Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/43705
Title: Factors affecting the distribution of pine pitch canker in Northern Spain
Authors: Blank, Lior
Martín-García, Jorge
Bezos, Diana
Vettraino, Anna Maria 
Krasnov, Helena
Lomba, José M.
Fernández, Mercedes
Diez, Julio J.
Journal: FORESTS 
Issue Date: 2019
Abstract: 
Fusarium circinatum is the causal agent of pine pitch canker disease (PPC), affecting Pinus species and other conifers (i.e., Pseudotsuga menziesii (Mirb.) Franco.), forming resinous cankers on the main stem and branches and causing dieback in the terminal guide. This pathogen is spreading worldwide, causing economic losses by converting plantations into standing timber without any potential for future production. The disease was recently detected in Northern Spain in plantations of Pinus radiata and forest nurseries. The aim of the work reported here was to study the role of climatic and topographic variables, soil properties, and stand characteristics on PPC. For this purpose, we surveyed 50 pine stands in Cantabria and quantified the percentage of trees showing three symptoms in each stand: canker, defoliation, and dieback. We investigated the predictive power of 30 variables using generalized linear models and hierarchical partitioning. Both approaches yielded similar results. We found that the three symptoms correlated with different explanatory variables. In addition, more trees exhibited cankers in the proximity of the coast and the Basque Country. Additionally, our results showed that low canopy cover is related to a high level of the dieback symptom. Overall, this study highlights the important variables affecting the distribution of PPC in Cantabria.
URI: http://hdl.handle.net/2067/43705
ISSN: 1999-4907
DOI: 10.3390/f10040305
Rights: Attribution-NonCommercial-NoDerivs 3.0 United States
Appears in Collections:A1. Articolo in rivista

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