The Certified Plant Diagnostician (CPD) is intended to recognize your skill and ability in diagnosing plant problems. It is not required to take the Certified Nursery Professional exam prior to the CPD.
“Pests of Landscape Trees & Shrubs” by Steve H. Dreistadt, and “A Systematic Approach to Diagnosing Plant Damage” by Green, Maloy and Capizzi are the official training manuals for Idaho’s advanced Certified Plant Diagnostician.
CPD Recipients
Certification Year & Year:
1999 David Higbee
1999 Debbie Hepworth
1999 Joe Carter
1999 Rebecca Gonzalez
1999 Gary Moen
1999 Mike Sandman
1999 Ed Hubbard
1999 Gerry Bates
1999 Julie Jacobson
1999 Robert Pitman
1999 Willy Birkholz
2000 Cindy Fry
2000 Janet McCrorey
2000 Kevin Lockie
2000 Kevin McCracken
2000 Vicki Laird
2002 Darlene McDonald
2002 Dwight Allen
2002 Sandra Reichert
2004 Matthew Perkins
2005 Julie Lafferty
2006 Brian Winn
2007 Al Young
2007 Robert Wilson
2009 Eric Celmer
2009 Steven Grigsby
2009 William Habblett III
2011 Vicki Dodd-Minder
2012 Mike Bauer
2013 Elizabeth Maxwell
2013
Jennifer Jensen
2013
Randy Valcarce
2014 Sue Patterson
2015 Barbara Romero
2015 Chris Summerhays
2015 Holly Lostra
2017 Heather LaRocco
2018 Zach Heffernan
2019 Sierra Laverty
2021 Carolyn Bingham
2023 Lindsey Facinelli
2025 Alexander Sprague