• Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Crab apple tree with multiple issues - OOze, lumps, soot, bark... Help

 
Ed Johnson
Posts: 85
Location: Durham region - Ontario, Canada - Zone 5
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hey,

Need some advice with an older crab apple that hasn't been cared for in a long time, by the looks of it.

The tree is covered in what I thought was scale but seems to be something else now that I have a hi-res pic. I did see major aphid issues last summer. Thoughts?

There's clear, and orange ooze coming out of random spots in the bark. Could be cytospora or borer holes, not sure at all.

A number of the crotches have what looks like black soot lumps on them. Looks like sooty mold fungus, the aphids probably had a major contributor to this problem.
bumps.jpg
[Thumbnail for bumps.jpg]
Crazy bumps of some kind. Note the holes in them
ooze and bark.jpg
[Thumbnail for ooze and bark.jpg]
Clear and Orange ooze, some bark damage as well.
Sooty.jpg
[Thumbnail for Sooty.jpg]
One of the sooty locations on the tree
 
John Wolfram
Posts: 614
Location: Lafayette, Indiana
17
trees
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
My treatment for just about every tree disease is: Cut out the infected part.

The simplicity is reminiscent of Gary Larson's take on equine medicine:




 
Ed Johnson
Posts: 85
Location: Durham region - Ontario, Canada - Zone 5
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I've had that thought but that means pretty close to the ground...
 
Eric Thompson
Posts: 365
Location: Bothell, WA - USA
10
duck food preservation solar trees
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
The ooze looks like it may be borers - Michael Phillips has a good discussion:


The bumps I haven't seen before - kind of reminds me of sapsucker damage, but seems too random.

If growth is good. I would try to encourage it and maybe spray compost tea a bit more..
 
Ed Johnson
Posts: 85
Location: Durham region - Ontario, Canada - Zone 5
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Thanks guys
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic