BRYONET: Mosses and lichens on roofs

BRYONET

Please answer to bryonet with a copy to <juha-matti.vahatalo@helsinki.fi>

Hello

Good Bryonetters

I'am looking for some practical information about mosses and lichens
on roofs and other man-made surfaces for my master's thesis in
Helsinki university.

Is there any environmentally safe way to control the gowth of mosses
and lichens? Have you used any herbisides against mosses or lichens
and how did they work? Any new (radical) ideas about minimalizing moss
growth?

Best wishes,

Juha-Matti Vahatalo
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