The UK’s first national collection of tree seeds has been established, which scientists say is crucial as a growing array of pests threaten native species, as reported by BBC News, Science and Environment website. Co-ordinated by Kew’s Millennium Seed Bank, it aims to safeguard the genetic diversity of the UK’s tree flora. The scheme will initially target 50 native species, including the common ash, which is under threat across Europe from ash dieback.