First described in the USA in 1917, neck rot can be a major source of losses in stored bulb onions in the UK. The extent of losses is variable. Losses of over 50% were reported in the late 60s and early 70s and, more recently, losses of up to 40% have been reported in individual crops. This factsheet draws together recent results from several AHDB Horticulture projects, together with historical information from the UK and the worldwide scientific literature.
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