# Council Directive 98/57/EC of 20 July 1998 on the control of Ralstonia solanacearum (Smith) Yabuuchi et al., Division 4.1.2

Extent: E+W+S+N.I.

Incubate plates at 28 °C. Read plates after 48 hours and daily thereafter up to six days. Typical R. solanacearum colonies on SMSA medium are milky white, flat, irregular and fluidal and after three days incubation develop pink to blood-red coloration in the centre with internal streaking or whorling. (see website http://forum.europa.eu.int/Public/irc/sanco/Home/main).

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Source: https://www.legislation.gov.uk/eudr/1998/57/annex/II/section/VI/division/A/division/4/division/4.1/division/4.1.2 (the official version)
Page: https://openlegislation.uk/eu-directive-1998-57/annex-II/section-VI/division-A/division-4/division-4.1/division-4.1.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.