I have a poplar tree in my backyard that is 1 1/2 years old. Over the past year and a half it has done a few funny things. Upon planting it, the leaves went yellow in the summer. I think we were over ...

Sitting under the wide canopy of a tree can cool you off on a hot summer day and even lower home-energy costs. If your landscape is treeless, the sooner a new tree grows a shady canopy, the better. A ...

DULUTH — It’s been said that the true meaning of life is planting a tree "under whose shade you do not expect to sit," a hint, of course, that you’ll likely be dead before the tree gets that tall. But ...

Hybrid poplar tree leaves might contain the ingredients for the biodegradable plastics of the future. Researchers Steven Strauss and Ganti Murthy of Oregon State University are using a grant from the ...

Q: What are these growths or galls on our maple leaves? — Steve R. A: The round, protruding bumplike growths on tree leaves are called galls, and they inspire frequent questions every year. Tree types ...