All entries for Friday 04 August 2017

AHDB Aphid News

The latest edition of AHDB News has been published. This summarises captures for the week ending 30th July.

• Black bean aphids were caught in single figures at four sites this week in the ST as well as across Scotland and Northern England in YWT (yellow-water traps) this week, with the highest number caught in the ST at Newcastle (3).
• Single peach–potato aphids (Myzus persicae) were caught at Gogarbank, Broom’s Barn and Hereford this week. Tests show that up to 43% of these migrants are carrying Turnip yellows virus. Peach–potato aphids were also found in the YWT across Scotland.
• A single mealy cabbage aphid (Brevicoryne brassicae) was caught at Wye this week.
• A single currant-lettuce aphid (Nasonovia ribisnigri) was caught in the ST at Starcross this week.
• Two willow ̶ carrot aphids (Cavariella aegopodii) were caught at Preston this week.
• The parsnip aphid (Cavariella pastinacae) was caught at Broom’s Barn (1), Newcastle (4), Preston (2), Rothamsted (4), Wellesbourne (8), Wye (2) and York (4) this week.
• A single parsnip aphid (Cavariella theobaldi) was caught at Starcross this week.

Rosemary Collier : 04 Aug 2017 15:42 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

Between Tuesday and today we caught:

On 3 sticky traps:

• 91 carrot flies

In 3 water traps in a plot of swedes.

• 28 male cabbage root flies and 11 females
• 13 bean seed flies
• 19 pollen beetles
• 19 flea beetles
• 2 cabbage stem weevils
• 2 cabbage stem flea beetles

We also recovered 2 cabbage root fly eggs from the soil around 15 cauliflower plants (new plants).

We caught 2 silver Y moths in our pheromone traps.

Rosemary Collier : 04 Aug 2017 14:30 |  Comments (0) |  Close comments |  Report a problem

Brassica aphids and virus news

Diana Katschnig : 04 Aug 2017 11:54 |  Tags: Aphid Tuyv |  Comments (0) |  Close comments |  Report a problem