All entries for Tuesday 21 July 2015

Aphid and Turnip yellows virus News

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

• 9-13/07/2015, Intermediate numbers of M. persicae were caught (12 yellow water traps), 60% of those tested were carrying TuYV.
• 13-16/07/2015, High numbers of M. persicae were caught (12 yellow water traps), 69% of those tested were carrying TuYV.
• 6-11/07/2015, From the Rothamsted Insect Survey suction trap catch, 18 M. persicae were identified, 64% of those tested were carrying TuYV.

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

• 9-13/07/2015, High numbers of M. persicae were caught (12 yellow water traps), 85% of those tested were carrying TuYV.
• 13-16/07/2015, 11 M. persicae were caught (12 yellow water traps), 73% of these were carrying TuYV.
• 6-11/07/2015, From the Rothamsted Insect Survey suction trap catch, 48 M. persicae were identified, 79% of those tested 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 : 21 Jul 2015 16:32 |  Tags: Aphid Tuyv |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

Yesterday we found:

• 4 male and 51 female cabbage root flies (3 water traps)
• 15 bean seed flies (3 traps)
• 19 carrot flies (3 traps) in our new carrots
• 76 cabbage root fly eggs (15 cauliflower plants)
• 1 turnip moth (2 traps)
• 1 diamond-back moth (2 traps)
• 105 brassica flea beetles (3 traps)
• 31 pollen beetles (3 traps)
• 2 cabbage stem weevils (3 traps)
• 2 large white butterflies (3 traps)
• 14 small white butterflies (3 traps)

Rosemary Collier : 21 Jul 2015 09:46 |  Comments (0) |  Close comments |  Report a problem