|MFD (Multilingual Forestry Dictionary)|
|About the MFD|
|a place to look for forestry terms in multiple languages created by the Multilingual Forest Dictionary community|
|Creative Commons Attribution 4.0 license.|
Disease caused by a fungus that is parasitic on higher plants and may go through five different developmental stages, usually involving hosts. Following infection, orange pustules appear, possibly followed by premature shedding of foliage, witches' brooms or cankers.