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2 messages
06/11/2012 at 19:30

http://s4.gardenersworld.com/uploads/images/original/15536.jpg?width=346&height=350&mode=max

 

Hi,

Could anybody tell me what problem on this birch tree? Thanks. Chris

 

http://s3.gardenersworld.com/uploads/images/original/15535.jpg?width=350

 

 

06/11/2012 at 22:50

The black mass on the tree in the lower picture looks like canker. I think cankers are due to a fungal infection and they have to be cut out and disinfected, but it's not something I've ever done. I hope someone more expert than me answers.

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