This Directive concerns the measures to be taken within the Member States against Ralstonia solanacearum (Smith) Yabuuchi et al., previously known as Pseudomonas solanacearum (Smith) Smith, in order to, with respect to the host plants of the organism listed in Annex I: (a) locate it and determine its distribution; (b) prevent its occurrence and spread; and (c) if found, to prevent its spread and to control it with the aim of eradication. Member States shall conduct annual systematic official sur