All entries for Saturday 12 August 2017

August 12, 2017

AHDB Aphid News

The latest edition of AHDB Aphid News is available.

Monitoring crops is still advised, however the total numbers of aphids have generally decreased this week in the ST (suction trap) network.

  • Black bean aphids were caught in single figures at five sites this week in the ST as well as in low numbers across Scotland and Northern England in YWT (yellow water traps).
  • Single peach–potato aphids (Myzus persicae) were caught at Kirton and Wellesbourne this week, as well as two being caught at Dundee. Peach–potato aphids were also found in low numbers in the YWT across Scotland.
  • No mealy cabbage aphids (Brevicoryne brassicae) were caught at this week.
  • No currant-lettuce aphids (Nasonovia ribisnigri) was caught in the ST this week.
  • Two willow ̶ carrot aphids (Cavariella aegopodii) were caught at Dundee this week.
  • The parsnip aphids (Cavariella pastinacae) were caught at Broom’s Barn (2), Newcastle (1), Preston (2), and Rothamsted (3) this week.
  • The parsnip aphid (Cavariella theobaldi) was caught at Broom’s Barn (2) and Kirton (1) this week.

Pest update from Wellesbourne

Between Tuesday and today we caught:

On 3 sticky traps:

  • 20 carrot flies

In 3 water traps in a plot of swedes.

  • 112 male cabbage root flies and 36 females
  • 40 bean seed flies
  • 15 pollen beetles
  • 45 flea beetles
  • 2 cabbage stem weevils
  • 2 cabbage stem flea beetles

We also recovered 0 cabbage root fly eggs from the soil around 15 cauliflower plants (new plants).

We caught 1 turnip moth and 2 silver Y moths in our pheromone traps


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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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