April 12, 2022

Pest update from Wellesbourne

When the 3 yellow water traps were emptied today there were:

  • 4 male cabbage root flies (first of the year)
  • 46 bean seed flies
  • 36 pollen beetles
  • 8 flea beetles
  • 2 cabage stem weevil
  • 1 cabbage seed weevil

No carrot flies on the sticky traps.


April 06, 2022

Pest update from Wellesbourne

When the traps were emptied yesterday there were:

  • 2 male cabbage root flies (first of the year)
  • 24 bean seed flies
  • 3 pollen beetles
  • 4 flea beetles

March 29, 2022

Pest update from Wellesbourne

Counts from yellow water traps and carrot fly traps today:

Date Bean seed fly Carrot fly Pollen beetle Flea beetle Cabbage stem weevil Cabbage seed weevil
29 March 6 0 229 92 73 3


March 23, 2022

Willow–carrot aphid counts

We've been following the development of overwintering aphid populations on ‘open’ overwintered carrots over the last few years and the table below shows their counts since January. These are numbers per plant.


  Winged Wingless Parasitised
05-Jan 0.02 1.10 0.00
24-Jan 0.00 2.03 0.00
15-Feb 0.00 1.78 0.00
08-Mar 0.00 1.89 0.00
22-Mar 0.00 30.78 0.00

Updates from March

Total captures in 3 yellow water traps or 3 sticky traps (carrot fly):

Date Bean seed fly Carrot fly Pollen beetle Flea beetle Cabbage stem weevil
1 March 31
8 March 14
15 March 22 18 1 1
22 March 24 1 233 25 27


Updates until March

Bean seed fly counts to 15 March 2022

Date - 2022 Total in 3 traps near overwintered swedes at Wellesbourne
4 Jan 110
11 Jan 11
18 Jan 14
25 Jan 3
1 Feb 29
8 Feb 24
15 Feb 13
22 Feb 31
1 Mar 31
8 Mar 14
15 Mar 20


January 04, 2022

Pest update from Wellesbourne

Today's counts were:

12 carrot fly (3 sticky traps)

110 bean seed flies and one female cabbage root fly in 3 water traps.


December 28, 2021

Pest update from Wellesbourne

Last counts of the year

16 Nov - 17 carrot fly, 3 male and 2 female cabbage root fly, 8 bean seed fly

23 Nov - 36 carrot fly, 1 male and 3 female cabbage root fly, 7 bean seed fly

30 Nov - 14 carrot fly, 1 male cabbage root fly, 4 bean seed fly

7 Dec - 12 carrot fly, 15 bean seed fly

14 Dec - 17 carrot fly, 1 female cabbage root fly, 17 bean seed fly

21 Dec - 4 carrot fly, 21 bean seed fly

27 Dec - 7 carrot fly, 9 bean seed fly


November 12, 2021

Pest update from Wellesbourne

Last Friday's trap captures (5th) were (over 3 days):

  • 4 carrot fly - 3 traps

In the three yellow water traps:

  • 1 bean seed fly


Tuesday's (9th) trap captures were:

  • 32 carrot fly - 3 traps

In the three yellow water traps:

  • 1 male and 1 female cabbage root fly
  • 17 bean seed fly
  • 1 pollen beetle


Todays trap captures were:

  • 18 carrot fly - 3 traps

In the three yellow water traps:

  • 2 male cabbage root fly
  • 5 bean seed fly
  • 1 cabbage stem weevil

June 2022

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  • 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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