Rust fungus on rowans

 
Phoograph by mobile: Kaido Einama
Translation: Liis
 
 
"Today I saw for the first time a kind of orange bodies, with sharp spines, on the undersides of rowan leaves (felt them as well), and there seemed to be a lot of them.“
 
We asked Vello Keppart for information. Vello recommended reading the article by Thea Normet in journal „Eesti Loodus“:
 
Translators note:
A Google search on Gymnosporangium cornutum shows up information in many languages on the mountain ash rust fungus. First published evidence from Estonia is from 1859; it is not believed to harm the host tree to any serious extent.


 

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