Description, Biology, Life Cycle, Damage, Common Names, Images
- Host plant: raspberry, strawberry, bramble (Rubus), rose (Rosa) and wild rose (Rosa canina).
- Adult: directly after its emergence, it feeds a few days on the young leaves and the corollas (*) then enters diapause, sheltered under bark or in various other situations. It emerges in spring, feeds for a few days and mates. Oviposition occurs immediately after mating: with its rostrum, the female bores through the unopen flower bud; then turns round and introduces an egg in the centre of the floral tissue, on the young anthers or the stamens. It then incises the flower stalk, thus preventing sap circulation (*) .
- Egg: embryonic development lasts 5 to 6 days.
- Larva: growth lasts 18 to 22 days. Pupation occurs in the bud and adults emerge 8 days later, having perforated the bud.
- 1 annual generation.
- The young adults appear in the late spring and then; after a few days of activity, enter into a summer-winter diapause and reappear in the following spring.
Strawberry is the main host, and suffers from the very characteristic attacks of this insect: flower bud containing an egg does not develop but dries up, hangs on the peduncle and finally drops off.
HYPPZ on line : Species (scientific name), Pests (common names), Glossary, Crops.