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8-Aug-2007
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#1 |
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Neophyte
Join Date: May-2006
Location: Woodbridge, VA
Country: USA
Posts: 26
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Cankers on Maples
Somebody tell me what this is and how to stop it!! The infected tree is not a bonsai but I have various maple bonsai training trees in the vecinity and would not like the infection to spread to them. As seen on the pix, a long canker-like area is attacking the branches of this red maple (Blood red). The canker spreads upwards towards the tip of the branch and kills it by drying it. The canker splits the bark and dries it from within. Also, the lower trunk is showing signs of dryness and chipping. What is this? How can I treat it? It spread to one of my other maples (green maple) and I had to remove the branch completely.
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"Beware of the beast of man, 'cuase he's the devil's paw." -- Planet of the Apes |
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8-Aug-2007
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#2 |
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Student of Life
 
Join Date: Mar-2006
Location: Castroville,Texas
Country: USA
USDA Zone: 8b-9a
AHS Heat Zone: 10
Posts: 1,560
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Have you checked for borers?
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....MOM.... Student of Life Student of Nature http://gongshi.freeforums.org/index.php http://bonsaivaultforum.freeforums.org/portal.php |
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8-Aug-2007
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#3 |
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Neophyte
Join Date: May-2006
Location: Woodbridge, VA
Country: USA
Posts: 26
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No borers Irene. No sap either like some types of cankers that attack Maples.
__________________
"Beware of the beast of man, 'cuase he's the devil's paw." -- Planet of the Apes |
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8-Aug-2007
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#4 |
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Student of Life
Join Date: Mar-2006
Location: Castroville,Texas
Country: USA
USDA Zone: 8b-9a
AHS Heat Zone: 10
Posts: 1,560
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What side of the tree is this first noticed on? IE: Northside,southwest side,etc.
Irene
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....MOM.... Student of Life Student of Nature http://gongshi.freeforums.org/index.php http://bonsaivaultforum.freeforums.org/portal.php |
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9-Aug-2007
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#5 |
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Neophyte
Join Date: May-2006
Location: Woodbridge, VA
Country: USA
Posts: 26
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I can't tell. The tree is in a big container and it has been moved many times... lately to keep it away from other trees.
__________________
"Beware of the beast of man, 'cuase he's the devil's paw." -- Planet of the Apes |
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9-Aug-2007
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#7 |
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Student of Life
Join Date: Mar-2006
Location: Castroville,Texas
Country: USA
USDA Zone: 8b-9a
AHS Heat Zone: 10
Posts: 1,560
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If the canker gets to other trees you need to take major action and destroy the original plant. What Ortho recommends is removing all damaged limbs and cutting it all out. Avoid further injury to the tree and get it back to a healthy level.
Irene
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....MOM.... Student of Life Student of Nature http://gongshi.freeforums.org/index.php http://bonsaivaultforum.freeforums.org/portal.php |
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