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MichaelPaula

  • black vine weevil
    November 10, 2025

    Using SPSD to Hone Your Diagnostic and Management Skills, Part 2

    By MICHAEL J. RAUPP, PH.D., AND PAULA M. SHREWSBURY, PH.D.

    In Part 1 of this article (TCI Magazine, October 2025), we introduced four foundational elements useful in diagnosing problems with trees and shrubs, represented by the acronym SPSD, and discussed the first “S,” which stands for “site,” and the “P,” [...]

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  • Diagnostic and Management Skills
    October 1, 2025

    Using SPSD to Hone Your Diagnostic and Management Skills, Part 1

    By MICHAEL J. RAUPP, PH.D., AND PAULA M. SHREWSBURY, PH.D.

    At TCI EXPO ’24 in Baltimore, Maryland, we conducted a Pre-Conference workshop entitled Plant Health Care Pathways. This tripartite workshop included sessions on honing diagnostic and management skills, tree nutrition and soil management and pruning by the ANSI 300 standard. [...]

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