Maple blackening

[Daluke]

Hey guys.

Any idea what this blackening is on the trunk of my maple?

I’ve only recently noticed it.

 

[Mellow Mullet]

I hope it is not this, killed several of my maples in a couple of months, here's and article on my blog:

http://www.heartofdixiebonsai.com/c...9-blog-post/33-a-is-for-anthracose?Itemid=101

 

[bonsaidave]

article on my blog:
http://www.heartofdixiebonsai.com/c...9-blog-post/33-a-is-for-anthracose?Itemid=101

Thanks for the article. Good info.

 

[AlainK]

To me, it's not that serious. If you can spray a copper-based solution and put the tree in shaded sun, it should be all right.