Dry air, low precipitation, little soil moisture, and fluctuating temperatures are characteristics of fall and winter in many areas of Colorado. Often there is little or no snow cover to provide soil moisture from October through March. Trees, shrubs, and perennials under these conditions may be damaged if they do not receive supplemental water.
Plant Health Care
There are a wide variety of plant health care (PHC) programs available. Objectives of any PHC program is to increase the health and vigor of all you landscape plants (trees, shrubs, turfgrass, perennials). If the plant health is increased through the proper PHC program it can fight off many insect and disease problems on it's own. Chemicals controls can be used in situations where damage is significant, pest populations high, or tree value is significant. Always remember proactive tree care is far less expensive than reactive care.
Deep root fertilization
Trees and shrubs that are well nourished have better resistance to insects, disease, and drought. Tall Timbers provides a deep-root fertilizing program that can help keep your trees and shrubs healthier. Healthy trees and shrubs provide beauty, privacy and add value to your landscape.
IPS and Mountain Pine Beetle Control
Mountain pine beetle (MPB) is native to the forests of western North America. Periodic outbreaks of the insect, previously called the Black Hills beetle or Rocky Mountain pine beetle, can result in losses of millions of trees. This treatment is best when done as a preventative spray and the best way to keep your pines healthy. Along with this pesticide treatment we recommend proper pruning and fertilization to increase the vigor of the tree.
General Insect Control
This is our most common insect treatment. General insect control refers to aphids, mites, and caterpillars. These insects feed on the foliage of the plant and can do significant damage if present in high populations. Tall Timbers can suppress these insects pretty quickly with mild chemical controls but several applications may be necessary throughout the year.
Oystershell scale is the most damaging scale insect present in Colorado. It develops on the bark of trunks and limbs of a wide range of commonly grown deciduous trees and shrubs, including aspen, ash, cotoneaster, poplars, willow and lilac.
Lilac/Ash Borer is a common wood borer in our urban forests. Damage is caused by the larvae which tunnel into the trunks and lower branches of ash trees. Activities that can relieve tree stresses, such as supplemental watering, fertilization, should be considered part of any PHC program for lilac/ash borer control.
Emerald Ash Borer Update
Emerald Ash Borer (EAB) was found in Boulder, CO, in September 2013. As a non-native insect, EAB lacks predators to keep it in check. EAB only attacks ash trees in the genus Fraxinus (so mountain ash are not susceptible).
Approximately 15% of the trees that make up Colorado's urban forest are ash. There are an estimated 98,000 in the city of Boulder alone. The Denver Metro area has an estimated 1.45 million ash trees. EAB is responsible for the death of millions of ash trees in the United States.
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