ladybird)
• Global Biotic Interactions: Rhacognathus punctatus (Linnaeus 1758)
• Global Biotic Interactions: Saprinus (Saprinus) virescens (Paykull 1798)

eat

• Global Biotic Interactions: Rorippa sylvestris (L.) Besser (creeping yellowcress)
• Global Biotic Interactions: Capsella bursa-pastoris (L.) Medik. (shepherd's purse)
• Global Biotic Interactions: Rorippa amphibia (L.) Besser (Great Yellow-cress)
• Global Biotic Interactions: Armoracia rusticana P. Gaertn., B. Mey. & Scherb. (Horseradish)
• Global Biotic Interactions: Limonium vulgare Miller (Mediterranean sea lavender)

have parasitoid

• Global Biotic Interactions: Bracon guttiger (Wesmael 1838)

visit flowers of

• Global Biotic Interactions: Torilis japonica (Houtt.) DC. (Japanese hedge-parsley)
• Global Biotic Interactions: Ulex europaeus L. (gorse)