When is the Best Time to Consider a Growth Regulator for Your Landscape?

October 27, 2023
Sunny Crutchfield



Growth Regulator: In this episode of the Building Roots podcast with TreeNewal, host Wes is joined by Emmett Munich from ArborJet to discuss the fascinating topic of growth regulators, focusing on Paclobutrazol. Emmett explains how growth regulators work and their role in plant management. Unlike other plant healthcare methods that affect the external environment of trees, Paclobutrazol works internally, altering the tree’s physiology. The compound inhibits the growth hormone gibberellic acid, reducing cell elongation and internodal growth while maintaining the same number of leaves. This results in a more compact growth with smaller, darker, and denser green leaves.

The benefits of Paclobutrazol are diverse. They range from reducing pruning trips for line clearance companies and shrub management to improving tree health, drought management, and stress reduction. It can even be used for safety purposes and managing tree growth in limited spaces.

The application is typically done through soil drenching or injection, with caution needed to avoid overregulation and potential effects on nearby plants. The efficacy of Paclobutrazol varies across tree species, with red oaks and live oaks responding particularly well. The timing of application is important, as growth inhibition occurs the following spring when applied in fall, winter, or early spring, while summer applications show effects in the subsequent spring. Emmett emphasizes the importance of accurate dosing and encourages arborists and homeowners to consult experts for guidance.

Overall, Paclobutrazol is a versatile and underutilized tool in the plant healthcare toolbox. It offers numerous benefits for tree management and enhancing overall tree health and appearance.

Discover more reasons why working with an arborist can safeguard the future of your trees!

Why TreeNewal Certified Arborists are the #1 Choice for DFW Tree Doctors

How TreeNewal Certified Arborists Support Sustainable North Texas Communities

Are you looking for a sustainable Dallas-Fort Worth tree care company that prioritizes the health and longevity of your North Texas trees and landscapes? Look no further than TreeNewal, your trusted partner in tree care.

Our team of ISA Certified Arborists is dedicated to providing comprehensive tree services that ensure the vitality of your trees. From maintaining and reviving newly planted and established trees to diagnosing and treating tree diseases, fungi, and pests, we have you covered.

We specialize in proper tree diagnosis and offer tailored maintenance and treatment plans to keep your trees thriving. Our experts apply top-quality fertilizer and soil conditioning products to enhance tree health from the roots up.

At TreeNewal, we understand that many trees suffer from improper planting practices. That’s why we offer specialized techniques such as air spading, root collar excavation, and vertical mulching to improve the longevity of your trees. Our goal is to create sustainable landscapes that stand the test of time.

We also provide tree surveys and mitigation services to assist homeowners, developers, and commercial clients in meeting local city tree preservation requirements. With our expertise, you can ensure compliance while preserving the natural beauty of your surroundings.

Call TreeNewal today to schedule a consultation with our knowledgeable team. Let us be your partners in preserving the beauty and longevity of your beloved trees.

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