Susceptibility of common tree species in Sweden to Phytophthora cactorum,P.ￂ cambivora and P.ￂ plurivora

In Sweden, invasive Phytophthora pathogens have been recognized as a growing threat to urban and production forests, calling for an urgent update of regeneration strategies for infested areas. Stem inoculation tests were performed to test the relative susceptibility of common conifer and broadleaved...

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Bibliographic Details
Published in:Forest pathology = Journal de pathologie forestière = Zeitschrift für Forstpathologie 2017-06, Vol.47 (3)
Main Authors: Cleary, M R, Blomquist, M, Vetukuri, RR, Bohlenius, H, Witzell, J
Format: Article
Language:English
Subjects:
Betula pendula
Fagus sylvatica
Inoculation
Larix decidua
Lesions
Pathogens
Phytophthora
Phytophthora cactorum
Phytophthora cambivora
Phytophthora plurivora
Picea abies
Pine trees
Pinus sylvestris
Populus trichocarpa
Quercus robur
Species
Tilia cordata
Trees
Urban regeneration
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Summary:In Sweden, invasive Phytophthora pathogens have been recognized as a growing threat to urban and production forests, calling for an urgent update of regeneration strategies for infested areas. Stem inoculation tests were performed to test the relative susceptibility of common conifer and broadleaved tree species Pinus sylvestris,Picea abies,Larix x eurolepis,Betula pendula,Quercus robur,Fagus sylvatica,Populus trichocarpa and Tilia cordata to the root pathogens Phytophthora cactorum,P. cambivora and P. plurivora commonly isolated from Swedish soils. Results indicate that all the species tested were susceptible and formed lesions following stem inoculation with all three Phytophthora species, but to varying degrees. Of particular interest are the high levels of susceptibility in P. trichocarpa to all three Phytophthora species compared to other tested tree species.
ISSN:1439-0329
DOI:10.1111/efp.12329