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Rust on Ransoms

Posted: Thu May 24, 2018 1:30 pm
by adampembs
I see there are a few contenders here. What do you think it is? I need a new scope!

Re: Rust on Ransoms

Posted: Thu May 24, 2018 7:13 pm
by Chris Yeates
Hi Adam
not the greatest of shots but one can clearly see the white margins of "aecidioid" aecia. This means it has to be Puccinia sessilis (alternating with the grass Phalaris arundinacea).
See viewtopic.php?f=9&t=77&hilit=caeomoid for notes on the other Allium ursinum rusts.

There is excellent background material in this downloadable, not-too-technical, paper here: http://www.cfs.nrcan.gc.ca/bookstore_pdfs/19281.pdf

HTH
Chris

Re: Rust on Ransoms

Posted: Thu May 24, 2018 9:44 pm
by adampembs
Thanks, Chris. :D