All entries for Saturday 07 October 2017
October 07, 2017
Between Tuesday and yesterday we found the following:
On 3 sticky traps:
- 228 carrot flies
In 3 water traps in a plot of swedes.
- 43 male cabbage root flies and 7 females
- 48 bean seed flies
- 1 pollen beetle
- 2 flea beetles
We have stopped sampling for cabbage root fly eggs.
We caught 3 silver Y moths in our pheromone traps.
The latest edition of AHDB Aphid News has just been published.
- Peach–potato aphids (Myzus persicae) were caught at twelve suction trap sites. The highest number caught was from the trap at Hereford (42).
- Mealy cabbage aphids (Brevicoryne brassicae) were caught and increasing in number at Kirton (6), Hereford (1) and Wye (4).
- The willow-carrot aphid (Cavariella aegopodii) was caught in four sites this week. Numbers have increased most noticeably at Dundee and to a lesser extent at York and Kirton . A further four male individuals were caught from Dundee this week suggesting that the autumn migration back to willows to overwinter is underway