Derogations from the establishment of demarcated areas
Article 4
1. By way of derogation from Article 3, the competent authorities may choose not to establish a demarcated area if the following conditions are fulfilled: (a) there is evidence that the specified pest has been introduced into the area with the plants or plant material on which it was found, and those plants were infested before their introduction into the area concerned and no multiplication of the specified pest has occurred or there is evidence that it is an isolated finding, not expected to lead to establishment of the specified pest; (b) it is ascertained that there is no establishment of the specified pest, and the spread and successful breeding of the specified pest is not possible due to its biology, based on the results of a specific investigation and eradication measures taken. 2. Where the competent authority applies the derogation provided for in paragraph 1, it shall: (a) take measures to ensure the prompt eradication of the specified pest and to exclude the risk of its spread; (b) where appropriate, immediately increase the number of traps and the frequency with which the traps are checked in that area; (c) immediately intensify the visual examinations for the presence of adults, combined with branch sampling, or other suitable detection methods, capable to detect the specified pest before its emergence; (d) during at least one life cycle of the specified pest plus one additional year, survey an area with a width of at least 1 km around the infested plants, or the place where the specified pest was found, regularly and intensively during the flying period of the specified pest; (e) investigate the origin of the specified pest by tracing back the plants, wood, bark and other objects associated with the specified pest, and an examination thereof for any sign of infestation, including branch sampling and targeted destructive sampling; (f) raise public awareness of the threat of the specified pest; and (g) take any other measure which may help eradicate the specified pest, taking account of ISPM No 9 ( 5 ) and applying an integrated approach in accordance with the principles set out in ISPM No 14 ( 6 ) .