From time to time anyone who owns trees may need to hire an arborist. An arborist is a specialist in the care of individual trees. Arborists are knowledgeable about the needs of trees, and are trained and equipped to work safely in trees and to provide them with proper care. Proper tree care is an investment that can have substantial returns. Well-cared-for trees in good condition can add significantly to the value of your property just as trees in poor condition can be a significant liability. To protect your trees it is important to hire a qualified professional.

When hiring an arborist for the first time one of the best ways to get potential names is to ask people you trust for a referral. Alternatively, the telephone directory provides a listing of arborists that advertise in the area. They are usually listed under the heading "Tree Service."

Yellow page listings often provide enough information to select several arborists to call. When interpreting listings look for the following things:

• Membership in professional organizations such as the Minnesota Society of Arboriculture (MSA), the International Society of Arboriculture (ISA) or the National Arborist Association (NAA). Membership in such an organization demonstrates a willingness on the part of an arborist to stay informed regarding the latest techniques and information.

• ISA Certification.  The International Society of Arboriculture certifies through a voluntary written exam that arborists have a demonstrated level of competency. In addition, arborists must agree to continuing education to maintain their certification.

• Be wary of tree services that advertise "topping" as a service.  "Topping" is extremely harmful to trees and is not an accepted professional practice.

Arborists provide a variety of services including pruning, removal, emergency tree care, and plant health care. Arborists often provide quotes for specific work free of charge. However, at times you may just want assistance from an arborist in making a decision about what needs to be done. In this case don't be afraid to ask the arborist what he/she charges for a consultation.

When making the decision to hire an arborist you should also ask for the following:

• Proof of insurance.  A reputable arborist will have personal and property damage insurance as well as worker compensation insurance. Be sure to check with the insurance companies to make sure that these policies are current if you have doubts.

• References. Don't hesitate to check references or visit work sites where your arborist is working or has worked in the past.

Written agreement.  Most arborists will provide written estimates and have their clients sign a contract before beginning work. Be sure to read the contract carefully. If you have any questions, ask them before signing.

The information provided above may help you in the process of hiring a professional arborist. This person through his/her knowledge and skill can help you in caring for your trees.

P445A
Reviewed 10/98