All entries for Friday 05 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.

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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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