Bringing Certified Arborist Knowledge Straight to Kern County Homeowners
If you own a mature tree in Bakersfield, you already know it takes more than an occasional watering to keep it healthy. Heat, drought, pests, and disease all put pressure on the trees that shade our yards and line our streets. That is exactly why our team at General Tree Service, Inc. hosted “Leaf It to the Experts,” a tree and plant care workshop at Bakersfield College on February 18, 2026.
Our arborists, Robin Kim, Conway Lopez, and Jeff Fredricks, spent the session walking attendees through the same plant health care principles we use every day on properties across Kern County. Whether you made it to the workshop or you are catching up now, this recap covers the topics homeowners asked about most.

Why We Hold Community Tree Workshops
General Tree Service has served Bakersfield and the surrounding Kern County communities since 1945. Part of that commitment means sharing what our certified arborists know, not just applying it on job sites. A healthy urban tree canopy benefits everyone through shade, cleaner air, and stronger property values, and that only happens when property owners understand what their trees actually need.
What Is Plant Health Care, and Why Does It Matter?
One of the central topics at the workshop was Plant Health Care, often shortened to PHC. PHC is a proactive approach to tree and plant maintenance that focuses on keeping trees healthy before problems start, rather than reacting once damage has already occurred.
Treating a stressed tree early is almost always simpler and less expensive than removing and replacing one that has declined beyond saving. PHC combines several strategies, including proper watering practices, soil health improvements, targeted pest and disease management, and treatments delivered through methods like soil injection, foliar spray, or trunk injection depending on the issue.
Common Pests Kern County Trees Face
A large part of the workshop focused on the pests most likely to show up on local trees and palms. Attendees learned to watch for signs such as yellowing or dropping leaves, sticky honeydew residue, black sooty mold, and visible insects like aphids, scale, whiteflies, or bark beetles. Left unmanaged, pests like bark beetles and borers can attack even healthy, well watered trees, especially during periods of drought stress.
If you want a deeper look at what to watch for on your own property, we cover this in detail in our guide on how to protect your trees from pests.
Drought Care and Long Term Tree Resilience
Kern County summers are hard on trees, and drought was another major theme of the presentation. Our arborists shared best management practices for helping trees withstand heat and limited water, including proper mulching, tree well setup, soil amendments like biochar, and the use of moisture retention products.
We also discussed plant growth regulators, which can reduce a tree’s water demand by slowing top growth while encouraging a stronger, more fibrous root system. The result is often a tree that looks fuller, greener, and more resilient with less pruning and less stress overall.
Diseases and Invasive Species on the Radar
The workshop also covered several diseases and invasive pests that Kern County property owners should know about, including bacterial leaf scorch, fire blight, and canker diseases that affect a range of local species. Newer invasive threats like the emerald ash borer and spotted lanternfly were also discussed, since early detection is one of the best tools we have to protect trees before an infestation spreads.
For homeowners who want to stay current on emerging invasive species in California, the UC Riverside Center for Invasive Species Research is a great ongoing resource.
How This Connects Back to Your Property
Everything we presented at Bakersfield College ties directly into the plant health care work we do for homeowners and businesses throughout Kern County. If a workshop topic sounded familiar because you have noticed something similar in your own yard, that is worth a second look. You can learn more about how our team approaches diagnosis and treatment on our Tree and Plant Health Care services page.
Missed the Workshop? Here Is How To Catch Up
We put together a full presentation covering everything from tree mapping software to pine ghost canker case studies. You can view the complete workshop slides here: Leaf It to the Experts: Tree and Plant Care Workshop presentation.
Thank You, Bakersfield College
We want to thank Bakersfield College for hosting us and everyone who came out to ask questions, share concerns about their own trees, and learn a little more about what it takes to keep Kern County green. Events like this reflect what has kept us rooted in this community for over 80 years: honest guidance, hands on expertise, and a genuine investment in the health of the trees around us.
If your trees are showing any of the warning signs we covered, whether that is pest activity, drought stress, or a disease you cannot quite identify, our certified arborists are ready to help. Contact General Tree Service today for a free estimate and a plan built around what your property actually needs.








