All entries for September 2016

Rothamsted Insect Survey Aphid Bulletin

A new edition of the Rothamsted Insect Survey Aphid Bulletin has been published (week ending 25th September).

Rosemary Collier : 30 Sep 2016 13:54 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

On Friday, 23rd September we captured:

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 = 75 (in second sowing)

In 3 water traps:

• Cabbage root fly males = 26
• Cabbage root fly females = 31
• Bean seed flies = 32
• Flea beetles = 3
• Pollen beetles = 0
• Small white butterfly = 0
• Large white butterfly = 0
• Cabbage stem weevil = 0

Cabbage root fly eggs = 48 (15 plants)

Rosemary Collier : 30 Sep 2016 13:52 |  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 : 28 Sep 2016 14:37 |  Tags: Aphid Tuyv |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne for 23 and 27 September

On Tuesday, 27th September we 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 = 56 (in second sowing)

In 3 water traps:

• Cabbage root fly males = 35
• Cabbage root fly females = 25
• Bean seed flies = 33
• Flea beetles = 1
• Pollen beetles = 0
• Small white butterfly = 0
• Large white butterfly = 0
• Cabbage stem weevil = 0

Cabbage root fly eggs = 44 (15 plants)

On Friday, 23rd September we 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 = 22 (in second sowing)

In 3 water traps:

• Cabbage root fly males = 5
• Cabbage root fly females = 8
• Bean seed flies = 18
• Flea beetles = 3
• Pollen beetles = 0
• Small white butterfly = 0
• Large white butterfly = 0
• Cabbage stem weevil = 0

Cabbage root fly eggs = 6 (15 plants)

Rosemary Collier : 27 Sep 2016 17:06 |  Comments (0) |  Close comments |  Report a problem

Rothamsted Insect Survey Aphid Bulletin

A new edition of the Rothamsted Insect Survey Aphid Bulletin has been published (week ending 18th September). The numbers of Myzus persicae appear to have increased a bit since the last Bulletin.

Rosemary Collier : 23 Sep 2016 16:46 |  Comments (0) |  Close comments |  Report a problem

Pest update for Wellesbourne on Tuesday 20th September

Since Friday we have captured:

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 = 22 (in second sowing)

In 3 water traps:

• Cabbage root fly males = 5
• Cabbage root fly females = 18
• Bean seed flies = 10
• Flea beetles = 1
• Pollen beetles = 0
• Small white butterfly = 1
• Large white butterfly = 0
• Cabbage stem weevil = 0

Cabbage root fly eggs = 9 (15 plants)

On our untreated brassicas there are a few cabbage aphid colonies and a developing infestation of cabbage whitefly. we also have small numbers of caterpillars of cabbage moth, garden pebble moth and small white butterfly.

Rosemary Collier : 21 Sep 2016 09:40 |  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 : 20 Sep 2016 09:19 |  Tags: Aphid Tuyv |  Comments (0) |  Close comments |  Report a problem

Update on pest numbers at Wellesbourne

Since Tuesday we have captured:

In pheromone traps (2 per species):

• Turnip moth = 0
• Silver Y moth = 0
• Cabbage moth = 0
• Diamond-back moth = 1

On 3 sticky traps:

• Carrot fly = 8 (in second sowing)

In 3 water traps:

• Cabbage root fly males = 8
• Cabbage root fly females = 12
• Bean seed flies = 15
• Flea beetles = 7
• Pollen beetles = 0
• Small white butterfly = 1
• Large white butterfly = 0
• Cabbage stem weevil = 0

Cabbage root fly eggs = 9 (15 plants)

On our untreated brassicas there are a few cabbage aphid colonies and a developing infestation of cabbage whitefly. we also have small numbers of caterpillars of cabbage moth, garden pebble moth and small white butterfly.

Rosemary Collier : 16 Sep 2016 17:25 |  Comments (0) |  Close comments |  Report a problem

Update on Rothamsted suction trap captures

A new edition of the Rothamsted Insect Survey Aphid Bulletin has been published (week ending 11th September). The latest edition of AHDB News can be found here.

• The peach–potato aphid was caught at six suction-trap sites, with highest numbers at Dundee.
• The cabbage aphid was caught at just two sites, Kirton and Hereford.
• Numbers of both species are normal for the time of year.

Rosemary Collier : 16 Sep 2016 15:25 |  Comments (0) |  Close comments |  Report a problem

Pest update for Wellesbourne – 13th September

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 = 11 (in second sowing)

In 3 water traps:

• Cabbage root fly males = 9
• Cabbage root fly females = 33
• Bean seed flies = 21
• Flea beetles = 10
• Pollen beetles = 0
• Small white butterfly = 3
• Large white butterfly = 0
• Cabbage stem weevil = 0

Cabbage root fly eggs = 23 (15 plants)

On our untreated brassicas there are a few cabbage aphid colonies and a developing infestation of cabbage whitefly. we also have small numbers of caterpillars of cabbage moth, garden pebble moth and small white butterfly.

Rosemary Collier : 15 Sep 2016 15:18 |  Comments (0) |  Close comments |  Report a problem