Curculio nucum
Taxonomic position
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Curculio nucum Linnaeus - hazelnut weevil
attacks hazelnuts in southern and central Europe as well as in neighbouring regions. Up to 80% yield losses have been reported. The female lays eggs into the developing hazelnut fruits in April, typically one per fruit. The mature larvae emerge from the nuts in August and drop to the ground for overwintering. The larvae may stay in the ground for more than one year and pupate in the spring. The adult is 6-8 mm long, covered with greyish red to greyish brown scales. The rostrum is curved and as long as the body in females. The scutellum is heart-shaped and whitish.
Synonyms:
Balaninus nucum
| Vernacular names | |
|---|---|
| • Deutsch: | Nussrüssler Haselnussbohrer |
| • English: | nut weevil hazelnut weevil |
| • Español: | balanino del avellano gorgojo del avellano |
| • Français: | charançon des noisettes balanin des noisettes |
For details see the respective page in Wikipedia.
- Other images of Curculio nucum (Wikimedia Commons and IPM Images - click to enlarge)
differences in antennae features of Curculio glandium (left) and C. nucum (right)
larva
