Join the ISAT
Mailing List

Sign Up Here
We will never sell or give your email away

Search ISAT Website

Become a member
Tree Conference
Climbing Championship
Certification Info
Tree Pests
Municipal Group
Board of Directors
ISAT Documents
Tree License Plate
Tree Videos
Useful Links
Advertising with ISAT

Find a Local Arborist
Hiring an Arborist
Tree Care Info 

Developers and Builders
Texas Tree Ordinances
Sustainable Planning

John Giedraitis
Executive Director
2013 Oakwood Trail
College Station, TX

join now

Contact the Webmaster

***Caring for Flood Damaged Trees***

*** Pest Alert: Crape Myrtle Bark Scale ***

Sponsors and Exhibitors Information

June 15, 22, July 13, 20, 2015

Become a ISA Certified Arborist
June 15 & 22 and July 13 & 20, 2015
16 topics in four days
Austin, Texas
(Registration is now closed)

This International Society of Arboriculture (ISA) Certified Arborist Exam prep course is designed to provide foundational knowledge in arboriculture and supplements the ISA Certification study guide.  This course is open to everyone. Professionals and non-professionals alike are encouraged to attend to gain a better understanding of trees and tree care.

Click here for more information

August 8-12, 2015
Orlando, FL

AUGUST 8 - 12

ISA's Annual International Conference and Trade Show is the world's premier gathering of arboricultural professionals,  where practicing arborists and urban foresters come together with top researchers and educators to learn the latest in research, technology, and innovations in arboriculture and urban forestry.   Join us in Orlando, Florida this year.  Early Bird registration is now open until June 12, 2015.  For more information and to register, click here...


April 2-3, 2016
San Antonio

The World Comes to Texas!!!

2016 International Tree Climbing Competition
Come to Texas in 2016
April 2-3, 2016
Brackenridge Park, San Antonio, Texas

You are invited! In addition to the competition, next year’s ITCC will offer educational opportunities with demonstrations of safety and best practices, industry vendors, and many activities to engage the public, creating an exciting event for everyone who will participate.

Click here for highlights from the 2015 ITTC in Tampa

Click here for ITCC information

San Antonio

August 13-17, 2016
Fort Worth

The World Comes to Texas!!!

2016 International Tree Conference and Trade Show
Come to Texas in 2016
August 13-17, 2016
Fort Worth, Texas

Save the date! ISA’s Annual International Conference and Trade Show is the world’s premier gathering of arboricultural professionals, where practicing arborists and urban foresters come together with top researchers and educators to learn the latest in research, technology, and innovations in arboriculture and urban forestry. 

Click here for why you should visit Fort Worth!


Sept. 4 to Sept. 25, 2015
San Antonio

Certified Arborist Test Preparation Course

Fridays, September 4th to September 25th, 2015 9:00 am – 4:00 pm
San Antonio Botanical Garden


Registration Link


 Course Description:

This course was designed to help prepare professional arborists to take the ISA Certified Arborist examination. The teaching cadre has over 210 combined years of experience in the tree care industry. Nonprofessionals are also welcome to attend the entire course or other sessions to gain a better understanding of the benefits of trees and develop their tree ID and tree care skills. Three years of experience is required to take the ISA Certified Arborist exam. For more information on the exam, please visit Course schedule:

September 4 Tree Biology, Tree Identification, Soil Science, and Tree Support

September 11 Water Management, Tree Nutrition and Fertilization, Tree Selection, Installation and Establishment

September 18 Pruning and Oak Wilt, Diagnosis and Plant Disorders, Plant Health Care, and Tree Assessment and Risk Management

September 25 Trees and Construction, Urban Forestry, Tree Worker Safety, Climbing and Working in Trees


San Antonio

Sept. 28-Oct. 2, 2015
2015 Master Volunteer Entomology Specialist
Sept. 28- Oct. 2, 2015
Conroe, Texas

MVES training provides a unique opportunity for Master Gardeners and Master Naturalists to deepen their knowledge and appreciation of arthropod life.  The purpose of the program is to equip Master Gardeners and Master Naturalists to support and expand insect-related county educational programs of the Texas A&M AgriLife Extension Service. The goal of the Entomology Specialist program is not to produce entomology "experts"-rather it is to identify and recognize master volunteers who have received special training to support specific entomology-related programs or projects. In the past, projects have included educational projects for school children about bugs, building entomology collections for county programs, training other master volunteers, developing presentations, and/or applied research relating to insects.

Click here for more info

August 13-15, 2015

Nursery/Landscape Expo
Aug. 13-15, 2015
Kay Bailey Hutchison Convention Center, Dallas

Discover the latest Green Industry products, showcased among seven acres of tradeshow floor and over 1,000 exhibiting booths. Gain a new perspective as you meet face-to-face with thousands of industry experts and share new ideas by participating in over 40 learning sessions and three notable keynote presentations. #InspireTNLA 

Click here for more info


The Famous Trees of Texas
 2015 Edition

The long-awaited Famous Trees of Texas, TFS Centennial Edition, which tells the exciting stories of Texas frontier history that trees might tell if they could speak is now available through TAMU Press,8201.aspx or Amazon

All royalties received will go to the TFS TreeCovery Fund, a fund to help reforest communities that have experienced disasters.
What am I?
ID Those Texas Trees

The Trees of Texas has a new look. This summer the website underwent a major revision to give it a new look and new life.  Check out the website here:  New Trees of Texas posters and bookmarks are available for giveaways in the Conservation Education office, stop by and get yours today. To learn more about the different Texas A&M Forest Service conservation education programs, contact Leslie Kessner at

Texas Tree Trails -
There’s an app for that!

Tree Trails, an educational application designed to collect, display, and share information about trees, has a free mobile application available on iTunes.  The Tree Trails application allows teachers, youth leaders, community parks personnel, arborists and others to create a custom trail of trees, complete with photos and ecosystem services values.

Click here to see it in action


Arborist News Quizzes Online

Arborist News Quizzes are now available through the ISA web store. Free to members for one year. Learn how to access this easy way to earn CEUs.

Arboriculture and Urban Forestry Quizzes Online

Arboriculture & Urban Forestry quizzes less than one-year old are available online for free to members only. Online quizzes over one-year old may be purchased by members for $9.95 and by non-members for $12.95. If you are certified and successfully pass the quiz with a score of 80% or higher, CEUs will be posted to your account within 48 hours.
Study Urban Forestry On-Line

eLearn Urban Forestry is a state-of-the-art online, distance-learning program geared specifically toward beginning urban foresters and those allied professionals working in and around urban and urbanizing landscapes, including service foresters, natural resource planners, landscape architects, city officials and public works employees. 

To access the program for free go to and for ISA and SAF credit go to .

Other Events of Interest

Read the Latest Editions of ISA’s Magazines Online

Read the latest Arborist News

Not an ISA member, click here!

The National Tree Benefit Calculator

What is that tree worth?

Find out here on the National Tree Benefit Calculator


2015 update - Texas Supplement to the Guide for Tree Appraisal

This Texas Guide is designed to be used by professionals who need to perform plant appraisals involving casualties, damages and takings of plant materials.

You can purchase the Texas Supplement here.

This document represents the third approximation of the Texas Supplement to the Guide for Plant Appraisal, developed by the Texas Regional Plant Appraisal Committee under the auspices of the Texas Chapter - International Society of Arboriculture. It is intended to be utilized as a companion or supplement to the 9th Edition of the Guide for Plant Appraisal, written by the Council of Tree and Landscape Appraisers and published by the International Society of Arboriculture.

If you are a member of the Texas Chapter ISA, you can contact John Giedraitis at for a free copy of the 2015 Texas Supplement. If not, you can purchase it here and as a bonus, you will also receive a free $45 Texas Chapter International Society of Arboriculture 2015 membership.

You can purchase the Guide for Plant Appraisal, 9th Edition here.

ISA Online Learning Center

ISA Online Learning Center

The ISA Online Learning Center is your portal to learning and professional development in the field of arboriculture. Here, you will find training courses such as the Introduction to Arboriculture Interactive Series as well as other courses on a variety of topics. Now, continuing education is available online 24 hours a day no matter where you are located.

As a special launch offer, take the Tree Worker Safety module for free and attain CEUs by successfully completing the course!

To get started, click the button below to login using your ISA online account or to create a free account to enter the ISA Online Learning Center.

You do not have to be an ISA member to create an online account.

Launch ISA Online Learning Center

What are shade trees good for?
What's so good about landscape trees?

A short video called "Why Trees"
 ISA Launches ArborPod

Podcasts, or Personal On-demand Broadcasts, have become one of the most direct ways of receiving educational programming specific to a particular topic of interest through a series of digital audio or video recordings. How does a podcast work? Audio or video files can be automatically transmitted via Internet and downloaded to a personal computer, smart phone, or MP3 player. A podcast can be compared to a magazine subscription in that the user subscribes to a podcast series and new content is generated and received on a regular basis. ISA has identified this medium as a highly accessible and effective means of providing ongoing, arboricultural information to tree care professionals to address today’s most current and relevant topics. We are excited and proud to have launched the first series of ArborPod™—Science of Arboriculture—which is now available through iTunes.

Detective Dendro

Climbing and Rigging

Free online training for boards, supporters

Tree Board University is a free online training program that provides self-paced training modules for both current tree board members and those interested in assuming leadership roles. More
  Alliance for Community Trees Archived Webcasts
On the third Thursday of each month, the Alliance for Community Trees (ACT) hosts a national webcast at 1 p.m. EST.  These webcasts are designed to provide information and training for urban forestry volunteers, community planners, and other professionals.  All webcasts, from June 2007 are archived on the ACT website and are free to view.  Sessions last approximately one hour and highlight successful programs and practices from across the nation. 


Available for free download

Storms Over the Urban Forest- Part I: Natural Hazard Management Planning
Tapping Carbon Markets for Urban Forests
Tree Technology- Part II: CRMs
* Reaching Bilingual Audiences

To view archived ACT webcasts visit:
Click here for the ISA International Calendar
Click here to view Past Events