Yellow water traps and cabbage root fly eggs at Wellesbourne 2026
These are the numbers of pest insects captured in yellow water traps at Wellesbourne.
CRF = cabbage root fly; CSFB = cabbage stem flea beetle; cq = cabbage stem weevil; ca = cabbage seed weevil
| CRF males | CRF females | CRF eggs (15 plants) | Bean seed flies | Pollen beetle | Flea beetles | CQ | CA | CSFB | Small white butterfly | Large white butterfly | |
| 24-Mar | 0 | 1 | - | 0 | 128 | 37 | 34 | 1 | 1 | 0 | 0 |
| 31-Mar | 13 | 4 | - | 4 | 10 | 8 | 1 | 1 | 1 | 0 | 0 |
| 07-Apr | 2 | 2 | - | 4 | 15 | 16 | 24 | 0 | 0 | 0 | 0 |
| 10-Apr | 6 | 3 | - | 0 | 14 | 23 | 18 | 15 | 0 | 0 | 0 |
| 14-Apr | 21 | 11 | - | 14 | 8 | 2 | 9 | 3 | 0 | 0 | 0 |
| 17-Apr | 25 | 10 | - | 16 | 28 | 7 | 6 | 0 | 0 | 0 | 0 |