All entries for Saturday 30 July 2016
July 30, 2016
Update on Rothamsted suction trap captures – week ending 24th July
A new edition of the Rothamsted Insect Survey Aphid Bulletin has been published (week ending 24th July). The latest edition of AHDB APHID News is here.
- Numbers of peach–potato aphid (Myzus persicae) increased very slightly on last week, with highest numbers at Hereford.
- The numbers of willow ̶carrot aphid (Cavariella aegopodii) flying are now very low everywhere.
- A single currant-lettuce aphid (Nasonovia ribisnigri) was caught at Starcross.
- Numbers of parsnip aphids are low (Cavariella pastinaceae 2 at Newcastle, 3 at Kirton, 1 at Broom’s Barn and 2 at Starcross, but no Cavariella theobaldi).
- 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.
- Numbers of the pea aphid increased a little at 10 sites with highest numbers at Kirton, Broom’s Barn and Starcross.