AHDB Aphid News

The latest edition of AHDB Aphid News has just been released.

• The peach–potato aphid (Myzus persicae) numbers continued to increase this week, with high numbers in the ST (suction trap) at Broom’s Barn and Wellesbourne, as well as very high numbers in the YWT (yellow water trap) in northern England. Tests show that 60-70% of these migrants are carrying Turnip yellows virus.
• The potato aphid (Macrosiphum euphorbiae) and the glasshouse and potato aphid (Aulacorthum solani) have been caught in above average numbers for the time of year in the ST and in a range of YWT.
• Black bean aphids are being caught across the country in low numbers.
• The mealy cabbage aphid was caught in both ST and YWT, with highest numbers in the midlands where it has also been reported from some OSR crops.
• No currant-lettuce aphids (Nasonovia ribisnigri) were caught in the ST this week.
• The willow–carrot aphid migration has started to decline this week, with high ST numbers still at Kirton (255). Numbers of parsnip aphids are high at Wellesbourne and Hereford.

Rosemary Collier : 09 Jun 2017 15:29 |  Comments (0) |  Report a problem