- Fertile plant material has to be transported and stored in closed and clearly labelled repositories at any time outside the release site and laboratory. The label need to distinctively describe the LMO and it needs to be noted that this potato is unfit for consumption. All remaining fertile plant material has to be destroyed by disruption of the germination capacity.
- The release site needs to be labelled with signs indicating “test plant, unfit for consumption”.
- Inspection of the release site has to be accomplished weekly during the experimental release.
- During cultivation of transgenic potatoes, after appearance of the leaves, all potato lines have to be tested for the presence of the nptII gene by PCR-based methods. In the case of nptII detection the respective plants have to be removed from the release site and disposed.
- During the field trial the formation of fertile seeds has to be prohibiten by collecting blossoms and/or berries from the plants.
- If the release site is threatened by flooding sufficient risk measures have to be performed, e.g. through enclosing the release site with sandbags or through removal of the plants to prevent spreading of fertile plant material outside the release site by moving water.
- After completion of the field trial as well as in the following spring time, the first 20 cm of soil of the release site have to be loosening up; the release site must not be plough. Uncovered potatoes need to be collected manually and disposed by disruption of their germination capacity
- After completion of the field trial a monthly inspection of the release site for transgenic potato volunteers, their documentation and removal and disposal has to be accomplished during the growing season. The inspection period has to be extended for another year if potato volunteers were observed. The release site must not be cultivated with plants impairing the detection of transgenic volunteers.