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



Join the ISAT
Mailing List
Your Email:


Professional Tree Care Information
Dr. Ed Gilman: Landscape Trees

Kim Coder's UG Tree Articles

Tree Selection for Texas Urban Landscapes
Videos - How to select, plant and care for your new tree

Storm Damaged Trees (ISA)
Florida Nursery Grades & Standards (Trees) 

Penn State University – Pruning Landscape Trees Publication

Kansas State University – All About Pruning Publication

National Arbor Day Foundation Animated Tree Pruning Guide

OSHA Assistance for the Tree Care Industry

Best Management Practices for Tree Protection (TFS)

Construction Damage to Trees and Prevention (TFS)


Tree Identification

Texas tree ID overview

Texas online tree ID guide

ITIS, the Integrated Taxonomic Information System

The Plant List: A working list of all known plant species.


Tree Damage Appraisal
2014 update - Texas Supplement to the Guide for Tree Appraisal 

Income Tax Deduction for Yard Trees Loss (TFS Sept. 2011)

Income Tax Deduction for Casualty Timber Loss (TFS June 2011)

Forest Taxation (TFS) and National Timber Tax Website

Tree Risk Evaluation
Tree Risk Assessment Qualification Courses


Online Mapping Tool

Texas Forest Service Forest Information Portal


Soil, Water, Climate

Web Soil Survey:
Web Soil Survey (WSS) provides soil data and information produced by the National Cooperative Soil Survey.

Texas Online Soil Survey Manuscripts:
This Web site lists soil surveys that have been published by the U.S. Department of Agriculture since 1899.

Texas Agrilife Extension Soil, Water and Forage Testing Laboratory:

The laboratory’s primary mission is to provide research based analysis and non-bias recommendations for agronomic, horticultural and non-crop related soil analysis, plant tissue analysis, forage nutritive analysis, and non-drinking water analysis.

Office of the State Climatologist for Texas (OSC):

The Office of the State Climatologist strives to provide the state of Texas with accurate climate information and critical expertise in the field of climatology. In addition, this office hopes to play a significant role in the education and understanding of the climate, its elements, and its impact on Texas.

USGS Ground Water Data for Texas:

The Ground-Water database consists of more than 850,000 records of wells, springs, test holes, tunnels, drains, and excavations in Texas and the United States. Available site descriptive information includes well location information such as latitude and longitude, well depth, and aquifer.


Fruit and Nut Resources

Fruit and Nut Fact Sheets (TAMU)

Small Acreage Horticulture Crops (TAMU)

Texas Pecan Tree Management

Texas Pecan Board

Texas Pecan Growers Association

Pecan Budding and Grafting (TAMU)


News Search -Google - Keyword 'Arborist'

Links to Tree Links (comprehensive)

ISA Texas Chapter Information


Discussion Forums

TreeLink has a couple at


Society of Municipal Arborists is working on theirs at

Other Organizations

ISA Chapter Links

Texas Forest Service

Keep Texas Beautiful

Cross Timbers Urban Forestry Council


Texas Big Trees
Texas Big Tree Registry


Hardiness Zone Map

USDA Plant Hardiness Zone Map



Woodturning resources for arborists (from Curtis Turner Studios)