Pest update from Wellesbourne
When the water traps in the swede plot were checked today there were:
- 2 male and 3 female cabbage root flies
- 9 bean seed flies
- 14 flea beetles
- Approx 10,500 pollen beetles
- 19 cabbage stem weevils
- 4 cabbage stem flea beetles
- 0 cabbage seed weevils
There were 11 carrot flies on the 3 sticky traps in the new plot for 2019.
121 cabbage root fly eggs were laid between 21 and 25 June (around 15 plants).
4 diamond-back moths and 1 turnip moth were captured. No moths were captured in our other pheromone traps (silver Y moth, cabbage moth, diamond-back moth). There are 2 traps for each species.
We also caught 4 diamond-back moths on 5 carrot fly traps, 3 of which are in our carrots (above) and 2 are in the swede plot and are baited with a pheromone lure (experimental).