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Annals of Forest Science

, Volume 72, Issue 2, pp 169–181 | Cite as

Modelling the potential spread of Fusarium circinatum, the causal agent of pitch canker in Europe

  • Timo Möykkynen
  • Paolo Capretti
  • Timo Pukkala
Original Paper

Abstract

Context

Fusarium circinatum is an invasive forest pathogen causing pitch canker in Europe. It attacks several pine species and Douglas firs. It has already invaded a few places in the Iberian Peninsula and Italy.

Aims

The aim of this study is to develop a model for simulating the spread of F. circinatum once it enters Europe via various entry points such as harbours, border stations and from nurseries containing tree seedlings.

Methods

The spread rate was modelled as a function of the spatial distribution of pine and Douglas firs, climatic suitability of different locations to F. circinatum, seedling transportation, insect-mediated transfer from tree to tree, and spread of airborne spores.

Results

The fungus is likely to spread to the pine forests of northern Spain (Galicia, Cantabria and Basque Country) and southwest France (Aquitania). There will be some spread towards northern Portugal and southern Italy. Unless there are new arrivals to Central and North Europe, the fungus will not spread to the more northern parts of Europe. Due to the short dispersal distance of spores, F. circinatum cannot easily cross spatial discontinuities in the distribution of host species.

Conclusion

F. circinatum is a serious potential invasive forest pathogen in Europe. New admittances of the spores from international trading should be controlled.

Keywords

Invasive pathogen Pine Douglas fir Spatio-temporal model Spread model Forest pathology 

Notes

Acknowledgments

This study was performed with funding from the EU-funded project ISEFOR (Increasing Sustainability of European Forests: modelling for security against invasive pests and pathogens under climate change).

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Copyright information

© INRA and Springer-Verlag France 2014

Authors and Affiliations

  1. 1.University of Eastern FinlandJoensuuFinland
  2. 2.DISPAA Section of Plant Pathology and EntomologyUniversity of FirenzeFlorenceItaly

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