All entries for Friday 11 July 2014

July 11, 2014

Rothamsted suction trap captures – week ending 6 July

The most recent bulletin has just been released.

Generally aphid flight activity as monitored by the suction-traps was down this week, with the exception of the cereal aphids.

  • Numbers of the peach–potato aphid (Myzus persicae) fell almost everywhere this week, with just a minor hotspot persisting at Wellesbourne.

  • The potato aphid (Macrosiphum euphorbiae) was caught in low numbers at seven sites.

  • The pea aphid (Acyrthosiphon pisum) has been caught at nine sites with a hotspot at Wellesbourne. Field reports indicate colonies present in many pea and bean crops.

  • The cabbage aphid (Brevicoryne brassicae) was caught at eight sites in central and southern England.

  • The black bean aphid, (Aphis fabae), was caught in nine suction-traps this bulletin week with a hotspot at Writtle (13).

  • The currant-lettuce aphid (Nasonovia ribisnigri) was caught at 4 sites in low numbers.

  • Numbers of willow-carrot aphid (Cavariella aegopodii) are low.

2014webbulletin14.pdf

ahdb_aphid_news_20140711.pdf


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