Septoria? on Betula

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Septoria? on Betula

Post by adampembs » Fri Jun 12, 2015 11:53 am

Along with some bug!
Looking online I see references to Septoria betulae but this is not listed on the frdbi, and I see no Septoria as species associated with Betula. Any suggestions as to genus or for further examination?

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Chris Yeates
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Re: Septoria? on Betula

Post by Chris Yeates » Fri Jun 12, 2015 7:27 pm

Hi Adam
this may be fungal but it's too early to say; at the moment the black spots seem to just be depressions in the leaf - expect Septoria spp. Ascochyta spp. etc. a month or two later in the season. In any case it would be a microscope job.

"You must know it's right, the spore is on the wind tonight"
Steely Dan - "Rose Darling"

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