All entries for Tuesday 23 August 2016

Pest update from Wellesbourne

Since Friday we have captured:

In pheromone traps (2 per species):

• Turnip moth = 0
• Silver Y moth = 0
• Cabbage moth = 0
• Diamond-back moth = 0

On 3 sticky traps:

• Carrot fly = 21 (in second sowing)

In 3 water traps:

• Cabbage root fly males = 2
• Cabbage root fly females = 12
• Bean seed flies = 3
• Flea beetles = 28
• Pollen beetles = 4
• Small white butterfly = 3
• Large white butterfly = 0
• Cabbage stem weevil = 0

Cabbage root fly eggs = 50 (15 plants)

On our untreated brassicas there are some cabbage aphid colonies and a developing infestation of cabbage whitefly.

Rosemary Collier : 23 Aug 2016 20:49 |  Comments (0) |  Close comments |  Report a problem

Brassica aphids and virus News

The proportion of peach potato aphid (M. persicae) carrying Turnip yellows virus (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 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.

Angela Hambidge : 23 Aug 2016 09:54 |  Tags: Aphid Tuyv |  Comments (0) |  Close comments |  Report a problem