Pruning mature trees removes dead and dying branches to maintain plant health and safety

Looking at problems posed by excess soil and mulch around the base of tree:

Most of us are familiar with the results of drought stress, but did you know that high temperatures alone can cause significant damage to the health of your plants? Given

Wood boring insects feed on the inner wood (xylem) of roots, trunks, branches or shoots of a plant. While there are hundreds of wood boring species that are not considered

Mites are minute, plant-feeding arachnids that feed on chlorophyll, the pigment that gives plants their lovely green color. By removing chlorophyll, mites can cause plant foliage to appear bleached or

Aphids are small, sap-sucking insects. Some of them feed on more than one type of plant— for example, apple grass aphids feed on young new leaves and blossoms of apples

Oystershell scale (Lepidosaphes ulmi) belongs to a group of insects called the armored scales. The “armor,” is produced by a waxy secretion combined with the insect’s own body cast during

Over the past decade, spruce trees have suffered an abundance of issues. All species of spruce, including Colorado blue and white spruce, are being affected, but particularly concerning is the

Although long used as a groundcover, ivy is harmful for trees. It is not indigenous, and many species are aggressively invasive and displace native species. In North America, the most

Incorrect planting can lead to the production of girdling roots below the soil grade. Girdling roots are lateral roots that emerge at or slightly below the soil surface and cut

The proper care of young trees can prevent many future problems. Browse our resources to learn more about how to best care for seedlings and young trees. Planting Ten steps

Boxwood blight is caused by the non-native fungus Calonectria pseudonaviculata. American and English boxwood (Buxus sempervirens) are most susceptible to this disease whereas many Asian species of boxwood, and hybrids

This year marked the fifth anniversary of the Bartlett Legacy Tree Program, an initiative promoting tree planting and stewardship in local communities through the distribution of seedlings in schools, at

Common Walnut

“A Low-Maintenance and Frost-Hardy Tree” The walnut is a deciduous tree with bark that changes from green-brown when young to pale and fissured when mature. It was introduced by the

Coast Redwood

“An Iconic California Tree” An iconic tree of coastal California, redwoods are native to a thin coastal band from Oregon south through the Big Sur region of California, but are