All entries for Friday 19 May 2017

Pest update from Wellesbourne

Between Tuesday and today we caught:

On 3 sticky traps in each of our carrot plots:

• 45 carrot flies - overwintered carrots
• 104 carrot flies - spring-sown carrots

We also recovered 16 cabbage root fly eggs from the soil around 15 cauliflower plants.

In the yellow water traps we caught:

• 17 male cabbage root flies and 13 females
• 45 bean seed flies
• 400 pollen beetles
• 56 flea beetles
• 9 cabbage stem weevils
• 4 cabbage seed weevils
• 1 cabbage stem flea beetle

Rosemary Collier : 19 May 2017 17:40 |  Comments (0) |  Close comments |  Report a problem

New edition of AHDB News published

The latest edition of AHDB Aphid News has just been published.

• Peach・potato aphids (Myzus persicae) have been caught throughout much of England in the suction-traps and in the Midlands, East Anglia and the South West in the yellow water-pan traps. Tests show these migrants are carrying high levels of Turnip yellows virus.
• Low numbers of the mealy cabbage aphid were caught less widely in both suction and yellow water traps.
• Single currant-lettuce aphids (Nasonovia ribisnigri) were caught at Hereford and Rothamsted this week.
• The willow ̶carrot aphid was caught at twelve sites this week, with numbers increasing at 11 sites and highest numbers at Kirton (60) and Hereford (53).
• Numbers of parsnip aphids, particularly Cavariella theobaldi, also increased.

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Rosemary Collier : 19 May 2017 16:29 |  Comments (0) |  Close comments |  Report a problem