All entries for Friday 24 April 2015
April 24, 2015
Aphid bulletins
A willow–carrot aphid (Cavariella aegopodii) was found in the Wellesbourne trap on 19th April, 13 days earlier than the 10-year average. The shallot aphid (Myzus ascalonicus) remains the most numerous aphid species in the suction-trap samples to date.
Cabbage root fly egg counts in Cornwall
HDC Project FV 416b - Brassicas: Treatments to control cabbage root fly - as part of this one-year HDC project, we are monitoring egg-laying by female cabbage root flies at 5 sites in Cornwall on a range of brassica crops. We’re sampling 20 plants per location and the numbers below are totals for the 20 plants. The sampling is being coordinated by Ellis Luckhurst.
Location |
Crop |
No. eggs (20 plants) on 20 April |
Helston |
Savoy cabbage |
3 |
Hayle |
Calabrese |
24 |
Gwithian |
Calabrese |
6 |
Truro/ Shortlanesend |
Calabrese |
6 |
St Columb |
Summer cauliflower |
18 |
Pest update from Wellesbourne
Today's 'captures' consist of:
- 6 male and 3 female cabbage root flies (3 water traps)
- 457 bean seed flies (3 traps)
- 20 flea beetles (3 traps)
- 2 carrot flies (3 traps)
- 3 cabbage root fly eggs (15 cauliflower plants)