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  • Writer's pictureAlonzo Perez

What the heck are Tree Growth Regulators?!- How can they help our trees in the urban environment.

Updated: Feb 17

As modern tree care solutions become more easily available to homeowners, we might be intrigued by how or what these treatments do for our tree, and how they work. After all, this might be the first time you hear about tree growth regulators. Lets check them out.


TGR application by soil injection

Tree Growth Regulators

Tree growth regulators act by inhibiting the production of gibberellins, hormones responsible for cell elongation and shoot growth. By regulating the tree's hormone levels, Tree growth regulators helps manage and control excessive growth, ensuring a more balanced and sustainable development.


Benefits of Tree growth regulators:


  1. Primary benefits: One of the primary benefits of Tree Growth Regulators is their ability to regulate tree growth. By slowing down shoot elongation and reducing excessive branching, Tree Growth Regulators help maintain a more compact and structurally sound tree canopy. This controlled growth promotes overall tree health, reduces the risk of breakage, and enhances aesthetic appeal.

  2. Improved Drought Tolerance: Tree Growth Regulators enhance a tree's ability to withstand drought conditions. By regulating growth and reducing water demand, they allow trees to allocate resources more efficiently during periods of limited water availability. This improved drought tolerance is particularly beneficial in regions with water restrictions or during dry spells.

  3. Enhanced Stress Resistance: Trees often face various environmental stresses, such as heat, pollution, and disease. Tree Growth Regulators aid in increasing a tree's resilience to these stressors by optimizing its physiological processes. By redirecting energy from excessive growth to defense mechanisms, trees treated with Tree Growth Regulators are better equipped to withstand adverse conditions and combat pests and diseases.

  4. Extended Life Expectancy: With their growth-regulating properties, Tree Growth Regulators can extend the life expectancy of trees. By managing growth and reducing the need for excessive pruning, trees treated with Tree Growth Regulators experience less stress and are less susceptible to diseases and pests. This prolongs their overall lifespan and preserves their ecological and aesthetic value.

  5. Cost Savings: Incorporating Tree Growth Regulators into a tree management program can lead to cost savings. By controlling growth and reducing the frequency of pruning and maintenance requirements, property owners save money. Additionally, the extended lifespan of trees treated with Tree Growth Regulators minimizes the need for tree replacement, resulting in long-term financial benefits.


"Are Tree Growth Regulators safe?"

Tree growth regulators are considered safe when used properly according to label instructions and under the guidance of trained professionals such as arborists or certified applicators.


Here at JP Tree Care, we utilize "Cambistat", as a tree growth regulator. Only certified arborists and certified applicators apply this treatment by soil injections around the trees fine absorbing roots. Meaning there is little to no above ground exposure.


Tree Growth Regulator treatment start at $149.


Tree Growth Regulators offer numerous benefits for your trees health and your wallet. From controlling growth and enhancing drought tolerance to improving stress resistance and extending tree lifespan. Less maintenance means less service calls and you still get to keep your tree. Tree Growth Regulators have become a valuable tool in arboriculture. By utilizing this innovative solution, arborists can ensure the long-term health, stability, and beauty of trees, contributing to a greener and more sustainable environment.


Additional Resources:






If you need professional assistance, or would like more info, contact us to schedule a consultation with our ISA Certified Arborist and discuss effective management solutions tailored to your trees' needs.






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