• 08 Feb 2020 9:20 AM | Jacob West (Administrator)

    Learn to prune young trees and help the city of San Antonio improve the structure of  recently planted trees. 


    When:  Saturdays,


    February 8, 2020


    You must register in advance using document below and then contact Mark Bird at:



    Learn to prune young trees and help the city of San Antonio improve the structure of  recently planted trees. 


    When:  Saturdays,


    February 8, 2020


    You must register in advance using document below and then contact Mark Bird at:



  • 11 Feb 2019 6:58 PM | Mark Kroeze (Administrator)

    Bring your used or extra rigging or climbing rope to Vermeer so local Boy Scout troops can use it to study knot tying. 

  • 06 Feb 2018 3:27 PM | Mark Kroeze (Administrator)

    The 2018 Jammin Jams Fruit Tree Adoption occurs on the last Saturday in January. This year was no different, with some folks getting in line at 3:30 AM! In total, we handed out over 1,700 fruit and nut trees. These were beautiful specimens and will undoubtedly lead to bountiful harvests of fruit in years to come. This is one of my favorite events of the year, and next year you have to make it! 

    Here is a news segment on this years event: 

    Thank you to the San Antonio Arborist Association for answering those tree questions!

  • 22 Sep 2016 7:38 AM | Jacob West (Administrator)


    Paul Johnson with the Texas A&M Forest Service, who used to manage the urban forestry program for San Antonio, was recognized as a True Professional of Arboriculture by the International Society of Arboriculture.  Congrats Paul!


    Urban and Community Forester named an ISA “True Professional of Arboriculture™”

    CHAMPAIGN, Ill.  – Paul Johnson, of Austin, Texas has been named a “True Professional of Arboriculture™” by the International Society of Arboriculture (ISA). The True Professional recognition program honors arborists and tree care professionals for their positive impact on the industry in and around their communities.

    Click here for a video on Paul Johnson.


    As an ISA Board Certified Master Arborist® and the Urban and Community Forestry Coordinator for the Texas A&M Forest Service, Johnson uses his background as a radio talk show host, and newspaper columnist to present arboriculture content in a fun and engaging way. He has a passion for teaching others how to be an effective presenter and encourages his employees to speak to local groups in their neighborhoods.

    “I have had the pleasure to serve with Paul Johnson on the ISA Board of Directors, and can attest to his skills as gifted speaker,” says de Gourét Litchfield, ISA board president.  “He has lectured at countless workshops and conferences, and has inspired and encouraged many ISA members, myself included. He is a true leader of the urban and community forest world on all levels.”


    Johnson is the creator and host of the “Trees are Key” podcast,, for the Texas A&M Forest Service focusing on a tree species of the week theme and tree-related events. The series now has more than 10,000 listeners per year from at least 20 different countries.


    “I started out with topics related to why trees are key such as hiring a tree care professional, how to grow healthier trees, and proper tree planting,” he says. “The podcast is all about helping people get the best information, using current research, best practices and industry standards, but sharing the information in a different manner.”

    Johnson thinks passion is a necessary characteristic of a True Professional. “There are people who say they don’t have time to do this or that, but ultimately we all find time to do the things that we think are important,” Johnson says. “We need more people who are going all out to do everything they can to make a difference because trees and the environment are key to our future.”


    Johnson was recognized at the opening general session of ISA’s 92nd Annual International Conference last month in Fort Worth, Texas, US. He is one of eight individuals selected as a 2016 True Professional. ISA launched the “True Professionals of Arboriculture™” recognition program in 2009 to increase public understanding of arboriculture and the professional skills of today’s arborists. Recipients are from various backgrounds in the profession and hold industry credentials including certifications from ISA. 

    Individuals are selected by the ISA Awards Committee, a diverse group of experts in arboriculture including university professors, retired arborists, tree care company owners, trainers, and forestry managers. After selection, award recipients are approved by ISA’s Board of Directors.


    Profiles and case studies of the “True Professionals” will be featured on the ISA website at and highlighted in future ISA publications such as Arborist News.


    ABOUT ISA           

    The International Society of Arboriculture (ISA), headquartered in Champaign, Ill., U.S., is a nonprofit organization of more than 30,000 members and credential holders worldwide, supporting tree care research and education. To promote the importance of arboriculture, ISA manages the consumer education web site,, which fulfills the association’s mission to help educate the public about the importance and value of proper tree care. Also, as part of ISA’s dedication to the care and preservation of shade and ornamental trees, it offers the only internationally-recognized certification program in the industry. For more information on ISA and Certified Arborists, visit

  • 20 Jul 2016 9:03 AM | Jacob West (Administrator)

    In mid-April 2016 the city of San Antonio(COSA) officially became a Tree City USA. This program offers direction, assistance and national recognition for our community and a framework for sustainable tree programs, initiatives, and ordinances.


  • 21 Jan 2014 3:35 PM | Jacob West (Administrator)

    Please join us in congratulating Booker Arradondo (SAAA president) as the Texas Chapter of International Society of Arboriculture’s, Arborist of the year!


    See the article on page 10 in ISAT's newsletter here:


  • 16 Jan 2014 2:56 PM | Mark Kroeze (Administrator)

    After Car Accident


    After Accident                                     1 Year Post Treatment


    David Vaughan of Etter Tree Care in San Antonio presented in the December edition of the Lunch Speaker Series on repairing trees after trunk damage after accidents like vehicle collisions.  Here is a follow up from Mr. Vaughan following the presentation:


    During my presentation, Rebecca Johnson asked if I thought the Tree-age procedure would work if the tree were 100% girdled.  I replied that I did not know but thought it was worth a try.  I have given that question some more thought and done some technical reading and would like to modify my answer.  I am convinced the procedure would work even if the tree were 100% girdled as long as you get protection over the wound within about 3 days and we have active xylem present.

    A tree has all of its defenses located at the wound site and is not trying to transport anything to that location.  The fact that phloem and cambium has been removed does not effect the ability of the tree to form surface callus by parenchyma cells.  This surface callus forms quickly and quickly differentiates into functioning cambium and phloem.  I think quickly means within about a month.

    Reasonably healthy Trees have good stores of "food"  that allow them to survive through bad times like drought, flooding, etc.  They can survive off these stores long enough for this process to process.

    Try Tree-age on any wound that still has active xylem that you get to in a reasonable time.  Thanks Rebecca for a great question.  By the way, I will try this on a tree or two this year and let you know the results.





    David M. Vaughan
    Certified Arborist TX 0118
    TOWC 0061

  • 22 Apr 2013 2:16 AM | Don Pylant (Administrator)
    After the single driest year in recorded history in 2011, many parts of Texas are still in a drought two years later and the forecast may not be better.

    According to the state climatologist, the state may be in the midst of the second-worst drought on record.

    Speaking before the Texas House and Senate Natural Resources Committees in February, Dr. John Nielsen-Gammon said that Texas has received only 68 percent of its average rainfall over the past two years, and if the rainfall deficit continues, the current drought could be the worst recorded. Reservoir levels are at their lowest since 1990, he said, and the forecast is for slightly drier conditions than normal in 2013.

    See more here DROUGHT UPDATE

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