Ask a Consulting Arborist Q&A: Tree Health

Q: One-year-old Globe willow's no longer has new leaves. What can I do to save it?

Wednesday, December 30, 2015  

Q: One-year-old globe willow no longer has new leaves. I am watering it twice a week with three gallons of water and fertilizing it once a week, but it's not getting better. What else could I do to save the tree?

A: Globe willows are typically naturally short-lived trees due to being subject to damage by insects and diseases. One of the common diseases that often affects willows is "Cytospora canker." It can affect twigs, branches, and trunks. The area that is affected is usually darkened and may appear sunken. There is no cure for this disease. Control by removing diseased wood, keeping the soil moist, and fertilizing annually in the spring. For replacement, consider consulting with a reputable nursery in your area or with the county extension service.

 

Responder: Robert Hager, RCA #523, San Marcos, TX