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The leaves on our maple tree get little spikes on the top of it and then dry up and fall off. Can you tell me the problem and how we may solve it?

Answer(s)

A

I believe these are called Maple Spindle Galls, caused by a mite, they 
are seldom a threat to the tree but have them send a sample to the 
Utah Plant Pest Diagnostic Laboratory;  Ryan Davis would be the guy to 
ask more about this arthropod problem......it's not a pathogenic 
disease.  Hope that helps.

Posted on 4 Jun 2009

Kent Evans
Plant Pathologist

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