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European Journal of Forest Research

, Volume 132, Issue 3, pp 411–432 | Cite as

Decline of Mediterranean oak trees and its association with Phytophthora cinnamomi: a review

  • Constança de Sampaio e Paiva Camilo-Alves
  • Maria Ivone Esteves da Clara
  • Nuno Manuel Cabral de Almeida Ribeiro
Review

Abstract

Mortality events in cork and holm oaks have occurred in the Mediterranean basin since the beginning of the XX century, but severity of decline increased during the 1980s. By that time, the exotic soil borne pathogen Phytophthora cinnamomi was often recovered from declining stands and since then it has been considered the main factor associated with decline. This work analyses data concerning P. cinnamomi surveys in cork and holm oaks trees, pathogenicity tests carried out in controlled experiments, studies about the influence of site characteristics in tree decline and approaches to control the disease. Results of field surveys showed that the pathogen is widespread and pathogenicity tests suggested that host susceptibility to the pathogen is moderate when seedlings are in appropriate watering conditions, particularly cork oaks. Occurrence of decline is also associated with soil characteristics that interfere with root expansion and water retention. We assessed the relative importance of each factor involved in decline and revised the role of P. cinnamomi in cork and holm oak decline.

Keywords

Leaf Water Potential Root Pruning Sweet Chestnut Tree Decline Crown Defoliation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

We thank Margarida Vaz for the draft review. Constança Camilo Alves is a recipient of PhD fellowship from Fundação para a Ciência e a Tecnologia—FCT (SFRH/BD/46516/2008).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Constança de Sampaio e Paiva Camilo-Alves
    • 1
  • Maria Ivone Esteves da Clara
    • 1
  • Nuno Manuel Cabral de Almeida Ribeiro
    • 1
  1. 1.Departamento de Fitotecnia, Instituto de Ciências Agrárias e Ambientais MediterrânicasUniversidade de ÉvoraÉvoraPortugal

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