A girdling root is one that circles the base of a tree at or just below the surface. Girdling roots can also girdle other roots but without harm. The most commonly affected species are maples, lindens ...

It may be cold, but spring is just over the horizon. You may have gardening questions. For answers, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension ...

The fall foliage season is a bit ahead of schedule this year — but that's not why maple trees all over the Twin Cities have been turning color and dropping leaves, weeks before official autumn. It's a ...

Spend some time walking around in a forest and odds are good that you would see the root flares of most of the trees growing there. It is natural to find tree root flares in nature but not so much in ...

The branches on one side of my sugar maple have been dying this summer. I found insects on the leaves of the tree last week and wonder if they are killing the branches. How should I treat my tree? It ...

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We’re well into gardening season and you may have some questions. For answers, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension Service. OSU Extension ...

I would hate it if someone made me wear a turtleneck sweater (remember that 70s fad, boomer friends?) all summer long. Well, it appears that many people in our region do that to our young trees with ...

The center of a tree or shrub stem (from roots to trunk, branches, and twigs) is woody, composed of xylem cells that conduct water from the roots to the upper parts of the tree. That woody section is ...