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Global threats from Phytophthora spp.; understanding drivers of emergence and opportunities for mitigation through nursery best practice - Phyto-threats

Led by Dr Sarah Greene, Forest Research

Some of the greatest threats to our nation’s trees result from the introduction and spread of exotic pests and pathogens through plant imports and other infested material. Species of Phytophthora are particularly destructive plant pathogens worldwide, causing damage not only to forest and amenity trees but also to shrubs and important food and fibre crops. Over the past 13 years, five new species of pathogenic Phytophthora (Phytophthora ramorum, P. kernoviae, P. lateralis, P. austrocedri and P. pseudosyringae)have been detected in Britain, all capable of causing damage to trees across a range of different environments. In all cases, imported planting material has been either confirmed or strongly implicated as the most likely route of introduction.

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http://www.forestry.gov.uk/fr/phytothreats

This project is in partnership with Animal and Plant Health Agency, Centre for Ecology & Hydrology, Institute of Evolutionary Biology (University of Edinburgh), Science and Advice for Scottish Agriculture, The James Hutton Institute, University of Worcester (project participants).

Specific objectives to address the risks to UK tree species from Phytophthora introduction and spread by:

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