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Plant Health Care Strategies

  • Soil Testing for Tree Health
    February 1, 2025

    Foliar and Soil Testing for Tree Health: How to Get Started

    By ZACH SHIER, BCMA

    Soil and foliar sampling are not exactly a new science, nor are they new ideas in the world of arboriculture. However, it is my opinion that they are still underutilized or underemphasized in the field. As practicing arborists, we [...]

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  • Oak trees and Herbicides
    February 1, 2025

    Oaks and Herbicide … a Bad Combination

    By SCOTT CARLSON, BCMA

    Life is what happens when you are busy making other plans. We have all heard it. I believe it. I am an aging arborist in Iowa. Like a lot of us seasoned “tree guys,” I have followed a familiar [...]

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  • Structural Defects in Trees
    February 2, 2025

    Factors & Forces: Identification of Structural Defects in Trees for Implementing Safe Work Plans

    By ROBERT J. LAVERNE, PH.D.; ALEX JULIUS, BCMA; AND TIM BUSHNELL, CTSP

    Climbing arborists and tree workers rely on the structural strength and stability of a tree’s branches, trunk and roots to support their weight and the forces associated with rigging operations. Failure of tree parts can result in uncontrolled falling [...]

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  • Tree Stress Tree Risk Tree Hollowing
    February 1, 2025

    Thoughts on Tree Stress vs. Tree Risk, and Tree Hollowing

    By Jeremiah_Sandler, BCMA

    Photo 1: Removing a tarp from beneath the mulch below a struggling pine to reduce stress and increase water to the soil. All photos courtesy of the author. I’ve had a number of consultations in Pleasant Ridge, [...]

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  • Dieback, as shown here, is one of the most telling symptoms of tree decline, almost always indicating a soil or root problem. Sometimes this is referred to as stag horning. Photo courtesy of the author.
    December 9, 2024

    Observational Forensics of Sick Shade Trees

    By W. JIM CORTESE, BCMA

    Dieback, as shown here, is one of the most telling symptoms of tree decline, almost always indicating a soil or root problem. Sometimes this is referred to as stag horning. Photo courtesy of the author. Many years ago, [...]

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