All entries for May 2014

Abundant carrot flies at Warwick Crop Centre

Carrot flies on one of the Wellesbourne traps today! There were 1174 carrot flies in total on our 3 traps.

Rosemary Collier : 15 May 2014 20:19 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

Between Friday (9th) and Tuesday (13th) we captured:

• 742 carrot flies on traps in this year's crop of carrots (3 traps)

In the 3 water traps in the old swede crop:

• 30 male and 14 female cabbage root flies
• 386 bean seed flies
• 20 pollen beetles
• 1 flea beetle

We collected a total of 98 cabbage root fly eggs from around 15 cauliflower plants (planted 15 April). We have also set up 3 water traps there now and they caught:

• 17 male and 21 female cabbage root flies
• 232 bean seed flies
• 5 pollen beetles
• 2 flea beetles

We caught 1 silver Y moth (2 traps.)

Rosemary Collier : 14 May 2014 08:46 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne – 9th May

The water trap samples for today have not been sorted yet.

However, there were:

• 55 cabbage root fly eggs (from 15 cauliflower plants)
• 265 carrot flies on the traps in the newly-sown plot (the traps in the overwintered carrots have been removed).
• 1 diamond-back moth (2 traps).

Rosemary Collier : 09 May 2014 21:14 |  Comments (0) |  Close comments |  Report a problem

Rothamsted suction trap captures for week ending 4 May

This alert summarises up-to-date results from the Rothamsted/SASA suction-trap (ST) network and the FERA yellow water-pan trap (YWT) network: ahdb_aphid_news_20140509.pdf

Most aphids, as predicted, are flying two to four weeks earlier than usual. This is mainly as a result of the mild winter, helped by the favourable conditions of spring. The very wet winter does not appear to have had a major impact. Spring crops, especially if sown/planted later than usual are expected to be at higher than usual risk from aphids.

Peach–potato aphid is flying earlier and in larger numbers than usual. The potato aphid has been caught as far north as Elgin. Cabbage aphid is already on the wing in the far South and is expected generally to fly earlier than usual.

Willow–carrot aphid is flying throughout England a week or so earlier than usual.

Pea aphid is flying in the South East two to four weeks earlier than usual.

Rosemary Collier : 09 May 2014 15:02 |  Comments (0) |  Close comments |  Report a problem

Pest update Tuesday, 6th May

Between Friday (2nd) and Tuesday (6th) we captured:

• 178 carrot flies on traps in the overwintered carrots (3 traps)
• 915 carrot flies on traps in newly-emerged carrots (3 traps)

In the 3 water traps:

• 111 male and 25 female cabbage root flies
• 372 bean seed flies
• 15 pollen beetles

We collected a total of 102 cabbage root fly eggs from around 15 cauliflower plants (planted 15 April).

We caught 1 diamond-back moth (2 traps.)

We have pheromone traps out for European tarnished plant bug and common green capsid - and caught 1 European tarnished plant bug.

Rosemary Collier : 09 May 2014 08:54 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

Between Tuesday and Friday (2 May) we captured:

• 117 carrot flies on traps in the overwintered carrots (3 traps)
• 539 carrot flies on traps in newly-emerged carrots (3 traps)

In the 3 water traps:

• 62 male and 11 female cabbage root flies
• 300 bean seed flies
• 3 pollen beetles
• 1 flea beetle

We collected a total of 42 cabbage root fly eggs from around 15 cauliflower plants (planted 15 April).

We have pheromone traps out for European tarnished plant bug and common green capsid - and caught 2 European tarnished plant bugs.

Rosemary Collier : 03 May 2014 07:10 |  Comments (0) |  Close comments |  Report a problem

Rothamsted suction trap captures week ending 27th April

One particularly good day out of seven during Bulletin Week 4: 21/4-27/4 was enough to ratchet up the aphids caught in the suction-trap samples ahdb_aphid_news_20140502.pdf.

• Ten peach-potato aphids were caught this week (Broom’s Barn 5, Writtle, 1 Wye 3, Starcross 1).
• Seven potato aphids were caught including first arrivals at Elgin, Writtle and Wye, all earlier that the 10-year means.
• First arrivals of pea aphid at 3 new sites ties in with field reports of pea aphids at low levels in pea and bean crops.
• The first cabbage aphid this year was caught at Wye and coincides with a field report of cabbage aphids in rape in Kent
• The spring migration of willow carrot aphid got underway this week with 5 new arrivals. This ties in the HDC Pest Bulletin willow-carrot aphid forecast.

Aphids in general are appearing much earlier that average and in line with the predictions made in early March.

Rosemary Collier : 03 May 2014 07:02 |  Comments (0) |  Close comments |  Report a problem