Insecta, Homoptera, Aphididae .
Description, Biology, Life Cycle, Damage, Common Names, Images
Unknown before 1940, this cosmopolitan and now very common species is polyphagous and occurs on various Liliaceae (onion, leek, shallot), Compositae, Cruciferae, Gramineae, Rosaceae (strawberry), potato, beet and numerous ornamentals.
- Winged migrants appear in the spring and infest various herbaceous plants, causing severe distortion of the foliage and flower trusses. A return migration to strawberry occurs in October, winged forms giving birth to apterous virginoparae; aphids continue to reproduce parthenogenetically during the winter.
- An anholocyclic species reproducing parthenogenetically throughout the year. During mild winters, colonies can survive outdoors. Otherwise, aphids remain on glasshouse plants, or on crops in store (bulbs).
- Aphid colonies occur on shallot and various bulbs at the end of the storage period, thus causing the malformation of new seedlings (*) . In addition, Myzus ascalonicus is a vector of beet mild yellowing virus (BMYV) and the beet yellows virus (BYV).
HYPPZ on line : Species (scientific name), Pests (common names), Glossary, Crops.