That's probably from a physical injury not a disease canker. Is so it will not infect anything else.

Looks exactly like what my ducks use to do to the canes before I had to fence them out of the blueberry beds. I agree with Fruitnut that it looks to be a mechanical injury.

Good grief! Don't look that up in a dictionary of British English ;-)

foolishpleasure,

I watch a lot of British T.V. and I was a little worried what I would find on you picture! (but curious just the same)

Bloody wankers!

Lol;) you said Wanker!!!!!

DAM IT I MEANT CANKER JUST PUSHED THE W INSTEAD OF C. AM I GOING TO GO TO JAIL FOR THAT. I WILL ASK THE JUDGE FOR MERCY.

I am sure the magistrate will let you off. Mitigating circumstances - posting at the crack of dawn in emotional distress over your blueberry. Also service to the community - providing a smile this side of the water. Sorry - slightly smutty sense of humour ;-)

Hope your blueberry lives.

foolishpleasure,

I guess we all need a little humor right now, and you have elected yourself, admittedly accidentally, to be the brunt of:-)