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.
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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.
The dogwood has been considered a treasure in the landscape for years. A destructive disease known as anthracnose can tarnish its image. Keep your dogwoods healthy with these tips.
The cottony maple scale is a large, flat, brown scale insect found on the twigs and branches of various trees. A favored host is silver maple, but it will also attack other species of maple.
Crabgrass is one of the most hated weeds in home lawns because it’s the most dominant.
The cherry bark tortrix is an introduced insect species from Eurasia affecting plants such as apple, crabapple, hawthornm mountain ash, and pear trees.
The California oakworm is one species of caterpillar that feeds on oak trees.
Whiteflies are tiny insects; their wings and bodies are covered in white wax.