July 21, 2017

AHDB Aphid News

The latest edition of AHDB Aphid News has just been released.

  • Black bean aphids have been caught across the country in both ST and YWT this week, the highest number was caught in the ST at York (23).
  • The peach–potato aphid (Myzus persicae) numbers decreased at most ST sites this week with the highest numbers found at Wellesbourne (26). Tests show that up to 62% of these migrants are carrying Turnip yellows virus.
  • The mealy cabbage aphid was caught at seven ST sites this week, decreasing at twelve sites with the highest numbers caught at Wellesbourne (9) and Hereford (9). Lower numbers were also found in YWT compared to the previous two weeks.
  • Currant-lettuce aphids (Nasonovia ribisnigri) were caught in ST at Wellesbourne (1), Hereford (1) and Starcross (1) this week.
  • A single willow–carrot aphid was caught at Kirton and the parsnip aphids were also highest at Kirton.

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  • Update – Wellesbourne, 09–15/10/2017, Suction, 12 caught, 0% carrying TuYV Kirton, 09–15/10/2017, Su… by Angela Hambidge on this entry
  • Update Spalding 28/9 02/10/2017 YWT 12 caught, 25% carrying TuYV. by Angela Hambidge on this entry
  • Update – Wellesbourne 02 – 08/10/2017 Suction, 11 caught, 14% carrying TuYV 09 – 12/10/2017 YWT, 1 c… by Angela Hambidge on this entry
  • Update – Wellesbourne 11/9 – 17/9/2017 Suction trap 1 aphid 0% carrying TuYV Wellesbourne 21/9 – 25/… by Angela Hambidge on this entry
  • Update – Kirton, Lincolnshire 28/8–03/09/2017 Suction trap 4 aphids 33% carrying TuYV Spalding, Linc… by Angela Hambidge on this entry

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