The follwoing article has been provided by: the International Society of Arboriculture and Trees are Good http://www.treesaregood.com/treecare/phc.aspx
Understanding
Plant Health Care
The most common
reason a tree owner calls an arborist is concern that something is wrong with a tree. It may be that some of the leaves are
discolored, a branch has died, or perhaps the entire tree has been dropping leaves. Sometimes the cause of concern is a minor
problem that is easily explained and corrected. Other times the problem is more complex—with several underlying causes
and a remedy that requires treatments extending over several years. Unfortunately, there are instances in which the problem
has gone undetected for so long that the tree cannot be helped, and the only option is removal. If an arborist had been called
earlier, perhaps the tree could have been saved.
The Solution: Plant Health Care
Situations such as these led arborists to create Plant Health
Care (PHC) programs. The objective of PHC is to maintain or improve the landscape’s appearance, vitality and—in
the case of trees—safety, using the most cost-effective and environmentally sensitive practices and treatments available.
Plant Health Care involves monitoring, using preventive treatments, and adopting a strong commitment to working closely with
you, the tree owner.
Why
Plant Health Care, Not Tree Health Care?
While
trees are dominant ornamental features in your home landscape, they share this area with turfgrasses, shrubs, and bedding
plants. And all these plants have one resource in common: the soil. The roots of trees, shrubs, turfgrass, and bedding plants
intermingle and compete for water and nutrients. In fact, the roots of a single mature tree may extend 60 feet or more out
into your lawn or flower beds. Every treatment applied to the lawn (fertilizer and herbicide, for example) can impact the
appearance and vitality of a tree. Conversely, treatments applied to a tree, such as pruning and fertilizing, can influence
the appearance and vitality of the underlying turfgrass. The care of each plant in a landscape can affect the health of
every plant in that landscape.
Why
Contact an Arborist for Plant Health Care?
Trees
and shrubs represent a considerable long-term investment in your landscape. With proper care, these plants can provide beautiful
surroundings, cooling shade, and many other benefits for decades. Arborists have the experience and training to detect many
potential tree and shrub problems before they become life threatening or hazardous. In addition, arborists can make tree and
shrub recommendations, such as species selection and placement, to keep many problems from occurring in the first place. Arborists
can also consult with other landscape services you may use, lawn care for example, to ensure that the treatments are coordinated
and will not be harmful to your trees and shrubs. Remember, the potential size and longevity of trees and shrubs warrants
their special attention in your landscape. Bedding plants can be replaced in a few short weeks and a lawn in a single growing
season, but it can take a lifetime or more to replace a mature tree.
What Does a Tree and Shrub PHC Program Cover?
Every home landscape is unique, so there is no standard PHC program. Plant Health Care
programs do have features in common, however. First, PHC involves monitoring tree and shrub health. This step allows problems
to be detected and managed before they become serious. The monitoring may be as simple as annual visits to check on a few
special trees in your landscape, or it may involve more frequent quarterly or monthly inspections of all your trees and shrubs.
The monitoring frequency and complexity of your PHC program depend on the size and diversity of your landscape as well as
your particular landscape goals.
Second, if problems
or potential problems are detected or anticipated during a monitoring visit, your arborist will develop solutions. The solution
could be a simple change in your lawn irrigation schedule—many trees are kept too moist—or more detailed suggestions,
such as pruning or spot applications of pesticides.
Finally,
PHC involves you, the client. Your arborist will give you information about your trees and shrubs. This information ensures
that decisions are made that address your concerns and are appropriate to your landscape budget and goals. Information may
be provided through a variety of means. Obviously, discussions and answering questions are important means of conveying information,
but many PHC programs include written recommendations after each monitoring visit. Plant Health Care is a program tailored
to the needs of the client and his or her trees and shrubs.
How Will My Trees and Shrubs Benefit from PHC?
Because ornamental trees and shrubs can quickly succumb to problems, routine monitoring and timely
treatments can protect your landscape investment and reduce expenses. A monitoring visit to your landscape might reveal
- a hidden infestation of tent caterpillars that may soon defoliate
the ornamental crabapples in your front yard
- a weakly attached
branch that may fail and damage the house
- improperly pruned shrubs
that are not flowering as abundantly as they should.
Your Plant Health Care specialist can recommend treatments and changes in maintenance practices that can eliminate
these problems while maximizing the safety and aesthetic quality of your landscape.
What Will a PHC Program Cost?
Because each program is individually designed to fit the needs of a particular landscape, no standard
price can be given without a site visit and assessment. You may have an interest in developing a plan for a few key trees
in your landscape, or you may wish to have the entire landscape placed on a program. PHC programs can also be structured in
different ways. For example, some programs charge a fee for monitoring and bill each treatment separately. Other programs
have an annual fee that covers all monitoring visits for the season as well as many potential treatments. These more comprehensive
programs provide the peace of mind in knowing that treatments for most potential problems are already covered by the program
without additional charges. Individualized programs and flexibility are at the heart of PHC. You will find that your arborist
can design a Plant Health Care program that fits your goals and budget.
How Do I Choose an Arborist?
Check the phone directory for arborists who are members of professional organizations such as the
International Society of Arboriculture (ISA), the Tree Care Industry Association (TCIA), or the American Society of Consulting
Arborists (ASCA), and also look for ISA Certified Arborists. These credentials demonstrate a commitment to education and to
staying abreast of the latest information and techniques. Ask for proof of insurance and references, and don’t hesitate
to check them. Remember, tree care is a substantial, long-lasting investment in your valuable assets; take the time to select
a knowledgeable professional to care for your landscape.
This article has been provided by: the ISA and Trees are Good
http://www.treesaregood.com/treecare/phc.aspx