Our arborist advice section is the most extensive expert collection of tree, lawn and landscape care tips and educational resources that you will find anywhere.
Follow this summer checklist to keep your trees and landscape healthy by identifying potential issues.
Fire blight is a leaf disease that attacks a variety of fruit trees and rosaceous ornamental trees.
Common throughout the U.S. and Canada, these caterpillars feed on over 100 species of forest, fruit and shade trees. Some of the favored hosts include wild cherry, pecan, black walnut, persimmon, mulberry and sweetgum.
The tender leaves of a wide variety of tree species are food for these leaf-chewing caterpillars, with elm, oak, and apple being favorites.
While many consider late fall and winter as a time to stay indoors, it's important to help our trees and landscape before hibernation begins.
European Crane Fly
A swift decline in tree health, as exhibited by crown dieback, leaf discoloration and leaf drop might indicate the presence of the eucalyptus longhorn borer.
The larvae and adults of the elm leaf beetle can completely defoliate elms when populations are large.
The eastern tent caterpillar is a pest native to the United States, favoring wild cherry, apple and crabapple trees. The pest is a most serious threat when attacking black cherry trees.
These insects bore into tree bark and cause ugly scars. Brown frass around bark cracks or wounds may indicate an infestation.