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 each molt. This protective outer layer helps shield the oystershell scale from natural predators.
Oystershell Scale: An Unusual Insect Pest Read More »
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 prevalence of ‘decline’ symptoms on well-established Norway spruce. Originally a favorite due to the relatively low incidence of health issues, the Norway spruce is now… Read More Decline in Spruce Trees
Decline in Spruce Trees Read More »
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 to planting success Successful establishment of new plantings is dependent on correctly matching species to site and creating a soil environment that will allow… Read More Caring for Young Trees
Caring for Young Trees Read More »
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 with Asian parents, are generally more resistant, but can still become infected. The disease causes black spots to form on leaves, along with elongated black… Read More How to Prevent Boxwood Blight
How to Prevent Boxwood Blight Read More »
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 events and to reforestation efforts. As part of that program, Bartlett Tree Experts celebrated Arbor Day and Earth Day 2019 by distributing over 21,000 trees!… Read More Arbor Day and Earth Day 2019
Arbor Day and Earth Day 2019 Read More »
“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 ancient Romans, who believed the edible nuts were the food of their god Jupiter. Walnut wood is prized for woodworking and gun stocks. The wood… Read More Common Walnut
“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 planted widely beyond that range also. Coast redwoods are the tallest trees in North America. The lumber is highly valued for its beauty, is light… Read More Coast Redwood
“The Most Common Texas Oak” The post oak (Quercus stellata) is one of the most common oaks in Texas, and occurs from Texas and Oklahoma east throughout the southeast and mid-Atlantic states. The latin ‘stellata’ means ‘star’ and refers to the star-shaped trichomes, or leaf hairs, on the bottom surface of its leaves. Decay-resistant, the… Read More Texas Post Oak
“An Ideal Ornamental for Hot Climates” Aleppo pine is native to the Mediterranean region, and is often grown there for timber and other wood products. In North America, it is widely planted in parks and landscapes as an ornamental in similar hot climates with seasonal rain such as Arizona and Southern California. In Greece, the… Read More Aleppo Pine
“A Hardy, Slow-Growing Evergreen” Japanese evergreen oak is native to Japan, South Korea, Taiwan, and parts of China. It was introduced in the United States in 1878. This species, Quercus acuta, is often confused in commerce with other evergreen oak species such as Quercus glauca and Quercus myrsinifolia. The wood of the Japanese evergreen oak… Read More Japanese Evergreen Oak
Japanese Evergreen Oak Read More »
“A Prized, Historic Tree” White oak is the reigning tree over its growth range. Some of the largest and most famous trees are oaks. The wood has been highly prized since colonial times, and was used in construction of the USS Constitution, a warship named by President George Washington.
Pear trellis rust is caused by the fungus Gymnosporangium sabinae. It was introduced into the United States from Europe in the 1990s and has been progressively spreading through states in both the East and West. The disease affects common pear, callery pear, and several species of juniper/eastern red cedar.
Being a leader in the tree care industry means continually focusing on learning and innovation. Bartlett’s Tree Topics blog follows in that tradition by offering a place to receive advice on trees, tree pests, tree preservation, and more.
