All entries for Tuesday 07 July 2015
July 07, 2015
FV 416b – cabbage root fly egg counts in Cornwall
The egg counts up to Monday 6th July are as follows - they show the mean numbers of eggs per plant per week found around a sample of 20 plants per location:
| Helston | Hayle | Gwithian | Truro | St Columb | |
| 20-Apr | 0.2 | 1.2 | 0.3 | 0.3 | 0.9 |
| 27-Apr | 0.9 | 12.0 | 2.1 | 1.2 | 18.0 |
| 05-May | 0.8 | 12.2 | 8.2 | 4.0 | 4.1 |
| 11-May | 2.6 | 20.1 | 2.8 | 3.1 | 5.7 |
| 18-May | 4.7 | 17.1 | 1.7 | 5.6 | 19.8 |
| 25-May | 2.3 | 7.4 | 0.4 | 0.7 | 18.4 |
| 01-Jun | 0.3 | 4.1 | 1.1 | 0.9 | 0.9 |
| 08-Jun | 0.6 | 5.4 | 0.3 | 0.2 | 1.0 |
| 15-Jun | 0.3 | 2.2 | 0.5 | 0.3 | 1.4 |
| 22-Jun | 0.7 | 4.6 | 0.8 | 0.5 | 0.4 |
| 29-Jun | 2.15 | 3.85 | 0.25 | 0.95 | 1.15 |
| 06-Jul | 2.3 | 0.55 | 0.4 | 1.8 | 2.6 |
Rosemary Collier
07 Jul 2015 21:53
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Pest update from Wellesbourne
Yesterday we found:
- 8 male and 20 female cabbage root flies (3 water traps)
- 14 bean seed flies (3 traps)
- 4 carrot flies (3 traps) in our new carrots
- 46 cabbage root fly eggs (15 cauliflower plants)
- 6 turnip moths (2 traps)
- 3 diamond-back moth (3 traps)
- 1 silver Y moth (3 traps)
- 70 brassica flea beetles (3 traps)
- 24 pollen beetles (3 traps)
Rosemary Collier
07 Jul 2015 08:09
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