01188nas a2200217   4500008004100000022001400041245009500055210006900150260002900219300001400248490000700262520051900269653001600788653001200804653002300816653002300839653001900862653001700881100001700898856005500915       2008                        eng d  a1365-305900aThe biosecurity threat to the UK and global environment from international trade in plants0 abiosecurity threat to the UK and global environment from interna  bBlackwell Publishing Ltd  a792–8080 v573 aNative plant communities, woodlands and landscapes in the UK and across the world are suffering from pathogens introduced by human activities. Many of these pathogens arrive on or with living plants. The potential for damage in the future may be large, but current international regulations aimed at reducing the risks take insufficient account of scientific evidence and, in practice, are often highly inadequate. In this Letter I outline the problems and discuss some possible approaches to reducing the threats.10abiosecurity10aforests10ainvasive pathogens10anatural ecosystems10aPLANT diseases10aplant health1 aBrasier, C M  uhttp://dx.doi.org/10.1111/j.1365-3059.2008.01886.x