Update on Rothamsted suction trap captures – week ending 17th July

A new edition of the Rothamsted Insect Survey Aphid Bulletin has been published (week ending 17th July). The latest edition of AHDB APHID News is here.

• Numbers of peach–potato aphid (Myzus persicae) and the potato aphid (Macrosiphum euphorbiae) remain very low this week.
• The numbers of willow ̶carrot aphid (Cavariella aegopodii) flying are now very low everywhere.
• A single currant-lettuce aphid (Nasonovia ribisnigri) was caught at Rothamsted.
• Numbers of parsnip aphids (Cavariella pastinaceae 1 at Preston and 3 at Starcross but no Cavariella theobaldi), are also very low.
• Numbers of the black bean aphid (Aphis fabae) are conspicuously low, both for the time of year and compared to the large migrations seen in 2015.
  

Rosemary Collier : 22 Jul 2016 22:10 |  Comments (0) |  Report a problem