Aphid bulletins
The latest editions of the Rothamsted Suction Trap Bulletin and AHDB Aphid News are attached. The information of interest to vegetable and salad growers is as follows:
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The peach–potato aphid (Myzus persicae) was caught at seven sites this week, with a first arrival at Wellesbourne (18/5). Both current and accumulated totals are below average.
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The potato aphid (Macrosiphum euphorbiae) was caught at four sites this week in low numbers, with first arrivals at Wellesbourne (24/5) and Hereford (22/5). Aphids have been found on potato ‘ground keepers’ in south Lincolnshire.
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Numbers of the willow ̶ carrot aphid (Cavariella aegopodii) have increased at 10/12 sites this week, with highest numbers in southern and eastern England.
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The mealy cabbage aphid (Brevicoryne brassicae) was caught at three sites this week, with first arrivals at Wellesbourne (22/5), Hereford (22/5) and Starcross (21/5). Accumulated numbers are well below the 10-year means.
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The pea aphid (Acyrthosiphon pisum) was caught at two sites this week, with a first arrival at Wellesbourne (22/5).
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The black bean aphid (Aphis fabae) has been caught at seven sites this week.
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The first currant-lettuce aphids (Nasonovia ribisnigri) of the year were captured (Wye and Starcross).
ahdb_aphid_news_20150529.pdf bulletin_07_2015.pdf
Rosemary Collier
29 May 2015 15:14
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