All entries for Friday 30 June 2017

June 30, 2017

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

Black bean aphids have been caught across the country in both ST (suction traps) and YWT (yellow water traps) this week.

The peach–potato aphid (Myzus persicae) numbers increased at seven ST sites with highest numbers at York (454), Kirton (142) and Newcastle (125). Tests show that up to 75% of these migrants are carrying Turnip yellows virus.
Field reports confirm peach–potato aphids are leaving rapidly maturing OSR to find alternative summer hosts.
The mealy cabbage aphid was caught at ten ST sites this week, increasing at five sites with the highest numbers at Preston (12) and Wellesbourne (12), and in YWT in low numbers.
Two currant-lettuce aphids (Nasonovia ribisnigri) were caught at Wellesbourne and one at York ST this week.
Numbers of the willow–carrot aphid are highest at Newcastle and the parsnip aphids are highest at Kirton.

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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