Hello Emma,

Honey locust, (Gleditsia triacanthos f. inermis) is a popular tree that is tolerant of a wide range of soils but also is susceptible to attack by insects and diseases. Read more here: https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=245902&isprofile=0&bt=5

Usually, when there is a pile of sawdust at the base of a tree, it indicates that carpenter ants are at work. Carpenter ants usually nest in older, hollow trees or in dead limbs of older trees. They don’t eat the wood, but while building a nest, they dig into soft decaying wood and drop the shavings at the bottom of the tree. They don’t necessarily kill the tree but their presence may indicate that there is some decay present. Even though from a distance the tree would appear to be quite healthy, it needs a closer inspection.

The Plant and Pest Diagnostic Lab at MSU Extension may be able to provide a more in-depth analysis. For information on how to submit your pictures, go to: https://www.canr.msu.edu/pestid/

A certified arborist will be able to assess the tree. To find an arborist near you, go to www.treesaregood.org, the website of the International Society of Arboriculture to find a certified arborist in your area.

Thank you for contacting Ask Extension.