First impressions reveal that this tree has almost a surreal quality to it, a tree that seems to bleed bright red when its ...

What a cold week it has been! While I may not be the biggest fan of how cold it has been, a little bit of consistency has ...

MADISON – For more than a century, biologists have been working to assign plants, animals and microbes their respective places on the tree of life. More recently, by comparing DNA sequences from a few ...

When arborists evaluate trees, whether it is a few trees on a home ground or many on a large commercial site, it is critical to note health condition. We commonly score the health factor with a range ...

Low-cost “tree fitbits” can pinpoint the precise timing of tree activities, like spring bloom or autumn leaf change, according to a new CU Boulder study. Researchers outfitted two East Boulder ash ...

I recently participated in the Minnesota Shade Tree Short Course, which is a two-day professional development conference for tree care professionals sponsored by the University of Minnesota. More than ...

When ash trees started to be removed in St. Paul, Mary Heskel began to wonder. The Macalester College biology professor knew, of course, that the trees — one of the most widely planted in the city — ...