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[ Author(Desc)] Title Type Year
Hamm PB, Hansen EM. Identification of Phytophthora spp. known to attack conifers in the Pacific Northwest. Northwest Sci. 1987 ;61:103-109.
Hamm PB, Hansen EM. Pathogenicity of Phytophthora species to Pacific Northwest conifers. European Journal of Forest Pathology [Internet]. 1982 ;12:167–174. Available from:
Hamm PB, Hansen EM. Phytophthora pseudotsugae, a new species causing root rot of Douglas-fir. Can. J. Bot. [Internet]. 1983 ;61:2626–2631. Available from:
Hansen EM, Streito J-C, Delatour C. First confirmation of Phytophthora lateralis in Europe. Plant Disease [Internet]. 1999 ;83:587-587. Available from:
Hansen EM, Reeser P, Sutton W, Gardner J, Williams N. First Report of Phytophthora pluvialis Causing Needle Loss and Shoot Dieback on Douglas-fir in Oregon and New Zealand. Plant Disease [Internet]. 2015 ;99(5):727 - 727. Available from:
Hansen EM, Hamm PB. Survival of Phytophthora lateralis in infected roots of Port Orford cedar. Plant Disease. 1996 ;80:1075–1078.
Hansen EM, Reeser P, Davidson JM, Garbelotto M, Ivors K, Douhan L, Rizzo DM. Phytophthora nemorosa, a new species causing cankers and leaf blight of forest trees in California and Oregon, U.S.A. Mycotaxon [Internet]. 2003 ;88:129–138. Available from:
Hansen E, Reeser P, Sutton W, Brasier C. Redesignation of Phytophthora taxon Pgchlamydo as Phytophthora chlamydospora sp. nov. North American Fungi [Internet]. 2015 ;10:1–14. Available from:
Hansen E, Delatour C. Phytophthora species in oak forests of north-east France. ANNALS OF FOREST SCIENCE [Internet]. 1999 ;56(7):539 - 547. Available from:
Hansen EM, Roth LF, Hamm PB, Julis. AJ. Survival, spread, and pathogenicity of Phytophthora spp. on Douglas-fir seedlings planted on forest sites. Phytopathology 70: [Internet]. 1980 ;70:422-425. Available from:
Hansen EM. Alien forest pathogens: Phytophthora species are changing world forests. Boreal Env. Res. 2008 ;13:33–41.
Hansen EM, Goheen DJ, Jules ES, Ullian B. Managing Port-Orford-Cedar and the Introduced Pathogen Phytophthora lateralis. Plant Disease [Internet]. 2000 ;84:4-14. Available from:
Hansen EM, Kanaskie A, Prospero S, McWilliams M, Goheen EM, Osterbauer N, Reeser P, Sutton W. Epidemiology of Phytophthora ramorum in Oregon tanoak forests. Canadian Journal of Forest Research [Internet]. Submitted ;38:1133-1143(11). Available from:
Hansen EM, Hamm PB, Roth LF. Testing Port-Orford-cedar for resistance to Phytophthora. Plant Disease. 1989 ;73:791–794.
Hansen EM, Wilcox WF, Reeser PW, Sutton W. Phytophthora rosacearum and P. sansomeana, new species segregated from the Phytophthora megasperma "complex". Mycologia [Internet]. 2009 ;101:129-135. Available from:
Hansen EM, Hamm PB, Julis AJ, Roth LF. Isolation, incidence and management of Phytophthora in forest tree nurseries in the Pacific Northwest [USA]. Plant Disease Reporter. 1979 ;63:607-611.
Hansen EM, Reeser PW, Sutton W. Phytophthora beyond agriculture. Annual Review of Phytopathology [Internet]. 2012 ;50(1):359 - 378. Available from:
Hansen EM, Delatour C. Phytophthora species in oak forests of north-east France. Ann. For. Sci. [Internet]. 1999 ;56:539-547. Available from:
Hansen EM, Parke JL, Sutton W. Susceptibility of Oregon forest trees and shrubs to Phytophthora ramorum: a comparison of artificial inoculation and natural infection. Plant Disease [Internet]. 2005 ;89:63-70. Available from:
Hansen EM, Maxwell DP. Species of the Phytophthora megasperma complex. Mycologia, [Internet]. 1991 ;83:376-381. Available from:
Hansen EM, Brasier CM, Shaw DS, Hamm PB. The taxonomic structure of Phytophthora megasperma: Evidence for emerging biological species groups. Transactions of the British Mycological Society [Internet]. 1986 ;87:557 - 573. Available from:
Hansen EM, Streito J-C, Delatour C. First Confirmation of Phytophthora lateralis in Europe. Plant Disease [Internet]. 1999 ;83(6):587 - 587. Available from:
Haque MMU, Martínez-Álvarez P, Lomba Mé, Martín-García J, Diez JJ. First report of Phytophthora plurivora causing collar rot on common alder in Spain. Plant Disease [Internet]. 2013 ;98(3):425. Available from:
Haque MMU, Martín-García J, Diez JJ. Variation in pathogenicity among the three subspecies of Phytophthora alni on detached leaves, twigs and branches of Alnus glutinosa. Forest Pathology [Internet]. 2015 ;45(6):484–491. Available from:
Hardoim PR, Guerra R, da Costa AMRosa, Serrano MS, Sanchez ME, Coelho AC. Temporal metabolic profiling of the Quercus suber - Phytophthora cinnamomi system by middle-infrared spectroscopy Stenlid J. Forest Pathology [Internet]. 2016 ;46(2):122 - 133. Available from: