How do I prevent Dutch elm disease?
DetectionInspect the Dutch elm tree periodically for any signs of infection. Signs include wilting in one or more of the upper branches due to fungus. The leaves on the affected branches turn a dull green to brown color and then become brittle. Early infections can be removed by pruning a minimum of 8 to 10 feet below the infected branch. Chronic infections result in the removal of the tree, since the dead wood is a major breeding ground for elm bark beetles. In this case, dispose of the elm tree by chipping, burning or burying it.InsecticideUse chemical insecticides to control the elm bark beetle from feeding on the tree. Spray the chemicals on the crown, bark and base of the tree in early April when the beetles are active.FungicideInject fungicides into the tree to help protect against fungal growth.
