Leaves often turn yellow before they drop because the tree harvests many of the nutrients from the leaves before it sheds them. This past month I began to observe that the leaves on some of my maple ...

Chlorosis, a foliage condition in which the leaf veins remain green but the surrounding blade tissue turns pale green or yellow, is a common occurrence among certain tree species on the Northern ...

Since mid-July, I’ve noticed something strange in several maple trees I’ve driven by: their leaves are starting to show fall color! Sometimes it’s just the tips of the branches turning red or yellow; ...

Why is my maple tree losing lots of leaves now? You said the leaves were still green when they fall, but the stems looked darkened. There could be several reasons for leaf drop, but the most likely ...