2026-05-05T10:20:07Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/408322021-06-23T11:47:37Zcom_10324_1183com_10324_931com_10324_894col_10324_1396

00925njm 22002777a 4500 dc Blank, Lior author Martín García, Jorge author Bezos García, Diana author Vettraino, Anna Maria author Krasnov, Helena author Lomba Blanco, José María author Fernández Fernández, María Mercedes author Díez Casero, Julio Javier author 2019 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. Forests, 2019, vol. 10, n. 4. 16 p. 1999-4907 http://uvadoc.uva.es/handle/10324/40832 10.3390/f10040305 Factors Affecting the Distribution of Pine Pitch Canker in Northern Spain