All entries for Tuesday 11 October 2016
October 11, 2016
Pest update from Wellesbourne – Tuesday 11th October
In pheromone traps (2 per species):
- Turnip moth = 1
- Silver Y moth = 0
- Cabbage moth = 0
- Diamond-back moth = 0
On 3 sticky traps:
- Carrot fly = 285
In 3 water traps:
- Cabbage root fly males = 12
- Cabbage root fly females = 4
- Bean seed flies = 35
- Flea beetles = 1
- Pollen beetles = 0
- Small white butterfly = 0
- Large white butterfly = 0
- Cabbage stem weevil = 1
Cabbage root fly eggs = 3 (15 plants)
Brassica aphids and virus News
The proportion of peach potato aphid (M. persicae) carrying Turnip yellows virus (TuYV)
Date |
Type of trap |
Numbers of M. persicae caught |
% of those tested carrying TuYV |
Wellesbourne, Warwickshire |
|||
26/9-02/10/2016 |
Suction trap |
3 |
0% |
29/9-03/10/2016 |
Yellow water traps |
3 |
66% |
03/10-06/10/2016 |
Yellow water traps |
0 |
- |
Kirton, Lincolnshire |
|||
26/9-02/10/2016 |
Suction trap |
4 |
50% |
Leverton, Lincolnshire |
|||
29/9-03/10/2016 |
Yellow water traps |
22 |
36% |
03/10-06/10/2016 |
Yellow water traps |
4 |
0% |
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 as part of project ‘Developing integrated approaches for pest and disease control in horticultural field crops’ with funding from the BBSRC Horticulture And Potato Initiative (HAPI).
Diana Katschnig and Angela Hambidge, Plant-Virus Interactions Group, University of Warwick; Alex Greenslade, Rothamsted Research & Rothamsted Insect Survey; Carl Sharp, Allium & Brassica Agronomy Ltd.