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28 Apr 2010

Crown Cleaning Conifers

Reno Seasonal Tree CarePine trees and other conifers naturally shed lower and interior limbs like other trees however it tends to be more dramatic and noticeable in conifers than deciduous trees. This shedding should not raise health concerns however unsightly, however yellowing of needles or other discoloration near the exterior or top of the crown should cause concern. One may choose to crown clean pine trees to remove the shedding material, this practice is always aesthetically pleasing and removing dead and dying material is always a health benefit when proper tools are used and industry standard cuts are made. Removing dead material speeds the healing process of involved with shedding and can minimize susceptibility to infestation, reducing wind resistance lowering likelihood of a blow over in saturated soil and high wind conditions.

25 Apr 2010

Trimming landmark trees

professional Tree Care RenoAmerican Arborists takes pride in maintaining the trees located on the campus of University of Nevada at Reno.  When trimming mature high value trees like the elm trees located in the main quad there are some important practices to remember.  Like any other valued tree these trees were all climbed without spurs using ascenders and ropes, tools were cleaned with disinfectants and antibacterial spray to prevent the spread of disease.  It is important to have a Certified Arborist on staff to address and assess any concerns about structural stability or any other hazards especially in high traffic areas where failure could likely lead to damage to property or persons.  Remember not to get carried away with the removal of crown material, never exceed the removal of 20% it is easy to over thin or lion tale mature trees.  This practice can lead to unnecessary reactive growth and even tree stress decline or even death.

19 Apr 2010

Responsible tree trimming practices

Reno professional Tree CareReno Tree Service Company on trimming and pruning

Every now and then a customer questions how a tree or some of its limbs are  going to be removed, each time the answer is different but it always boils down to taking big pieces and making little pieces out of them.  In some cases trees can be cut into pieces using a bucket truck or climbing allowing them to fall freely to the ground.  In other situations typically found in urban forestry it is necessary to rope or rig pieces of the tree to the ground in a safe and controlled manor.
The art of Arborist rigging has an extensive history and is constantly innovating.  When done properly limbs can actually be lifted up and away from its position before coming to anchor point and lowered to the ground.  The picture above shows some cottonwood limbs that were overhanging a single phase primary and neutral wire, these limbs were tip tied and pulled back to a higher anchor point which pulled them up and away from the power lines before being lowered.
There are numerous rigging techniques that can be applied to manage the trimming or removal of trees regardless of the type of obstacles or targets that need to be negotiated.  There are many different Arborist rigging tools which have been developed to defend the health of trees used in rigging such as blocks, slings, nylon straps, port o wraps, cambium savers and many others.  It is important to hire a Certified Arborist familiar with contemporary rigging to ensure that there is no damage done to the trees used in rigging, or the surrounding property.

18 Apr 2010

Should I prune my trees in Spring?

trees in spring photoDuring the first month of spring I am commonly asked if it is too late to trim ones trees. 
The answer to that is no. Ideally it is best to trim trees during the dormant season before the trees begin budding and leafing out. Doing this prevents the waste of any of the trees resources and can minimize reactive growth. However if one follows common Arborist rules such as never removing more than 20% of the crown in any one trimming you can prevent the negative reactions to trimming even in months of extreme heat. Certain species such as silver maple may leak sap from cuts during summer months however this is just an aesthetic downside to trimming in the in late spring and summer.
In addition I should mention that common trimming services such as corrective pruning, or crown cleaning focus on removing only unhealthy and detrimental growth from trees. These pruning practices focus on the removal of stub cuts/improper cuts, dead, broken, diseased, and crossing branches. The removal of this material is always a good practice regardless of the time of year.