Every autumn we revel in the beauty of the fall colors. The mixture of red, purple, orange and yellow is the result of chemical processes that take place in the tree as the seasons change from summer ...

You will find them actively eating the trees' leaves. Spring (Paleacrita vernata) and fall (Alsophila pometaria ... ash, apple, elm, oak, cherry, linden, and others. Cankerworm infestations ...

An emerging invasive insect species has been causing problems with elm trees across the Midwest. According to the Indiana Department of Natural Resources, the invasive elm zigzag sawfly is active ...

The Prospect Park Alliance is cutting down one-third of the trees in the Dog Beach Elm Grove because of Dutch elm disease.