This video ( Crimson Norway Maple) shows a young Crimson Norway Maple and it has recently developed an interesting canker disease. Norway Maples suffer from a number of canker diseases including Cytospora, Eutypella, and Nectria. These diseases can cause trunk distortion and decay. They don’t cause immediate death of the tree as trees can contain the decay, but the condition can contribute to decline or eventually cause the tree to fail. Usually a tree will get a canker disease after a period of drought which stresses the tree making it susceptible. Diseased and weak branches can also open the door to diseases. To keep your trees happy and healthy Shadywood Tree experts recommends- • Routine trimming to remove dead, diseased branches, and promote good branch structure. • Water your tree often in summer, one hour or longer with a lawn sprinkler when we do not receive one inch of rain per week. • Annual fertilization of a slow release fertilizer to promote health. By David Anderson ISA #MN4444A

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