I’ve lived in Braidwood, IL for 10 years and recently saw a healthy 40-foot elm tree die suddenly. What could cause this, especially with flies and moths covering the tree?
The most common cause of rapid decline in American elm trees is Dutch elm disease. This fungus has killed millions of elms and continues to do so by invading the water-conducting tissue of the tree. The appearance is therefore a sudden wilting and death of branches and then the whole tree.
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