ISAT Online Learning Series

Bringing you the best scientists, educators and practitioners so you can keep up with the latest arboricultural research, information and technology – from wherever you are and whenever you want – all with our unique Texas trees in mind!

Upcoming Live Webinars: Make sure you are signed up for the free monthly ISAT TreEmail here.

ISAT Live Webinars

Here is how to watch the live webinar and get your ISA CEUs:
1. Register for the webinar.
2. Attend the entire webinar.
3. Complete the webinar survey.
4. The Texas Chapter ISA will then submit your CEU information to ISA for credit.

Register Now: Introduction to Entomology for Arborists Webinar (5 ISA/TDA CEUs)

What’s that bug and what is it doing to my tree?

Join Board Certified Entomologist, Molly Keck, for the Introduction to Entomology Webinar Series for Arborists. Over several noon meetings, you can gain a greater understanding of entomology, integrated pest management in the landscape and be able to identify common insect problems in the landscape. If you miss any sessions, don’t worry, you will be able to watch or rewatch them all later whenever you want at your convenience for 60 days.

This series provides a foundation to understanding insects. You will learn the basics of entomology. What is an insect versus other relatives? Who does the damage and in what part of their lifecycle? How do they feed? The series looks at specific species and delves into the specifics of where they lay eggs, the damage they cause, and what attracts them. The series ends with a look at Integrated Pest Management (IPM) of tree and landscape pests. By watching this webinar series, you will expand or reinforce your understanding of insects in the landscape. It provides a basis for understanding more in-depth presentations on emerald ash borers or other Insect problems.

TDA CEUs: Are you a certified pesticide applicator? You must attend all five sessions – either live or recorded (with a quiz) to get your five TDA AG CEUs.

ISA CEUs: If you watch a live webinar, ISAT will submit your information to ISA for your CEU (one per session). If you miss a session and want ISA CEUs – no problem, we will post the sessions as on-demand recorded webinars (see below) so you can rewatch then at any time – but you will have to take a short quiz to get your ISA CEU.

Webinar Series Schedule (5 ISA CEUs)

Session 1: March 17 – Pesticide Laws and Reg Update – This presentation reviewed Texas pesticide licensing, record keeping and inspection rules. It is now available on-demand so you can watch whenever you like. Presented by Laura Miller. Click here to register to watch the recording of Session 1

Session 2: March 31 – Ento 101 – Learn the basics of entomology and building blocks to understanding insects. What is an insect versus other relatives, types of mouthparts and their damage, lifecycle and who does the damage, and how insects fall into the grand scheme of living things. This presentation contains terminology and information important to understanding Ento 102. Presented by Molly Keck. Click here to register to watch the recording of Session 2

Session 3: April 7 – Ento 102 – Common Insect Orders of landscape insects and how to identify them in the field. Knowing who is doing the damage, their lifecycle, and how they feed is the main battle in understanding how to manage those pests. Presented by Molly Keck.   Click here to register to watch the recording of Session 3

Session 4: April 14 – Common Insects of Trees and Landscape Plants – Now that you know the orders, let’s look into specific species and delve into the specifics of where they lay eggs, what they are attracted to, what damage they do, and why they are found in the landscape. Presented by Molly Keck. Register here for Session 4

Session 5: April 21 – Integrated Pest Management of Tree and Landscape Pests – An integrated approach to pest management means using all available control tactics to bring pests to a tolerable level AND knowing which pests need treatment and what time. This saves you labor, costs, and is environmentally friendly. Learn how to manage common pests through cultural control, preventive measures, and chemical control options that are organic and traditional. Some pests do not require treatment – know when to spray and when to walk away! Presented by Molly Keck. Register here for Session 5

Sponsored by Tree Clinic Pharmacy

Pre-Recorded Webinars – Get your CEU’s on your schedule!

Couldn’t make it to the live session? Want to earn ISA CEUs? You can still watch it here.

1. Register for the webinar.
2. Watch the recording and take the quiz.
3. Score 80% or above on the quiz. (Take it as many times as needed!)
4. The Texas Chapter ISA will send your CEU information to the ISA for credit.

Watch Now: Texas Trees and the Blizzard of ‘21: What’s Next? (1 ISA CEU)

Click on the picture above to register and view
Free For ISAT Members – 1.5 Hours – 1 ISA CEU ($45)

If you are an ISAT member, you were invited to watch Dr. David Appel from Texas A&M University and a panel of long-time arborists from around Texas discuss the impact of the deep freeze of 2021 on Texas trees and plants. The panel discussed the science of freeze damage and shared their experiences with similar storms in the 1970’s and 1980’s. This webinar was recorded and now you can listen and learn about how to best care for trees after the big freeze of ’21. You must be a Texas Chapter ISA member to view this free webinar. (ISAT members can contact Misti Perez at for the Discount Code for free viewing)

Non-members: When you register for this webinar and pay your $45, you will automatically receive a discounted, one-year Texas Chapter ISA membership.

Click here for to watch the Texas Trees and the Blizzard of ’21 recorded webinar


Watch Now: Texas Tree Diagnosis Quiz Review Webinar (1 ISA CEU)

Click on the picture above to register and view
One-hour (one CEU) webinar ($20 fee)

Test and improve your Texas tree diagnosis skills!
View the free prerecorded diagnosis video quiz and then register for the live webinar quiz review session to earn up to two CEUs and become a better tree disease diagnostician.

Join Dr. David Appel and Sheila McBride for the online Tree Diagnosis Quiz Review. In this live webinar, they will review the answers to the Texas tree diagnosis video quiz (free and link below) and answer any diagnosis questions you may have.
Click here to register for the one-hour What’s Up Doc Tree Diagnosis Quiz Review with Dr. Appel and Sheila McBride (1 CEU) ($20)

Here is the free Texas tree diagnosis video quiz that Dr. Appel and Sheila will be reviewing – watch it and get and additional 1 ISA CEU!
Dr. Appel and Sheila re-imagined their What’s Up Doc tree disease sample quiz table and prepared a special prerecorded tree diagnosis video and quiz for you. Click here to register to watch the video quiz (55 minutes and it’s free) and if you take the online quiz here (27 questions) and get an 80% or above, we will send in your information to ISA so you receive one ISA CEU.
Here is a PDF version of the quiz.

NOTE: The tree disease samples covered in both the tree diagnosis video quiz and the online diagnosis quiz review next week are all described in more detail in the 2020 What’s Up Doc Texas Tree Diagnosis Academy Sessions A & B on-demand webinar videos that were recorded last November. You may want to watch these sessions (but it is not necessary) before you view the tree disease sample quiz video and attend the quiz review webinar.  If you would like to view the recordings of the 2020 Texas Tree Academy – Session A or B, you will find the links here.


Watch Now: Ask the Expert Webinar with Dr. David Appel (1 ISA CEU)

Click on the picture above to register and view
One-hour (one CEU) webinar ($20 fee)

As an arborist, one of the most common questions you are asked is: “What’s wrong with my tree?” Have you ever wished you had an expert at your elbow to help? Now you have that chance. Dr. David Appel answered diagnosis questions and talked about diagnostic procedures using real life scenarios that your peers sent in in this one-hour webinar.

Your Expert:
Dr. David N. Appel – Dr. Appel is a professor in the Department of Plant Pathology and Microbiology (PLPM) at Texas A&M University. Since coming to Texas A&M in 1981, his research program has focused on the epidemiology, diagnosis, and control of forest and shade trees, with an emphasis on the devastating oak wilt epidemic in Central Texas. Dr. Appel has more recently been studying the biology and control of wine grape diseases, and is involved with statewide surveys for sudden oak death and citrus greening. He has taught several graduate and undergraduate courses during his career and served in many administrative posts. He has received various awards from his department and professional societies for his accomplishments, but is most proud of the impact his work has had with arborists and grape growers.


Watch Now: The History of Oak Wilt Research in Texas Webinar with Gene Gehring

Click on the picture above to register and view
One-hour (one CEU) webinar ($20 fee)

Did you ever wonder when oak wilt was discovered in Texas? Who first described oak wilt symptoms? How we know how fast it moves and where we got our sampling, testing, trenching and injection protocols? Millions of Texas oaks have been killed in the battle with oak wilt and the history of our current understanding of this epidemic is a true scientific detective story. This webinar will show you how science has been used to reveal the secrets of oak wilt and how the work of dedicated scientists and practitioners has led to our latest understanding of oak wilt disease identification and management techniques.

Your Instructor:
Gene Gehring will present The History of Oak Wilt Research in Texas in this one-hour webinar presented by the Texas Chapter of the International Society of Arboriculture. Gene is an ISA Board Certified Master Arborist who has a B.S. in Urban Forestry, a M.S. Forest Pathology from Texas A&M and over 30 years of on the job experience with oak wilt in Texas. From oak wilt graduate student to coordinator of the Texas A&M Forest Service Oak Wilt Suppression Project to private consulting arborist, he has looked at, managed, and treated oak wilt almost everywhere it has been found in Texas.