Friday, April 20, 2018 from 9:00 AM to 4:00 PM CDT
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University of the Incarnate Word – Mabee Library 
4301 Broadway St
San Antonio, TX 78209

Driving Directions 


John Giedraitis 
Texas Chapter ISA 





5.5: CA
2.75: BCMA S
2.75: BCMA P
5.5: MS

Cancellation refunds will be honored with a $25 processing fee if requested seven (7) days before seminar. Attendee substitutions can be made.




Caring for our Senior Trees Workshop - San Antonio 

Howdy! The online registration is now closed but you can register at the door. 

Please read below for information you will need for Friday's Mature Tree Care Workshop:

Parking: This is college campus so read this over before you get in your car to drive over.

  1. Print out this map (Map 1) - it provides the walking path to reach the University of the Incarnate Word Mabee Library, 4301 Broadway St, San Antonio, TX 78209. The Auditorium is on the ground level.
  2. Print out this parking pass. All attendees should place a pass on their dashboards.
  3. Please enter the campus at the Burr Road entrance off Broadway at the light. 
  4. Print out this map (Map 2) also - On April 20th, there is a large event planned for the Alamo Heights community on the university campus. Preparations begin at the crack of dawn!  Map 2 is the overview of all parking. Basically the so-called "Economy Parking Areas" will not be available. If you are an early arrival, try the "Premium Parking Area" first and the "Free Lots" second.
  5. Arrive early: Our start time is 9 am sharp - parking and walking to the Mabee Library will take a few minutes so arrive early. Registration will open at 8:30 and coffee will be available.
  6. Lunch will be supplied

See you there!



All are invited to this ISA Texas Chapter Master's Series that will help you understand how trees age and teach you the specialized skills required to maintain mature trees.  Mature trees respond differently to available resources and environmental changes than younger trees. Tree health care management must account for the unique processes of mature trees and different arboricultural practices are required to help maintain mature tree health, structural integrity, and growth.   Mature tree physiology and prescriptions for pruning, fertilization, and prevention of injury will be highlighted.


9-10:30am: Dr. Rex Bastian – The Davey Tree Expert Company

Title:  Part 1: Arboriculture and Energy Dynamics: Understanding the Maturing Tree

10:30-10:45am: Break

10:45-Noon: Dr. RJ Laverne – The Davey Tree Expert Company

Title: Maintaining Mature Trees – Lightning Protection

Noon – 1:00pm: Lunch

1-2:30pm: Dr. RJ Laverne – The Davey Tree Expert Company

Title: Maintaining Mature Trees –Cabling and Bracing

2:30-2:45pm: Break

2:45-4:00pm: Dr. Rex Bastian – The Davey Tree Expert Company

Title: Part 2: Arboriculture and Energy Dynamics: Understanding the Maturing Tree

Speaker’s Bios:

Rex joined The Care of Trees in January of 1989 after receiving his Ph.D. from Iowa State University, majoring in Entomology.  He is currently a semi-retired Regional Technical Advisor for The Davey Tree Expert Company/The Care of Trees, with emphasis on education and training, public relations and diagnostics.  He is an ISA Board Certified Master Arborist and is the recipient of the 2017 Award of Merit from the ISA.  He and his wife, Arnie, live amongst the trees of the Shawnee National Forest in southern Illinois.

Robert J. Laverne is the Manager of Education and Training for the Davey Tree Expert Company.  He is responsible for providing the 9,000 employees of Davey with the most current information and training they need to perform their jobs safely and informed.  He also teaches Urban Forestry at Michigan Technological University.  R.J. received a bachelor’s degree in biology from the University of Michigan, his forestry degree is from Michigan Technological University, and he earned a master’s degree in remote sensing from the University of Michigan.  He earned his Ph.D. in urban studies and public affairs at Cleveland State University.  His dissertation research investigated the loss of urban forest canopy and the related effects on soundscape and human directed attention.  R.J. is an ISA Board Certified Master Arborist, is a Registered Consulting Arborist through ASCA, and is an instructor for ISA Tree Risk Assessment Qualification course.