This Supplementary Report on co-existence of genetically modified crops with conventional and organic crops comprises an update of “the 2003 Report” authored by the same expert group.

The primary conclusions of the 2003 Report are unchanged, i.e. that co-existence between GM crops, conventional and organic crops is possible for the vast majority of crops under the given assumptions and with the suggested measures. However, the Supplementary Report only evaluates the co-existence for production crops since threshold values for adventitious GM presence in seed remain to be decided at the EU level.

For maize, beet and potatoes, the Working Group proposes reduced separation distances as compared to the 2003 Report, and for a range of other crops the Working Group has made minor adjustments. For forage and amenity grasses and for grassland legumes the Working Group still fi nds the knowledge basis insuffi cient for establishing measures to ensure co-existence.

Compared to the 2003 Report, separate measures have in general not been proposed for conventional and organic crops keeping in line with the EU Commission’s guidelines on co-existence.

The Working Group recommends that a monitoring, research and development programme addressing co-existence under Danish fi eld conditions should be initiated in order to maintain and further develop the national scientifi c competence within the fi eld of co-existence.

DJF Plant Science No. 131, august 2007 can be requested from Else Høgh, telephone 45 8999 1028.