All entries for Friday 14 June 2019

June 14, 2019

AHDB Aphid News

The latest edition of AHDB Aphid News has been released for the week ending 9th June.

  • Peach–potato aphids increased to 235% of those recorded in the previous week. A hotspot at Broom’s Barn approached numbers not recorded until mid-July in 2018
  • Potato aphids also more than doubled in numbers across much of Britain, increasing substantially against the 10-year mean at many sites in England.
  • Cabbage aphids increased at four sites with a hotspot at Writtle
  • Four currant–lettuce aphids were captured at Broom’s Barn
  • Willow–carrot aphid numbers declined to 44%, compared with last week, across all but three sites
  • Pea aphid numbers increased at seven sites, including a first arrival at Gogarbank.
  • Black bean aphid numbers increased at two sites.

Pest update from Wellesbourne

When the water traps in the 2019 swede plot were checked today there were:

  • 2 male and 3 female cabbage root flies
  • 70 bean seed flies
  • 1 flea beetle
  • 136 pollen beetles
  • 2 cabbage stem weevils
  • 0 cabbage stem flea beetles
  • 0 cabbage seed weevils

There were 4 carrot flies on the 3 sticky traps in the new plot for 2019.

No cabbage root fly eggs were laid between 10 and 14 June (around 15 plants).

15 diamond-back moths were captured. No moths were captured in our other pheromone traps (turnip moth, silver Y moth, cabbage moth, diamond-back moth). There are 2 traps for each species.

We also caught 28 diamond-back moths on the carrot fly traps. There was a large influx of moths into the UK on 12th June.


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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
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  • 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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