corkoak1Trees represent on of the most valuable components your property has to offer.

They not only provide the framework in which your architecture is viewed, but is also an important element relating to human activities and environmental quality.

Managing the health of urban trees has always been challenging. There are thousands of different tree species, each with their own cultural requirements and all prone to a variety of pests and diseases. Arbortech’s trained staff can provide you with the most up to date information available for your plant health care needs.

Benefits of Pruning

slide-Bucket-pruningTrees are an investment in your property that lasts for decades. Professional tree pruning is one of the best ways maintain healthy beautiful trees. Proper pruning, improves the health and structure of your trees by removing dead, broken or diseased branches which improves the structure of the tree and diverts vital nutrients to where there needed most. Crown restoration and end weight reduction are some times necessary to help correct structural defects or repair damage caused by improper pruning practices. Branches overhang driveways, walkways or buildings sometimes pose a safety hazard and may need to be pruned or removed. Mature tree pruning is usually limited to the removal of dead, dying or diseased branches in order to maintain and improve the heath and aesthetic appearance of the tree as well as improve light penetration to a yard or structure. Branch weight reduction decreases the risk of large dead or weak branch failures, which might otherwise cause personal injury or property damage. Young Tree pruning is one of the best ways to insure a tree reaches its full beauty and potential and reduces the chance of problems as your landscape matures.

Tree Removal

corkoak1There are many reasons why people choose to remove trees. While we prefer to preserve trees, there are times when tree removal becomes necessary. When contracting for tree removal it is important to consider safety and liability. When performing tree removal our trained staff will work carefully and professionally. Our company has years of experience performing safe, controlled tree removals of any size. Safety is always more important than profit. If you are considering tree removal, we encourage you to contact us and have one of our Certified Arborists help you make the right decision.

Stump Removal

Greg-bid-stump-1Stump grinding usually occurs after a tree is removed for appearance reasons. A variety of specially designed machines are used to grind the stump between 6”-8” below ground level, where accessible, larger stump grinders can be used to go as deep as 18”-24” below grade. Stump chips are generally left on site and can be used as ground cover or mulch for planter beds.


soil_importance3Vertical Mulching is done to prolong the effects of Root Aeration performed with the auger drill. This is achieved by filling the holes drilled with the auger with a coarse material such as gravel. This helps to prevent further soil compaction. This method can be done in conjunction with Root Feeding or Fertilization by filling the holes after the food or fertilizer is applied.


soil_importance2It is true that healthy trees start with healthy soil. That doesn’t mean you run out and buy whatever fertilizer happens to be on sale. Understanding when and how to apply fertilizer and in what quantity requires knowledge and training. Our trained Arborists and PHC Specialists can guide you through this process and design a plan that best fits your needs.

How Important is your Soil

soil_importance1Understanding soil health is a very complex topic. If you think you have a soil problem we encourage you to have one of our Certified Arborist or PHC specialists inspect the site and help you determine what course of action would be best. Issues such as soil compaction, nutrient deficiencies are sometimes easily correct however if lift untreated will make the tree more vulnerable to stress and failure. It may be necessary to take soil and plant tissue samples and have them analyzed in a lab to get a detailed report of the soil profile and any nutrient deficiencies along with identifying any soil bound pathogens or diseases. Once this is done the Arborist will explain to you the results and will design a treatment plan to address any problems that were found.

Soil Management Soil Ammendment Soil

Fire Safety

Many cities and counties have specific guidelines to follow for fire safety. The following is an overview of standard practices for fire safety.

What are the Minimum Abatement Standards?

All combustible rubbish, trash, trimmings, or litter which presents a fire hazard shall be removed from the property.

All combustible materials of value being stored outside of a building shall be neatly stacked and have all combustible growth cleared for 30 feet around it.

Mowing is the abatement method encouraged by the City, and should be at a maximum of 6 inches.

Maintain the roofs of all buildings or structures free of leaves, needles, twigs, and other combustible matter.
TREES – Remove any portion of a tree which extends within 10 feet of the outlet of a chimney or stovepipe.

Maintain 5 feet of vertical clearance between roof surfaces and portions of trees overhanging any building or structure.

Maintain volatile tree species (including Acacia, Cedar, Cypress, Eucalyptus and Pines) within the City of Fremont Hazardous Fire Areas so that no leafy foliage, twigs or branches are within 10 feet of the ground.

Maintain non-volatile trees within 100 feet of any building or structure or within 10 feet of that portion of any highway, street, alley, or driveway which is improved or used for vehicle travel or other vehicular purposes, so that no leafy foliage, twigs or branches are within 5 feet of the ground.
On Parcels Greater than 3 Acres

Provide 30–foot firebreaks and crossbreaks.

Provide crossbreaks which divide the parcel into approximately 5–acre sections.

Firebreaks and crossbreaks are a continuous strip of disced, dozed, or mowed ground, following as closely as possible to the property line and along one side of all fence lines, ditches, and on top of all ridges.

When terrain is too steep or rugged for a tractor, a mowed firebreak may be required.

All residential structures on parcels over 3 acres must have a 100-foot firebreak and other structures a 30-foot firebreak (disced, landscaped, or mowed) around them.

Fire Safety

Cabling and Bracing

The installation of cable and bracing systems are used for a variety of reasons to reduce the potential of limb or trunk failure. There are many reason trees fail, such as; structural defects, included bark, poor crotch angles, co-dominant laterals, and rot or decay just to name a few.  If you have large trees on your property, a Certified Arborist can spot potential hazards and make recommendations to help you choose the best course of action.

Why We Do Not Top Trees

Topping is the drastic removal or cutting back of large branches in mature trees. All too often, we see clients that have their trees topped, when they reach heights they consider to be unsafe. These fears are largely unjustified and have long term damaging effects to the trees and to the surrounding community. Many cities and public agencies have now implemented standards to prevent this type of pruning.
Topped tree Topped Trees


Starvation – Trees need leaves to manufacture starches during photosynthesis. A trees transport system move starches from the leaves to the roots. Topping removes the leafy crown that provides the root system with necessary nutrients.

Sun Scald – Sudden removal of the leafy protective layer exposes the bark to sun scald.

Insects and diseases – Large wounds prevent the natural defense system from functioning. The open wounds invite insect invasions and the spread of decay forming fungi.

Weak limbs – New fast growing sprouts emerge from topping cuts which have a tendency to fail due to weak attachment to the parent branch.

Rapid new growth – People believe they should top trees to control height and spread of tree. Actually, the opposite happens. Trees respond rapidly to injury by producing fast growing, long sprouts quickly resulting in the tree regaining or exceeding the height it once had.

Tree death – Some species of trees do not tolerate topping. The resulting lack of folage severely reduces the trees ability to capture sunlight and turn it into glucose, which in some cases leads to the death of the tree.

Ugliness – Topping disfigures the trees natural beauty and grace, which can never be regained.

Cost – The cost can be measured in many ways such as reduced property value, loss of other trees and shrubs that succumb to the environmental changes, risk of liability from branch failure, and increased future pruning costs.

Trees & Construction

Construction specifications typically include notes and details specifically designed to protect existing trees. Arbortech has worked with both public agencies and contractors to minimize damage to existing trees and to ensure that construction guidelines are met.  Arbortech works directly with contractors, architects, and designers for the purpose of developing tree protection plans, surveys, site evaluations and mitigation.

Common Replacement Trees

Several common replacement trees are:

Bronze Loquat
California Redbud
Canary Island Pine
Carolina Laurel Cherry
Chinese Flame
Chinese Pistache
Cork Oak
Crape Myrtle
Eastern Redbud
Evergreen Pear
Flowering Crabapple
Flowering Pear
Flowering Plum
Green Showers Mayten
Heritage River Birch
Japanese Flowering Cherry
Japanese Maple
London Plane
Panicled Goldenrain
Pin Oak
‘Ray Hartman’ Ceanothus
Red Maple
Red Oak
Swamp Myrtle
Trident Maple