Category Trees Cares

树木生长的奥秘

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Mulching

A layer of mulch around the base of a tree will protect it from damage and reduce competition from turf grass. Grass aggressively competes with tree roots for available oxygen, moisture and nutrients, so maintaining a grass-free zone under a tree will benefit it.

The mulch will also prevent the bark of the tree from being damaged by mowers or string trimmers.

Ideally, the mulched circle would be as wide as the tree’s canopy, though this is not always practical in small lawns with large trees. If you prefer the look of grass growing under the tree, it still is advisable to have least a small mulched ring around the trunk to protect the bark from equipment damage.

However, be careful to spread the mulch in an even layer about 2 to 3 inches deep and do not heap it against the trunk of the tre...

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3 Tree Planting Mistakes to Avoid

By Avoiding these few tree-care mistakes when planting or relocating trees to enjoy healthier, happier trees for generations to come 🙂

  • Plant trees too near utility lines.
    Trees should not be planted too near utility lines. Conversely, you should also be sure to consider underground utilities, including septic tanks and gas lines, before planting any trees.
  • Incorrect way of piling mulch around the tree.
    Don’t pile mulch into a mound up around a tree of any age. Instead, make a Donut of mulch around the base, being careful to avoid touching the bark with the mulch. Burying the base of the trunk with mulch is the same as planting it too deeply. It will result in the same slow decline and bring eventual death of trees.
  • Plant trees too deeply.
    If you follow a tree trunk down to its ...
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Treatment of Trees Damaged By Construction

The processes involved with construction can be devastating to the surrounding trees if no measures have been taken to protect them. The visible injuries such as broken branches and wounds to tree trunks are only the beginning. It is the damage to the root systems that often result in tree loss.
In an ideal situation, an arborist is called in to consult in the planning stages of construction. Trees can be preserved if the appropriate measures are taken soon enough. Unfortunately, it is usually when the first signs of decline appear that help is sought.

There are some remedial treatments that may save some construction-damaged trees, but immediate implementation is critical. If you have trees that have been affected by recent construction, consult a professional arborist promptly...

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Avoiding Tree Damage During Construction

As cities and suburbs expand, wooded lands are being developed into commercial and residential sites. Homes are constructed in the midst of trees to take advantage of the aesthetic and environmental value of the wooded lots. Wooded properties can be worth as much as 20 percent more than those without trees, and people value the opportunity to live among trees.

Unfortunately, the processes involved with construction can be deadly to nearby trees. Unless the damage is extreme, the trees may not die immediately but could decline over several years. With this delay in symptom development, you may not associate the loss of the tree with the construction.

It is possible to preserve trees on building sites if the right measures are taken...

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Recognizing Tree Hazards

Trees provide significant benefits to our homes and cities, but when trees fall and injure people or damage property, they are liabilities. Taking care of tree hazards makes your property safer and prolongs the life of the tree.

Trees are an important part of our world. They offer a wide range of benefits to the environment and provide tremendous beauty.

However, trees may be dangerous. Trees or parts of trees may fall and cause injury to people or damage to property. We call trees in such situations hazardous, to signify the risk involved with their presence. While every tree has the potential to fall, only a small number actually hit something or someone.

It is an owner’s responsibility to provide for the safety of trees on his or her property...

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Insects & Disease Problems

Insects and diseases can threaten tree health. As soon as you notice any abnormality in your tree’s appearance, you should begin a careful examination of the problem. By identifying the specific symptoms of damage and understanding their causes, you may be able to diagnose the problem and select an appropriate treatment.

Stress

Basic elements that influence plant health include sufficient water and light, and a proper balance of nutrients. Too much or too little of any of these environmental conditions may cause plant stress.

Environmental stress weakens plants and makes them more susceptible to insect and disease attack.

Trees deal with environmental stresses, such as shading and competition for water and nutrients in their native environment, by adjusting their growth and development p...

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Why Topping Hurts Trees

Topping is perhaps the most harmful tree pruning practice known. Yet, despite more than 25 years of literature and seminars explaining its harmful effects, topping remains a common practice. This brochure explains why topping is not an acceptable pruning technique and offers better alternatives.

What is Topping?

topping01Topping is the indiscriminate cutting of tree branches to stubs or lateral branches that are not large enough to assume the terminal role. Other names for topping include “heading,” “tipping,” “hat-racking,” and “rounding over.”

The most common reason given for topping is to reduce the size of a tree. Home owners often feel that their trees have become too large for their property. People fear that tall trees may pose a hazard...

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Pruning Mature Trees

Pruning is the most common tree maintenance procedure. Although forest trees grow quite well with only nature’s pruning, landscape trees require a higher level of care to maintain their safety and aesthetics. Pruning should be done with an understanding of how the tree responds to each cut. Improper pruning can cause damage that will last for the life of the tree, or worse, shorten the tree’s life.

Reasons for Pruning

Because each cut has the potential to change the growth of the tree, no branch should be removed without a reason. Common reasons for pruning are to remove dead branches, to remove crowded or rubbing limbs, and to eliminate hazards. Trees may also be pruned to increase light and air penetration to the inside of the tree’s crown or to the landscape below...

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Pruning Young Trees

Proper pruning is essential in developing a tree with a strong structure and desirable form. Trees that receive the appropriate pruning measures while they are young will require little corrective pruning when they mature.

Keep these few simple principles in mind before pruning a tree:

  • Each cut has the potential to change the growth of the tree. Always have a purpose in mind before making a cut.
  • Proper technique is essential. Poor pruning can cause damage that lasts for the life of the tree. Learn where and how to make the cuts before picking up the pruning shears.
  • Trees do not heal the way people do. When a tree is wounded, it must grow over and compartmentalize the wound. As a result, the wound is contained within the tree forever.
  • Small cuts do less damage to the tree than large cuts...
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