Every year I teach several winter-tree identification classes. Even though they are always held outdoors no matter how cold it is, student evaluations indicate such classes are generally fun. Showing ...

Unless you are intent on making your own maple syrup, you probably haven't given tree sap much thought. So, let's take a deeper dive into a tree's 'blood' or sap and the normal flow in the fall for ...

Just as blood moves important stuff around the human body, sugary sap moves important things around a tree. My friend Nadia Valverdi told me all about it. She’s a researcher at Washington State ...

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Answer: This is turning out to be another one of those common questions that come in from all parts of the state. In the past two weeks, I’ve gotten photos of orange or red sap oozing from plum trees ...

HAMLIN TOWNSHIP, MI – Sugar maple. Red maple. Silver maple. What’s the difference? Those three maple species are part of the “tree identification pathway” at Ludington State Park, near Ludington. This ...

Tree sap is the sticky substance you sometimes see oozing out of tree trunks. Pure maple syrup is the most widely known edible sap product, derived from the sap of the maple tree, but there are many ...