Black discoloring

arborworks1

arborworks1

Treehouser
Joined
Oct 17, 2006
Messages
2,754
Location
hartsville, sc
Can anyone eloborate on why tree bark discolors along city streets.

Bark and branches are turning black on willow oaks around major streets.
 
Is it on a particular side of the trees? Always toward the street? north? sticky? wash off with water? in the bark? young, old or both?

This could be fun figuring out!
 
If it is turning black then it is not a black discoloration, rather a black coloration.:P
Probably mold/mildew forming in bug doo.
 
  • Thread Starter Thread Starter
  • #7
I'll get some pictures tomorrow, young trees under 25 years mostly.

The trees are all street side on heavy traveled roads.
 
Leaning towards soot.. And add road dirt.. Asphalt and rubber dust...
Can you magnify it for your self to see if the contaminate is starting to mold?
Is there black on the leaves also? Or just the bark?
 
Could be hypoxelon if trees are injured or dieing on that side.
 
You must log in or register to reply here.

Similar threads

Treeaddict
Black oak problems ?
Replies
8
Views
508
flushcut
flushcut
cory
Drought observations
2
Replies
33
Views
2K
Altissimus
Altissimus
Mesquite
Do you know what pest does this?
Replies
16
Views
707
Mesquite
Mesquite
Treeaddict
Which is most difficult-Trimming or removing
Replies
15
Views
885
CurSedVoyce
CurSedVoyce
T
Maasdam rigging on the tree end
2
Replies
25
Views
1K
Kaveman
Kaveman
Back
Top