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Apion carduorum (Kirby)
Insecta, Coleoptera, Curculionidae .

Ceratapion carduorum

Artichoke pear-shaped weevil

Description, Biology, Life Cycle, Damage, Common Names, Images

- Adult: 2.8 to 3.4 mm, shiny blackish blue on its dorsal face and black on the ventral (*) .
- Larva: white, curved, apodous, yellow globular head bearing toothed mandibles (*) .

- Host plant: artichoke, Jerusalem artichoke (Helianthus tuberosus).
- Adult: remains at the surface of the leaves of the host plant which it nibbles (*) ;.
- Larva: digs longitudinal galleries in the petioles, the large veins of leaves and the capitulum axis (*) . It pupates in June in the feeding galleries.

[R]Life Cycle
- 1 annual generation.
- The young adult appears in June. It hibernates then lays during May of the year following its appearance.

The leaves develop pale spots, then yellow and decompose, especially those at the plant's base. The capitula develop badly (*) and do not reach their normal size.

[R]Common Names
DE: Artischockenspitzmäuschen ES: Apion de la alcachofa FR: Apion de l'artichaut IT: Apione del carciofo PT: Apion da alcachofra GB: Artichoke pear-shaped weevil

[R] Images

  1. Apion carduorum (Kirby) (Daumal J. / INRA)
    Adults on artichoke
  2. Apion carduorum (Kirby) (Coutin R. / OPIE)
    Adults on an artichoke stem
  3. Apion carduorum (Kirby) (Coutin R. / OPIE)
    Perforated capitulum bracts Traces of the feeding stings made by adults.
  4. Apion carduorum (Kirby) (Coutin R. / OPIE)
    Capitulum with arrested growth and larvae Longitudinal cross-section of stems and capitula to show larva at the centre of the stem (arrowed).
  5. Apion carduorum (Kirby) (Coutin R. / OPIE)
    Larvae in an artichoke stem Cross-section of stem to illustrate galleries.

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