All entries for April 2016

April 29, 2016

Pest update from Wellesbourne

Today there were 7 carrot flies (3 traps).

In the water traps (3) there were:

  • 19 male and 6 female cabbage root flies
  • 167 bean seed flies
  • 2 pollen beetles

There were no cabbage root fly eggs (15 cauliflower plants).


AHDB Aphid news

The latest issue of AHDB Aphid News has just been released (captures up to 24 April).

  • Large numbers of cabbage aphids (Brevicoryne brassicae) have been seen on individual plants in winter OSR.
  • No peach–potato aphids have been caught in the suction-traps this week, but a single potato aphid (Macrosiphum euphorbiae) was caught at Writtle.
  • This year’s first pea aphids were caught at Wellesbourne and Silwood, two to three weeks earlier than the 10-yr average, just as some peas and spring beans are now emerging.
  • The willow ̶carrot aphid was caught at four sites this week, these included first arrivals at Hereford (1) and Starcross (2) and captures at Kirton (2) and Brooms Barn (1).

April 26, 2016

Pest counts at Wellesbourne

Today there were 6 carrot flies (3 traps).

In the water traps (3) there were:

  • 30 male and 12 female cabbage root flies
  • 121 bean seed flies
  • 2 pollen beetles

There were no cabbage root fly eggs (15 cauliflower plants).


April 22, 2016

Pest numbers at Wellesbourne

Today there were 5 carrot flies (3 traps).

In the water traps (3) there were:

  • 35 male and 6 female cabbage root flies
  • 55 bean seed flies
  • 56 pollen beetles
  • 8 flea beetles
  • 7 cabbage stem weevils

There were no cabbage root fly eggs (15 cauliflower plants).


AHDB Aphid News

The latest issue of AHDB Aphid News has just been released.

  • Many reports have been received of large numbers of cabbage aphids (Brevicoryne brassicae) on individual plants in winter oil seed rape in the South West and the West Midlands.
  • No peach–potato aphids have been caught in the suction-trap this week, but a single potato aphid (Macrosiphum euphorbiae) was caught at Rothamsted, four weeks earlier than the 10-yr average.
  • Single willow ̶carrot aphids were caught at three sites this week (Broom's Barn, Writtle and Wye), including a first arrival at Wye.

April 19, 2016

Trap captures at Wellesbourne today!

Today there were 3 carrot flies (3 traps).

In the water traps (3) there were:

  • 34 male and 11 female cabbage root flies
  • 103 bean seed flies
  • 24 pollen beetles
  • 3 flea beetles
  • No cabbage stem weevils

There was one cabbage root fly egg (15 cauliflower plants).


April 18, 2016

Trap captures at Wellesbourne on Friday, 15th April

Our traps were checked on Friday and there were no carrot flies (3 traps).

In the water traps (3) there were:

  • 27 male and 2 female cabbage root flies
  • 43 bean seed flies
  • 498 pollen beetles
  • 15 flea beetles
  • 23 cabbage stem weevils

There were no cabbage root fly eggs (15 cauliflower plants).


April 15, 2016

AHDB Aphid News

The latest edition of AHDB News has just been published.

The information below relates to suction-trap samples collected during Bulletin Week 3: 04/4 – 10/4.

  • A field report has been received of mealy cabbage aphids (Brevicoryne brassicae) in winter OSR in the west midlands.
  • No peach–potato aphids have been caught in the suction-trap this week.
  • Two willow ̶carrot aphids were caught this week, both were first arrivals, one at York and one at Writtle, the latter being three weeks earlier than the 10-year average.

April 12, 2016

Update from Wellesbourne

Our traps were checked this morning and there were 4 carrot flies (3 traps).

In the water traps (3) there were:

  • 14 male and 5 female cabbage root flies
  • 123 bean seed flies
  • 80 pollen beetles
  • 3 flea beetles

April 08, 2016

AHDB Aphid News

Here is the latest edition of AHDB News.

  • The peach–potato aphid has been caught at two sites in south-eastern England this week. These were first arrivals at Writtle and Silwood, both were over a month earlier than the 10-year average.
  • A single willow ̶ carrot aphid (Cavariella aegopodii) was caught at Kirton.
  • The shallot aphid (Myzus ascalonicus) is the most numerous aphid species in our suction-trap samples to date and has been caught at Starcross, Devon all the way up to York, a similar spread to last week.

April 2016

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