Commission Directive 2006/56/EC of 12 June 2006 amending the Annexes to Council Directive 93/85/EEC on the control of potato ring rot
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Changes over time for: Division 2.1.
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EU Directives are published on this site to aid cross referencing from UK legislation. Since IP completion day (31 December 2020 11.00 p.m.) no amendments have been applied to this version.
2.1.Potato plantsU.K.
Under European climatic conditions symptoms are rarely found in the field and often only at the end of the season. Moreover the symptoms are frequently masked or confused by/with other diseases, senescence or mechanical damages. Therefore it may be easy to miss symptoms in field inspections. Wilting symptoms are very different from those of brown rot; wilting is usually slow and initially limited to the leaf margins. Young infected leaves often continue to expand although, less so in the infected zones. This creates odd shaped leaves. Leaves affected by blocking of the vascular tissues further down the stem often develop chlorotic, yellow to orange, intercostal areas. Infected leaflets, leaves and even stems may eventually die. Often leaves and tubers are simply reduced in size. Occasionally plants are stunted. Coloured pictures of a range of symptoms can be found on the web site http://forum.europa.eu.int/Public/irc/sanco/Home/main
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