Monitoring carrot fly at Wellesbourne
Numbers of carrot fly captured on 3 sticky traps at Wellesbourne in 2022
| Date | No. carrot fly on 3 traps |
| 22 November | 0 |
| 15 November | 5 |
| 8 November | 5 |
| 1 November | 9 |
| 25 October | 9 |
| 21 October | 7 |
| 18 October | 14 |
| 14 October | 16 |
| 11 October | 23 |
| 7 October | 17 |
| 4 October | 25 |
| 27 September | 35 |
| 23 September | 10 |
| 20 September | 20 |
| 16 September | 14 |
| 13 September | 15 |
| 9 September | 23 |
| 6 September | 13 |
| 2 September | 8 |
| 30 August | 21 |
| 26 August | 4 |
| 23 August | 8 |
| 19 August | 6 |
| 16 August | 5 |
| 12 August | 12 |
| 9 August | 8 |
| 5 August | 13 (new) |
| 2 August | 7 (new) |
| 29 Jul | 14 (new) |
| 26 July | 20 (first), 16 (second) |
| 22 July | 23 (first), 12 (second) |
| 19 July | 225 (first), 164 (second) |
| 15 July | 188 (first sowing), 108 (second sowing) |
| 12 July | 455 (first 2022 sowing), 333 (second 2022 sowing) |
| 8 July | 181 |
| 5 July | 60 |
| 1 July | 8 |
| 28 June | 12 |
| 24 June | 0 |
| 21 June | 1 |
| 17 June | 31 |
| 14 June | 30 |
| 10 June | 27 |
| 7 June | 87 |
| 31 May | 99 |
| 27 May | 70 (new only from now onwards) |
| 24 May | 18 (old)/ 123 (new) |
| 20 May | 25 (old)/106 (new) |
| 17 May | 26 (old)/92 (new) |
| 13 May | 54 (old)/148 (new) |
| 10 May | 66 (old carrots)/140 (new carrots) |
| 6 May | 57 |
| 3 May | 186 |
| 29 April | 88 |
| 26 April | 54 |
| 22 April | 10 |
| 19 April | 2 |
| 12 April | 0 |
| 5 April | 0 |
| 29 March | 0 |
| 22 March | 1 |
| 15 March | 0 |
The carrots in our monitoring plots are dying due to the size of the carrot fly infestation this year. We have a large infestation because we grow carrots year-round and do not treat them - to provide a source of flies for experimental work.
