All entries for June 2013

Rothamsted Suction Trap counts

Writing about web page http://www.rothamsted.ac.uk/insect-survey/Bulletins/2013WebBulletin9.pdf

The Bulletin for aphids captured between 17 and 23 June was released yesterday:

• Aphis fabae (black-bean aphid) was captured at 4 sites towards the south
• Cabbage aphid was captured at only one site - Writtle
• Potato aphid was captured at 12 sites
• Peach-potato aphid was captured at 7 sites
• Currant-lettuce aphid was captured at Ayr and Wellesbourne
• Willow-carrot aphid was captured at 13 sites - and in relatively high numbers at several sites in the 'middle' of the country

Rosemary Collier : 29 Jun 2013 06:40 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

Yesterday's sampling produced:

• 36 carrot flies (3 traps)
• 14 cabbage root fly eggs (15 plants)
• 83 bean seed flies (3 traps)
• 6 pollen beetles (3 traps)
• 3 turnip moths (2 traps)
• 7 silver Y moths (2 traps)

Rosemary Collier : 26 Jun 2013 16:49 |  Comments (0) |  Close comments |  Report a problem

Willow–carrot aphid at Wellesbourne

The willow-carrot aphid counts from the carrot plot look like this:

Rosemary Collier : 26 Jun 2013 16:49 |  Comments (0) |  Close comments |  Report a problem

Pests at Wellesbourne

Pests recovered today included:

• 18 carrot flies (3 traps)
• 11 cabbage root fly eggs (15 plants)
• 38 bean seed flies (3 traps)
• 29 pollen beetles (3 traps)
• 2 turnip moths (2 traps)

Large narcissus flies are still emerging.

Rosemary Collier : 21 Jun 2013 22:48 |  Comments (1) |  Close comments |  Report a problem

Rothamsted Suction Trap Captures

Writing about web page http://www.rothamsted.ac.uk/insect-survey/Bulletins/2013WebBulletin8.pdf

The latest aphid bulletin (10-16 June) has just been released.

• No cabbage aphids have been caught in the suction traps.
• The willow–carrot aphid was caught at fourteen sites with numbers increasing at nine sites and highest at Preston (138) and Broom’s Barn (183).
• The first currant–lettuce aphid was caught at Rothamsted - none caught elsewhere.
• Potato aphids were caught at six sites in low numbers.
• Peach-potato aphids were caught at four sites.

There is more detail on captures of the pest aphids of vegetable crops here.aphid_news20130621.pdf

Rosemary Collier : 21 Jun 2013 22:41 |  Comments (0) |  Close comments |  Report a problem

Aphid Special Interest Group meeting 11th September 2013

We are organising this year's Aphid Special Interest Group meeting for the Royal Entomological Society. It will be in Leamington Spa and the venue is quite close to the railway station. Registration is £20 - including lunch and refreshments. Offers of papers and posters are very welcome.

Rosemary Collier : 19 Jun 2013 15:59 |  Comments (0) |  Close comments |  Report a problem

Another update from Wellesbourne

Today the team have been looking for pests on plants. Andy checked out the untreated plots in the Brussels sprout trial - which is part of the SCEPTRE project. There were hardly any pests on the foliage - a few peach-potato aphids and one diamond-back moth caterpillar - which ties in well with the absence of these pests in our traps.

Marian counted the willow-carrot aphids in our carrot fly monitoring plot. There were 44 winged aphids and 55 wingless aphids on 3 x 0.5 m lengths of row - an increase on last week. There was also one parasitised aphid (parasitic wasp). The usual pattern of Wellesbourne is for the level of parasitism to increase over time until it finally wipes the population out.

We're continuing to collect large narcissus flies.....

Rosemary Collier : 18 Jun 2013 17:31 |  Comments (0) |  Close comments |  Report a problem

Wellesbourne update

Today we recovered:

• 9 carrot flies (3 traps)
• 4 cabbage root fly eggs (15 plants)
• 38 bean seed flies (3 traps)
• 4 turnip moths (2 traps)
• No silver Y moths or diamond-back moths

Rosemary Collier : 17 Jun 2013 17:21 |  Comments (0) |  Close comments |  Report a problem

Rothamsted suction trap captures

Writing about web page http://www.rothamsted.ac.uk/insect-survey/Bulletins/2013WebBulletin7.pdf

The latest Aphid Bulletin has just been released. This includes:

• Capture of the first cabbage aphid of the year at Starcross in Devon
• Relatively high numbers of willow-carrot aphid at Preston and several sites further south
• Low numbers of potato aphids at several sites - from Scotland to Devon
• Two peach-potato aphids at Starcross
• One currant-lettuce aphid at Wellesbourne and one at Starcross

This document gives a bit more detail about the pest aphids of vegetables: aphid_news20130614.pdf

Rosemary Collier : 14 Jun 2013 14:18 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

In addtion to the turnip moth we found:

• 9 carrot flies (3 traps) - so numbers are decreasing quite rapidly now.
• 41 cabbage root fly eggs (15 plants)
• 14 bean seed flies (3 traps)
• 1 pollen beetle
• 1 suspected 'brassica' leaf miner (Scaptomyza flava)
• No other pest moths

Rosemary Collier : 13 Jun 2013 15:45 |  Comments (0) |  Close comments |  Report a problem