All entries for Friday 24 June 2016

Update on trap captures 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 = 60

On 3 sticky traps:

• Carrot fly = 9

In 3 water traps:

• Cabbage root fly males = 2
• Cabbage root fly females = 12
• Bean seed flies = 46
• Flea beetles = 88
• Pollen beetles = 445
• Cabbage stem weevils = 4

Cabbage root fly eggs = 7 (15 plants)

Rosemary Collier : 24 Jun 2016 17:08 |  Comments (0) |  Close comments |  Report a problem

Latest update on Rothamsted suction trap captures

The latest edition of AHDB Aphid News has just been published and the counts on which is based (for the week ending 19th June) are here.

• Numbers of the peach–potato aphid were down on last week’s highs, but still with hotspots at Wellesbourne (278) and Kirton (107).
• The cabbage aphid was caught at six sites, with a hotspotat Wellesbourne (108).
• The willow ̶carrot aphid was caught at all sites, with numbers increasing in the North, but generally falling elsewhere. There were hotspots at York (103) and Kirton (105).
• The pea aphid was caught at 11 sites, with highest numbers at Wellesbourne (28) and Kirton (24).
• Starcross continues as a very distinctive hotspot for black bean aphids, elsewhere it has been reluctant to visit the suction traps.
• A single currant-lettuce aphid (Nasonovia ribisnigri) was caught at Wellesbourne.
• Numbers of parsnip aphids were down (Cavariella pastinaceae at Preston 22, Wellesbourne 2, York 12 and Wye 2 plus Cavariella theobaldi at Preston 20 and Starcross 1).
  

Rosemary Collier : 24 Jun 2016 15:39 |  Comments (0) |  Close comments |  Report a problem