Help your tree gain its strength back with these 5.

Apr 12, 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 cause may be the leaf stalk borer or petiole Author: Tom Bruton.

Some trees tend to hang on to a portion of their leaves through the winter, making spring leaf drop perfectly normal.

Sap is vitally important to trees, and they have developed defense mechanisms to stop sap flow when wounded.

We usually think of fall as the season for shedding, but there are a few tree species that go against the grain. But if you don’t have a tree that naturally loses its leaves in spring, your tree could have an infection.