All entries for July 2019

July 05, 2019

Pest update from Wellesbourne

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

  • 30 male and 8 female cabbage root flies
  • 10 bean seed flies
  • 0 flea beetles
  • Approx 2,550 pollen beetles
  • 13 cabbage stem weevils
  • 8 cabbage stem flea beetles
  • 1 cabbage seed weevil

There were 8 carrot flies on the 3 sticky traps in the new plot for 2019.

285 cabbage root fly eggs were laid between 2 and 5 July (around 15 plants).

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

We also caught 7 diamond-back moths on 5 carrot fly traps.



AHDB Aphid News

The latest edition of AHDB Aphid Newshas been released for the week ending 30th June.

  • Peach–potato aphid numbers decreased to around 50% of those caught last week but reached three figures at York.
  • Potato aphid numbers have also decreased to nearly 50% of those caught last week.
  • Cabbage aphid numbers decreased to around 40% of those caught last week.
  • Four currant–lettuce aphids were captured at Kirton, as well as one from Dundee.
  • Willow–carrot aphid numbers decreased to around 55% of those caught last week across much of England.
  • Pea aphid numbers are down only very slightly compared with last week.
  • Black bean aphid numbers have increased 135% compared with last week, primarily due to hotspots at Starcross and Wellesbourne, with numbers down at six sites.

July 02, 2019

Pest update from Wellesbourne

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

  • 14 male and 8 female cabbage root flies
  • 8 bean seed flies
  • 0 flea beetles
  • Approx 5,200 pollen beetles
  • 0 cabbage stem weevils
  • 3 cabbage stem flea beetles
  • 0 cabbage seed weevils

There were 6 carrot flies on the 3 sticky traps in the new plot for 2019.

328 cabbage root fly eggs were laid between 28 June and 2 July (around 15 plants).

11 diamond-back moths and 1 turnip moth were captured. No moths were captured in our other pheromone traps (silver Y moth, cabbage moth). There are 2 traps for each species.

We also caught 10 diamond-back moths on 2 carrot fly traps in the swede plot and are baited with a pheromone lure (experimental).


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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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