Phytophthora ×alni (Brasier & S.A. Kirk) Husson, Ioos & Marçais (Husson et al. 2015)
Alder dieback, alder decline
First identified in Europe (Aguayo et al. 2013)
European introductions occurred through infected nursery stock (Adams et al. 2008)
Infects and kills alder trees (trees of the genus Alnus) (Gibbs et al. 1999)
Not currently established
Distribution / Maps / Survey Status
The section below contains highly relevant resources for this species, organized by source.
Adams, G.C., M. Catal, L. Trummer, E.M. Hansen, P. Reeser, and J.J. Worrall. 2008. Phytophthora alni subsp. uniformis found in Alaska beneath thinleaf alders. Plant Health Progress.
Aguayo, J., G.C. Adams, F. Halkett, M. Catal, C. Husson, Z.A. Nagy, E.M. Hansen, B. Marcais, and P. Frey. 2013. Strong genetic differentiation between North American and European populations of Phytophthora alni subsp. uniformis. Phytopathology 103(2):190-199.
Gibbs, J.N., M.A. Lipscombe and A.J. Peace. 1999. The impact of Phytophthora disease on riparian populations of common alder (Alnus glutinosa) in Southern Britain. European Journal of Forestry 29(1):1-88.
Husson, C., et al. 2015. Evidence for homoploid speciation in Phytophthora alni supports taxonomic reclassification in this species complex. Fungal Genetics and Biology 77:12-21.