All entries for Friday 25 May 2018
May 25, 2018
AHDB Aphid News
The latest edition of AHDB Aphid News has been released - for the week ending 20th May.
- The warm and dry weather conditions has resulted in another substantial increase in the total number of aphids flying this bulletin week.
- Peach・potato aphids (Myzus persicae) were recorded from Writtle and Starcross but no new arrivals were found. An individual was caught in the FERA yellow water-pan trap network from the Midlands.
- The first arrival of willow ̶ carrot aphids were recorded from Dundee and Newcastle this bulletin week. All fourteen suction-traps have now recorded this species as well as yellow water traps across several parts of England.
- The first arrival of potato aphid (Macrosiphum euphorbiae) was recorded from Silwood this week.
- First arrival of black bean aphid (Aphis fabae) from the suction-trap network was recorded from Starcross this bulletin week and in yellow water traps from East Anglia.
Pest update from Wellesbourne
Between 22nd and 25th May our 3 yellow water traps captured:
- Cabbage root flies - 7 males and 3 females
- Bean seed flies - 16
- Pollen beetles - 11
- Flea beetles - 2
- Cabbage stem weevil - 1
We also checked the carrot fly traps and caught 4 flies on 3 traps in overwintered carrots and 128 flies on 3 traps in spring-sown carrots.
There were no diamond-back moths, silver Y moths or cabbage moths in our traps but one turnip moth - the first of the year (2 traps per pest).
There were 9 cabbage root fly eggs around our 15 brassica plants.