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When we think of a tree, we usually picture a single big trunk that divides into branches overhead. Yet sometimes trees may sprout small stems sprouting from the base of the trunk, down by the roots.

Q: I recently noticed a black, tar-like patch on my tree trunk, though it’s not tacky like actual tar. Are these insect eggs? Dried sap? Do I try to scrape it off? The tree has lichen but I don’t ...

An arborist can diagnose disease and pest problems, schedule seasonal treatments for trees, and selectively prune your trees ...

Q: We have two maple trees in the backyard with roots running on the surface. What can we do with this issue? — Jim E. A: A tree’s root system is much shallower than we often consider. Tree roots ...