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7.02.09 - Phytophthora diseases on forest trees



7th IUFRO International Workshop on the Genetics of Tree-Parasite Interactions in Forestry Understanding forest tree-antagonistic interactions in a changing world

Pontevedra, Galicia, Spain; NEW DATE: 12-17 September 2022!
Units involved: 7.03.11, 2.02.15, 2.02.20, 7.02.05, 7.02.09, IUFRO Task Force on Forests and Biological Invasions.

Managed and natural forests provide essential ecosystem services worldwide. Due to the free of movement of people and goods across biogeographical zones, tree species are increasingly challenged by emergent invasive biotic threats. We can see large range expansions of pests and diseases, as well assudden shiftsto naïve hostspecies. Moreover, climate change is also increasingabiotic tree stresses, which synergistically interact with tree resistance leading to negative effects on tree survival and forest resilience. Although forest tree species are known to harbour high levels of genetic variation, most remain fairly unstudied, particularly in traits related to host tolerance and resistance to biotic and abiotic stressors.To understand such variations, within the framework of the genetics of tree-antagonist interactions, is necessary to forecast the survival and prevalence of forest populations in a changing environment. This knowledge can also be exploited in breeding programs aiming to improve forest health. The scientific community is pushing for an urgent multidisciplinary and coordinated effort to solve these challenges, making use of current and new knowledge, strategies and technologies. Geneticists, evolutionary biologists, ecologists, phytopathologists, entomologists, plant physiologists, breeders and managers are all involved in this challenge. This workshop will provide the ideal forum for updating knowledge, evidences, solutions and failures between scientific, academic and practical approaches. It is also an opportunity to enhance the dialogue of long experienced expertise with the newgenerations of scientists, which will provide creative and new solutions in the near future.


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Matteo Garbelotto, United States

Thomas Jung, Czech Republic

Andrea Vannini, Italy

State of Knowledge

Knowlegde of the field is summarized in the proceedings of previous meetings of the Units:

  • 2007 MONTEREY, USA
    Proceedings: Goheen, E.M.; Frankel, S.J., tech. coords. 2009.  Phytophthoras in Forests and Natural Ecosystems. Proceedings of the Fourth Meeting of the International Union of Forest Research Organizations (IUFRO) Working Party 07.02.09. August 26-31, 2007, Monterey, CA.  Gen. Tech. Rep. PSW-GTR-221. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station. 334 p.
    Progress in Research on Phytophthora Diseases of Forest Trees, Tree Health Division, Forest Research, Alice Holt Lodge, Farnham, Surrey, GU10 4LH, UK
    Phytophthora Diseases of Forest Trees. Proceedings of the "First International Meeting on Phytophthora's in Forest and Wildland Ecosystems" (Hansen, EM and Sutton, W, eds) 30th Aug. - 3rd Sept. 1999, Grants Pass, Oregon. Proceedings