All entries for Friday 05 June 2015

Aphid bulletins

The latest editions of the Rothamsted Suction Trap Bulletin and AHDB Aphid News are attached. The information of interest to vegetable and salad growers is as follows:

• Numbers of the peach–potato aphid (Myzus persicae) are increasing with highest numbers in eastern England.

• The potato aphid (Macrosiphum euphorbiae) was caught at three sites this week in low numbers.

• Numbers of the willow ̶ carrot aphid (Cavariella aegopodii) have increased at 9/13 sites this week, with highest numbers in southern and eastern England.

• The mealy cabbage aphid (Brevicoryne brassicae) was caught at seven sites this week, with first arrivals at Kirton (30/5), Broom’s Barn (26/5) and Rothamsted (30/5). Accumulated numbers are well below the 10-year means.

• The pea aphid (Acyrthosiphon pisum) was caught at four sites this week, with first arrivals at Broom’s Barn (30/5) and Rothamsted (27/5), plus a field report of pea aphids in a crop in eastern England.

• The black bean aphid (Aphis fabae) has been caught at seven sites this week, with highest numbers at Broom’s Barn. Field reports from East Anglia indicate big colonies on both spring (10-20%) and winter beans (<10%).

ahdb_aphid_news_20150605.pdf bulletin_08_2015.pdf

Rosemary Collier : 05 Jun 2015 17:06 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

Today we found:

• 0 male and 27 female cabbage root flies (3 water traps)
• 69 bean seed flies (3 traps)
• 87 carrot flies (3 traps) in our new carrots
• 24 cabbage root fly eggs (15 cauliflower plants)
• 2 turnip moths (2 traps)
• 2 silver Y moths (2 traps)

Rosemary Collier : 05 Jun 2015 17:06 |  Comments (0) |  Close comments |  Report a problem