Root and aerial infections of Chamaecyparis lawsoniana by Phytophthoralateralis: a new threat for European countries
DOUZON, G.
Direction Régionale de l'Alimentation, de l'Agriculture et de la Forêt du Centre [DRAAF Centre]
< Leer menos
Direction Régionale de l'Alimentation, de l'Agriculture et de la Forêt du Centre [DRAAF Centre]
Idioma
en
Article de revue
Este ítem está publicado en
Forest Pathology. 2011, vol. 41, n° 5, p. 417 - 424
Wiley
Resumen en inglés
Phytophthora lateralis has been isolated from root and collar lesions in Port-Orford Cedar (POC) trees (Chamaecyparis lawsoniana) in northwestern France (Brittany). These trees, planted in hedgerows, displayed symptoms ...Leer más >
Phytophthora lateralis has been isolated from root and collar lesions in Port-Orford Cedar (POC) trees (Chamaecyparis lawsoniana) in northwestern France (Brittany). These trees, planted in hedgerows, displayed symptoms similar to the typical symptoms of POC root disease. Until now, the disease has been found outside of the nurseries only in western North America. Aerial symptoms, not associated with root or collar infections, were also observed, and P. lateralis was isolated from branch lesions. Similar symptoms were previously observed only in one POC root disease site, located in the Pacific coast of Oregon where climatic conditions are similar to those occurring in Brittany. The reported aetiology as well as the morphological characteristics (deciduous sporangia) of P. lateralis suggests that this species could be air-dispersed, as described for P. ramorum, a closely related species. This outbreak of P. lateralis in Brittany in farming landscapes associated with the aerial spread of this pathogen represents a new threat for European countries.< Leer menos
Palabras clave
PACIFIC YEW
Palabras clave en inglés
PORT-ORFORD-CEDAR
PATHOGEN
RAMORUM
Orígen
Importado de HalCentros de investigación