All entries for Friday 05 August 2016

Update on Rothamsted suction trap captures – week ending 31st July

A new edition of the Rothamsted Insect Survey Aphid Bulletin has been published (week ending 31st July). The latest edition of AHDB APHID News is here.

• Numbers of peach–potato aphid (Myzus persicae) increased very slightly on last week, with the highest numbers at Kirton (11).
• The numbers of willow ̶carrot aphid (Cavariella aegopodii) flying are low everywhere.
• A single currant-lettuce aphid (Nasonovia ribisnigri) was caught at Edinburgh.
• Numbers of parsnip aphids are low (Cavariella pastinaceae Newcastle 1, York 6, Preston 2, Broom's Barn 1, Rothamsted 2, Writtle 1, Wellesbourne 1 and Starcross 3, but no Cavariella theobaldi).
• Numbers of the black bean aphid (Aphis fabae) remain very low, but it was caught at eight sites spread right across the UK this week.
• The pea aphid was caught at nine sites with highest numbers at Kirton (28) and Broom’s Barn (42).

Rosemary Collier : 05 Aug 2016 15:57 |  Comments (0) |  Close comments |  Report a problem

Pest update from 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 = 2

On 3 sticky traps:

• Carrot fly = 17 (in second sowing)

In 3 water traps:

• Cabbage root fly males = 2
• Cabbage root fly females = 76
• Bean seed flies = 7
• Flea beetles = 13
• Pollen beetles = 11
• Small white butterfly = 0
• Large white butterfly = 1
• Cabbage stem weevil = 0

Cabbage root fly eggs = 194 (15 plants)

Rosemary Collier : 05 Aug 2016 15:56 |  Comments (0) |  Close comments |  Report a problem