Gossamer threads on mature birch

Gossamer threads on mature birch

Observation - Gossamer threads on mature birch - UK and Ireland. Description: Cascading threads. Mostly individual threads are shorter lengths with a fuzzy outline. On shaded s

Cascading threads. Mostly individual threads are shorter lengths with a fuzzy outline. On shaded side of some but not all mature birches. Not observed on younger birches or other types of tree. Appears to prefer the craggy indented areas with moss and lichen found on these trees. I don’t know at what time of year it is present, apart from now, as I’ve only just noticed it, and it is only obvious on close inspection, and it may be present at other times and I may just not have seen it until now. It covers considerable areas and I could see it over 20:feet up in the tree.