All entries for Friday 12 May 2017

AHDB Aphid News

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

• Peach–potato aphids were caught at six suction-trap sites, with highest numbers at Wye and Starcross. The aphid has also been found in yellow water-traps in south western England (moderate virus pressure) and East Anglia (low virus pressure).
• Willow–carrot aphids were caught at Edinburgh and all sites from Preston southwards, with a hotspot at Starcross (28). Parsnip aphid counts were: Cavariella pastinaceae Wye 1 and Cavariella theobaldi Preston 1, Kirton 1, Wellesbourne 1, Writtle 2, Silwood 3, Wye 4 and Starcross 9.
• Black bean aphids were caught at five suction-trap sites and in the yellow water-traps samples from the south west.
• This year’s first currant–lettuce aphid was caught at Wellesbourne this week.
  

Rosemary Collier : 12 May 2017 20:40 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

Between Tuesday and today we caught:

On 3 sticky traps in each of our carrot plots:

• 39 carrot flies - overwintered carrots
• 154 carrot flies - spring-sown carrots

In 4 water traps - 3 near our overwintered swede plot and 1 near some oil seed rape:

• 4 male cabbage root flies and 3 females
• 5 bean seed flies
• 149 pollen beetles
• 35 flea beetles
• 7 cabbage stem weevils
• 1 cabbage seed weevil

We also recovered 20 cabbage root fly eggs from the soil around 15 cauliflower plants.

We caught one diamond-back moth (2 pheromone traps).

We have also caged some areas planted with narcissus in order to record emergence of large narcissus fly - none so far.

Rosemary Collier : 12 May 2017 20:38 |  Comments (0) |  Close comments |  Report a problem