bladder pod midge dasineura brassicae formerly dasyneura larvae in oilseed rape pod.

aborted agriculture arthropod background bladder brassica brassicaceae brassicae canola cecidomyiidae close closeup crop crops damage dipteral england flower fresh freshness green horseradish insect invertebrate larva larvae macro midge mustard napus natural nature oilseed parasite pest pests plant pod rape seed seedpod seeds summer