All entries for Friday 09 August 2019
August 09, 2019
The latest edition of AHDB Aphid Newshas been released for the week ending 4th August.
- Peach–potato aphid numbers were about the same as the previous week - but all were captured in Scotland.
- Two potato aphids were captured in Scotland.
- Cabbage aphid numbers declined to about half of the previous week.
- Single currant–lettuce aphids were captured at Inverness, Dundee and Starcross.
- Four willow-carrot aphids were captured; one each from Preston and Wellesbourne, as well as two from Hereford.
- Pea aphid numbers decreased to around 77% of the previous week.
- Five black bean aphids were captured.
When the water traps in the swede plot were checked today there were:
- 24 male and 11 female cabbage root flies
- 23 bean seed flies
- 11 flea beetles
- 99 pollen beetles
- 5 cabbage stem weevils
- 31 cabbage stem flea beetles
- 0 cabbage seed weevils
There were 133 carrot flies on the 3 sticky traps in the new plot for 2019.
54 cabbage root fly eggs were laid between 6th and 9th August (around 15 plants).
Two diamond-back moths, 2 turnip moths, 3 silver Y moths and no cabbage moths were captured in pheromone traps. There are 2 traps for each species.
We also caught 4 diamond-back moths on 5 carrot fly traps.