All entries for Thursday 17 April 2014
April 17, 2014
Update on suction trap captures for week ending 13 April.
The most recent edition of AHDB Aphid News has just been published: ahdb_aphid_news_20140417.pdf
More aphids have been captured 'early':
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Four peach–potato aphids were caught (Broom’s Barn 3 and Kirton 1). The first arrival at Broom’s Barn was over four weeks earlier than the 10-year mean.
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A field report from eastern England identified a peach–potato aphid on a sugar beet crop at the cotyledon stage. Further field observations indicate aphids are flying, especially potato aphids.
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Three potato aphids (Macrosiphum euphorbiae) were caught, including first arrivals at Rothamsted and Kirton, four to five weeks earlier than the ten year means.
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The shallot aphid (Myzus ascalonicus) is the most numerous aphid species to date, with particular hotspots at Kirton and Wye.
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No cabbage aphids (Brevicoryne brassicae), willow carrot aphids (Cavariella aegopodii) or pea aphids (Acyrthosiphon pisum) were caught his week.