What is on my tree? Planted 3 years ago. Tree is a Hornbeam.

Posts

• Helix Posts: 631

  July 2019 edited July 2019

  I can see you have a liverwort growing on it, but photo comes out very dark on my screen so can’t quite see if the round shapes are fruiting bodies of the liverwort or something else. 

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• carolecrouch Posts: 4

  July 2019

  here's another picture - different area of tree - the spheres are about the size of the ball in a ballpoint pen nib ... 
  

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• BobTheGardener Posts: 11,385

  July 2019 edited July 2019

  Judging by the positioning, I suspect those are either young woolly aphids (which are black until they cover themselves with white 'wax'), or eggs of the same, assuming they rub-off easily.  The green crusty-looking stuff in the first photo is just lichen and is harmless.
  

  A trowel in the hand is worth a thousand lost under a bush.
  

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