All entries for Friday 29 May 2015
May 29, 2015
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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Pest update from Wellesbourne
Today we found:
- 0 male and 8 female cabbage root flies (3 water traps)
- 35 bean seed flies (3 traps)
- 94 carrot flies (3 traps) in our new carrots
- 1 pollen beetle
- 1 cabbage stem weevil
- 62 cabbage root fly eggs (15 cauliflower plants)
- 3 turnip moths (2 traps) - first of the year
Rosemary Collier
29 May 2015 14:18
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