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Question by  dlsim1947 (26)

What can I do if my Autumn Blaze maple tree has black spots on its trunk?

My Autumn Blaze maple tree has black spots on its trunk.

 
+7

Answer by  er (157)

Black spots are indicative of the plant's insufficient space for growth. There may be cement or other flooring blocking its roots. This may also be a sign of fungal infection, in which case fungicide could be used.

 
+7

Answer by  tab65 (456)

An autumn blaze maple tree can get black spots on its trunk if the roots and tree base have outgrown the space. If the tree is in a pot in needs to be planted in the ground to allow more growing room. Also, look for centipeds or catipillars eating the tree.

 
+6

Answer by  123123 (6)

Black spots are indicative of the plant's insufficient space for growth. There may be cement or other flooring blocking its roots. This may also be a sign of fungal infection, in which case fungicide could be used.

 
+5

Answer by  llebo (40)

Black spots are likely related to a fungus. Remove affected leaves, rake up leaves underneath the tree, water only at soil level, and use a commercial fungicide.

 
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