Please verify this debate with a friend. Does the Sweet Gum tree weep sap that gets on autos? I say there is no weeping. I consider the Sweet Gum "Nature's Air Conditioning Tree", a cool breeze always, where as an oak has dry hot shade, etc. I've never experienced sap weeping from a Sweet Gum, just gum from the trunk of the tree. Please help, I want to know for sure. Thanks. Sue
Hardiness Zone: 8a
By RaindropFresh from Brandon, MS
My husband is a certified arborist for The Ohio State University- Agricultural Technical Institute (OSU-ATI) and a member of the International Society of Arboriculture , so I posed your question to him. Sweet Gum trees "do not weep sap." However, without seeing your tree, he would have to make an educated guess and say that any type of "sap" that falls onto a car would actually be the result of an insect problem. Aphids leave "honeydew" behind - a clear, sticky mess on leaves and cars. They DO like sweet gum trees!
Here's a good site about aphids:
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