All entries for Friday 24 April 2015

April 24, 2015

Aphid bulletins

The Rothamsted Insect Survey aphid data Bulletin no.2: 13/4 - 19/4/2015 with the corresponding AHDB Aphid news sheet no.2 have just been released.

A willow–carrot aphid (Cavariella aegopodii) was found in the Wellesbourne trap on 19th April, 13 days earlier than the 10-year average. The shallot aphid (Myzus ascalonicus) remains the most numerous aphid species in the suction-trap samples to date.


Cabbage root fly egg counts in Cornwall


HDC Project FV 416b - Brassicas: Treatments to control cabbage root fly - as part of this one-year HDC project, we are monitoring egg-laying by female cabbage root flies at 5 sites in Cornwall on a range of brassica crops. We’re sampling 20 plants per location and the numbers below are totals for the 20 plants. The sampling is being coordinated by Ellis Luckhurst.


Location

Crop

No. eggs (20 plants) on 20 April

Helston

Savoy cabbage

3

Hayle

Calabrese

24

Gwithian

Calabrese

6

Truro/ Shortlanesend

Calabrese

6

St Columb

Summer cauliflower

18


Pest update from Wellesbourne

Today's 'captures' consist of:

  • 6 male and 3 female cabbage root flies (3 water traps)
  • 457 bean seed flies (3 traps)
  • 20 flea beetles (3 traps)
  • 2 carrot flies (3 traps)
  • 3 cabbage root fly eggs (15 cauliflower plants)

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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 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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