Ceutorhynchus obstrictus (Marsham, 1802)
cabbage seed pod borer
on Brassicaceae
parasite
The female deposits her eggs in developing siliquae; the larvae feed on the seeds. Pupation in the soil; univoltine.
host plants
Brassicaceae, broadly oligophagous: actually on all species with not too small siliquae
Brassica juncea, napus, nigra, rapa; Cardaria draba; Raphanus sativus; Sinapis alba.
phenology
Larvae from May on.
distribution within Europe
All of Europe (PESI, 2018).
parasitoids, predators
Anaphes arenbergi, brachygaster, cultripennis, fuscipennis, regulus, tarsalis; Aprostocetus semidesertus; Chlorocytus diversus; Euderus albitarsis; Eupelmus vesicularis; Eurytoma curculionum; Mesopolobus gemellus, incultus, morys; Pteromalus semotus; Stenomalina gracilis; Tetrastichus rebezae; Trichomalus bracteatus, perfectus.
synonyms
Because of an unhappy conflict in the nomenclature, this species was long known as C. assimilis. Now that name is applied to another species that is equally common and noxious, but has a completely different biology.
notes
Important pest in the canola oil production
references
Colonnelli (1990a), Delbol (2008a, 2013a), Fusu (2017a), Hoebeke & Griffin (2015a), Kovács, Kaasik, Kaart, ao (2017a), Muller, Dosdall, Mason & Kuhlmann (2011a), Todorov, Ljubomirov & Peneva 2022a), Rheinheimer & Hassler (2010a), Yunakov, Nazarenko, Filimonov & Volovnik (2018a).