Witches broom in old Scots pine
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Some fungi are very poisonous so a mistaken ID could have serious consequences.
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I'm not sure about there being a "witch's broom". Perhaps this is a bird nest?
Now I've got my glasses on, the surrounding branches look too thin to support a nest of that size. There is a witch's broom mentioned in Scots Pine in Redfern and Stacey - cause unknown and apparently restricted to northern Scotland and E England.
I'm pretty sure it's not a bird's nest. It has been there for years. (Unless we have weaver birds in Scotland!) There is one in a beech tree as well so perhaps this area suits the fungus?
There more commom on birch and ash in my area which is Northumberland and we call them whitches Broom too. It is caused by a virus.There is a large section about them in a Tree book I have but I cannot find the book at the moment,they look like huge balls in some trees
Thanks. We have several growing on birch trees but I've never seen one on another pine. Moyna
Lat/Lng: 56.1479, -3.6453
OS grid ref: NS978962