Rhabdocline weirii is a fungal

plant pathogen Plant pathology (also phytopathology) is the scientific study of diseases in plants caused by pathogens (infectious organisms) and environmental conditions (physiological factors). Organisms that cause infectious disease include fungi, oomy ...

. The pathogen, along with ''

Rhabdocline pseudotsugae ''Rhabdocline pseudotsugae'' is a fungal plant pathogen. The pathogen, along with '' Rhabdocline weirii'' causes Rhabdocline needlecast; ''R. weirii'' only affects Douglas-fir trees. The disease causes the needles of the tree to discolor and even ...

'', causes Rhabdocline needlecast; ''R. weirii'' only affects

Douglas-fir The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three ...

trees.How To Identify and Control Rhabdocline and Swiss Needlecasts of Douglas-Fir
" North Central Forest Experiment Station ''United States Forest Service'', 1983. Retrieved 7 September 2007. The disease causes the needles of the tree to discolor and eventually fall from the tree. The pathogen often makes Douglas-fir trees unsalable as Christmas trees and affects the Christmas tree farming industry.Rhabodocline Needlecast (''Rhabdocline weirii'')
" Department of Plant Pathology, ''Cornell University''. Retrieved 7 September 2007.

References

External links

Index Fungorum

USDA ARS Fungal Database
Fungal tree pathogens and diseases Helotiales Fungus species {{fungus-tree-disease-stub