They may lack the training or experience to handle more than routine pruning and they may not have the diagnostic skills to spot symptoms of uncommon ills. Certified arborists have training and experience in tree care. A consulting arborist such as Snyder gives expert advice but not care. This shadow of responsibility may tempt some homeowners to avoid trees in favor of bluegrass and shrubs. That would be a pity.
Trees are part of nature's air filtering system.
An acre of trees can remove a ton of particulate pollution from the air, Merullo said. This is especially so on hot summer days when their shade is so welcome. And in spring, when their branches fill with flowers to become pastel clouds floating above the lawn. And in autumn when bright fruits hang like glowing lanterns among yellow leaves. And in winter when the scent of pine perfumes the cold air.