The last larval stage leaves the host plant to form the pupa in the soil, from which an adult will emerge a few days later.
The monitoring of the overwintering generation of adults using carrot-baited traps is an effective means of assessing the level of infestation and predicting the need for insecticide treatments.
[7] Several natural enemies such as micro-organisms, nematodes, predatory insects and parasitoids can attack the carrot weevil.
The eggs of the weevil are mainly attacked by parasitoids that are naturally present in the environment, especially by the species Anaphes victus and A.
[8][9] Smaller species of ground beetles, such as Bembidion quadrimaculatum and Clivina fossor, can also attack weevil eggs.