What trees are most susceptible?
How do you treat or prevent iron chlorosis?
There are many methods of treating iron chlorosis, with some being more effective than others.
What are the risks?
Although the holes drilled into the tree are relatively small, repeatedly drilling into a tree will cause long-term injury or decay. However, the rewards often outweigh the risks, as a dying tree threatens public safety and will eventually become a financial burden.
In rare cases, too much iron may be delivered into the tree, causing leaves to turn black and drop. This is temporary, and in most cases, new leaves will come in immediately thereafter.
Amy Grewe, Certified Arborist & Co-Owner