The world of tree pests and diseases is a vexing, often confusing realm for those of us living in the urban forest. This article will help you know when your tree is in trouble, where to go for help, and what kind of information to convey to the expert s. Even some strange discolorations and odd shapes are completely natural. The eastern white pine, though an evergreen, regularly loses half its needles each year. Yellow leaves on deciduous trees are often an indication of a problem, but some tree species, honeylocust and some junipers for example, exhibit yellow leaves as part of their natural life cycle.
Many trees develop discoloration or furrowing on their bark that is also completely natural.
Take a few moments at your local library to get acquainted with your particular tree. And while you're at it, make a note of what the tree's normal requirements are for shade, water, and soil. One or all of these conditions may be unsuitable for your tree, and may be causing its ailing appearance. Some of the signs that your tree is under attack by the dark side of Mother Nature are obvious. Leaves and twigs may be visibly chewed.