What is killing the locust trees?
Bark beetles and roundheaded borers may bore into black locust tree branches. Bark beetles can cause the outer tips of branches to die, which is a condition called “flagging.” They mine into the branches up to 6 inches from the tip, causing the end of the branch to die. The dying branches should be removed and burned.
What is wrong with my locust tree?
Cankers and root collar rot are the major diseases of honeylocusts because they can girdle the stem and kill the tree. Canker disease symptoms include sunken, dead areas of bark; dieback; reduced foliage; yellow foliage; premature fall coloration; and early leaf drop.
Do locusts carry diseases?
Locusts do not attack people or animals. There is no evidence that suggests that locusts carry diseases that could harm humans.
Why is my locust tree losing leaves?
Hot, Dry WeatherHigh temperatures and low moisture conditions may cause locust leaves to turn yellow and drop. Trees naturally respond to limited water by dropping leaves to conserve water. This is enhanced if the hot, dry weather was preceded by a cool, wet spring or late cold spells.