We live in downtown Toronto and have a Pagoda Dogwood in our back yard. It stands 10- 12 feet tall in clayish soil, with a trunk around 4 inches.
This spring it started to sweat from the top and the trunk is dripping wet.
Hello, I found this interesting article about oozing trees. It seems that as pagoda dogwoods have a thin bark, in the spring when there is sap flowing is oozes from weak or injured areas in the trunk and is not a huge problem.
Pagoda dogwoods are beautiful small trees and thankfully have very few problems. Mulching in the spring and fall, applying compost or manure and a gentle pruning to remove deadwood are good practices to help sustain them.
Hope you are enjoying these sunny, spring days.