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Free Images of Trees - Beech Bark Disease
 
Note on large files:  When downloading any full resolution large file, it may appear bigger than your screen.  
Right click on any portion of the image showing and chose "save as". 

 

 

The American Beech tree (Fagus grandifolia)  is being severely affected by a disease known as "Beech Bark Disease".    This is a threat affecting hardwood and mixed forests.

What is Beech Bark Disease?

The disease is caused by a combination of a non-native  insect and a non-native fungus.  It begins when the tiny Beech Scale Insect  (Cryptococcus fagisuga) feeds on the outer bark of a Beech tree.  It is not the insect that kills the tree, but rather the damage caused by the insect to the bark that allows the fungus (Neonectria faginata) to infect the tree.  

The Beech Scale is an insect that came from Europe.  They are soft bodied and wingless 0.5 to 1.0 mm long.  

Photo at right of a Beech Scale Nymph is NOT a FreeTiiuPix image.
Source:  Wikipedia  Public Domain Image

 

The Bark infection typically occurs 2-10 years after the Scale insect arrives.  The Scale insects feed on the tree's sap and open wounds in the bark allowing the fungus to colonize in the bark, cambial layer and sapwood of the tree.

Infected trees have circular or lemon-shaped cankers.  During the fall, the fungal fruiting bodies can be seen on trunks as deep-red spots.  Trees now become susceptible to other wood rot fungi.  They soon become hazardous and may snap during wind storms.

 

Disease Facts:

- Beech Bark Disease attacks mature trees that are over 8 inches in diameter.
- Infected trees have waxy-white patches on their bark, dark cankers, or fuzzy bumps.
- The crowns of trees appear yellow and die back.
- Other signs include a loss of leaves, broken branches and discoloured foliage.
- Healthy Beech trees have smooth grey bark and dark green shiny leaves.

 

 

White wax beech tree bark disease

Beech Bark - 1
After the Scale insects have fed, they develop a white waxy substance clearly seen on this bark.

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Red spots fungus fruiting beech tree disease

Beech Bark - 2
If you zoom this image you can clearly see the red lemon-shaped fruiting fungi.

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 3456 x 4608  -  For the full-size resolution of this image click here.

 

 

Damaged interior of Beech tree from Bark Disease

Beech Bark Disease - 1
Interior of tree rot is evident making tree hazardous & susceptible to breakage.

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Damaged interior of Beech tree from Bark Disease cut stump

Beech Bark Disease - 2
Interior of tree rot is evident making tree hazardous & susceptible to breakage.

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Cut tree damaged by Beech Bark Disease

Beech Bark Disease - 3
Interior of tree rot is evident making tree hazardous & susceptible to breakage.

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Damaged interior of Beech tree from Bark Disease

Beech Bark Disease - 4
Interior of tree rot is evident making tree hazardous & susceptible to breakage.

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Damaged interior of Beech tree from Bark Disease

Beech Bark Disease - 5
Interior of tree rot is evident making tree hazardous & susceptible to breakage.

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Damaged interior of Beech tree from Bark Disease

Beech Bark Disease - 6
Interior of tree rot is evident making tree hazardous & susceptible to breakage.

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

 

Beech Bark Disease cut tree

Beech Bark Disease - 7
Interior of tree rot is evident making tree hazardous & susceptible to breakage.

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

The loss of the majestic beech will affect wildlife since black bear, squirrels, chipmunks, porcupines, white-tailed deer and birds depend upon the nut food source.  The trees are also favoured nesting sites for birds and cavity dwellers.

 

Cut Beech Bark Disease trees at Kilbear Park

Beech Bark Disease - 8
Interior of tree rot is evident making tree hazardous & susceptible to breakage.

Medium - 640 x 480  Right click on above image and chose "save as".

 Large - 4608 x 3456  -  For the full-size resolution of this image click here.

 

All of the above images were taken at Killbear Provincial Park, Ontario, Canada.

 

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If you'd like to drop me a note to let me know if any of these images have been useful, I'd love to hear from you. I'm curious to see if my snapshots have been of benefit to you in some way.  Also, I'd like to hear what kind of images you'd like to see more of. 

 

 

 


 

The Wonder 
of Trees


 

 

 

"Even if I knew 
that tomorrow 
the world 
would go to pieces, 
I would still plant 
my apple tree."

~ Martin Luther ~

 

 

 

 

 

 

 

 

"I think that I 
shall never see
A poem as lovely
as a tree.

A tree whose hungry 
mouth is pressed,
Against the earth's 
sweet flowing breast;

A tree that looks 
at God all day
And lifts her leafy 
arms to pray;

A tree that may 
in Summer wear
A nest of robins
 in her hair;

Upon whose bosom 
snow has lain;
Who intimately 
lives with rain.

Poems are made 
by fools like me,
but only God 
can make a tree."

~ Joyce Kilmer ~
"Trees" 1914

 

 

 

 

 

 

 

 

"The best time
to plant a tree
was 20 years ago.
The next best
time is now."

~ Chinese Proverb ~

 

 

 

 

 

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