All entries for Tuesday 22 September 2015

HDC Project FV 416b – cabbage root fly egg counts from Cornwall

The egg counts are in the attached file. They show the mean numbers of eggs per plant per week found around a sample of 20 plants per location.

cornish_egg_counts_22_sep_2015.pdf

Rosemary Collier : 22 Sep 2015 18:08 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

Yesterday we found:

• 6 male and 12 female cabbage root flies (3 water traps)
• 27 bean seed flies (3 traps)
• 4 carrot flies (3 traps)
• 42 cabbage root fly eggs (15 cauliflower plants)
• 39 brassica flea beetles (3 traps)
• 10 small white butterflies (3 traps)
• 1 pollen beetle (3 traps)

Rosemary Collier : 22 Sep 2015 18:02 |  Comments (0) |  Close comments |  Report a problem

Aphid and Turnip yellows virus News

Brassica virus and peach potato aphid update from Wellesbourne, Warwickshire:

• 10-14/09/2015. 1 Individual of M. persicae was caught (12 yellow water traps). This individual was not carrying TuYV.
• 14-17/09/2015. No M. persicae were caught (12 yellow water traps).
• 7-13/09/2015. From the Rothamsted Insect Survey suction trap catch, no M. persicae were caught.

Brassica virus and peach potato aphid update from Kirton, Lincolnshire:

• 10-14/09/201. 4 Individuals of M. persicae were caught (12 yellow water traps), these individuals were all carrying TuYV.
• 14-17/09/2015. 1 Individual of M. persicae was caught (12 yellow water traps), this individual was carrying TuYV.
• 7-13/09/2015. From the Rothamsted Insect Survey suction trap catch, 2 individuals of M. persicae were caught (12 yellow water traps), both these individuals were carrying TuYV.

Turnip Yellows Virus (TuYV), formerly known as Beet western yellows virus, is a very important pathogen of vegetable brassicas and oilseed rape. It is spread by the peach potato aphid (Myzus persicae). This data is collected with funding from the BBSRC Horticulture And Potato Initiative (HAPI).

Press release on the new round of HAPI projects involving the University of Warwick

Diana Katschnig and Angela Hambidge, Plant-Virus Interactions Group, University of Warwick

Diana Katschnig : 22 Sep 2015 10:28 |  Tags: Aphid Tuyv |  Comments (0) |  Close comments |  Report a problem