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Susceptibility of Eucalyptus grandis and Acacia mearnsii seedlings to five Phytophthora species common in South African plantations

Bose, T., Roux, J., Burgess, T.I.ORCID: 0000-0002-7962-219X, Shaw, C., Wingfield, M.J. and Fossdal, C.G. (2019) Susceptibility of Eucalyptus grandis and Acacia mearnsii seedlings to five Phytophthora species common in South African plantations. Forest Pathology . Early View.

Link to Published Version: https://doi.org/10.1111/efp.12560
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Abstract

Eucalyptus grandis and its hybrids, as well as Acacia mearnsii, are important non‐native trees commonly propagated for forestry purposes in South Africa. In this study, we conducted pathogenicity trials to assess the relative importance of five commonly isolated Phytophthora spp. (Phytophthora alticola, P. cinnamomi, P. frigida, P. multivora and P. nicotianae) from the plantation environment on E. grandis and A. mearnsii seedlings. Overall E. grandis was more susceptible to the tested Phytophthora spp. than A. mearnsii. Phytophthora cinnamomi was the only pathogen that had a significant negative effect on both the host tree species, leading to a reduction in root and shoot weight as well as to death in the case of E. grandis. Phytophthora alticola and P. nicotianae exclusively affected E. grandis and A. mearnsii, respectively. This study updated the current knowledge on the pathogenicity of Phytophthora spp. on two important non‐native commercially propagated tree species from South Africa.

Item Type: Journal Article
Murdoch Affiliation: Environmental and Conservation Sciences
Centre for Phytophthora Science and Management
Publisher: Wiley-Blackwell
Copyright: © 2019 Blackwell Verlag GmbH
URI: http://researchrepository.murdoch.edu.au/id/eprint/51827
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