Online Learning

Detective Dendro®

Detective Dendro®

Since its conception in 2004, Detective Dendro, the Diagnostic Sleuth, has been a highly popular print series with a regular feature in Arborist News magazine. In 2010, this educational and entertaining series became available as one of our ArborPod™ series.

Join Detective Dendro as he uses his professional knowledge of tree science, expert diagnostic skills, and gut instincts of a “hard-boiled detective” to investigate and identify his clients’ biotic and abiotic tree disorders. Assisted by his young apprentice, Codit, they inspect a wide range of mysterious tree afflictions, dispel the “red herrings,” and uncover the signs and symptoms that lead them to accurately diagnose trees in a variety of exotic places.

If you have comments or a favorite topic in arboriculture that you would like to learn more about, please contact us at isa@isa-arbor.com.

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  Title Release Date    
The Case of Avocado Aficionado June 8, 2018 Listen Purchase Quiz
The Case of the Rooftop Restaurant April 13, 2018 Listen Purchase Quiz
The Case of the Mystery Driveway February 2, 2018 Listen Purchase Quiz
The Case of the Quercus Calamity December 1, 2017 Listen Purchase Quiz
The Case of the Deficient Palms October 16, 2017 Listen Purchase Quiz
The Case of the Mysterious Sugar Maple August 1, 2017 Listen Purchase Quiz
The Case of the Movie Star Trees June 8, 2017 Listen Purchase Quiz
The Case of the Defiant Ficus April 7, 2017 Listen Purchase Quiz
The Case of Justine's Junipers February 10, 2017 Listen Purchase Quiz
The Case of the Redwood Roots December 7, 2016 Listen Purchase Quiz
The Case of the Eloquent Elephant October 7, 2016 Listen Purchase Quiz
The Case of the Plane Plan August 2, 2016 Listen Purchase Quiz
The Case of the Palm's Perilous Predicament June 8, 2016 Listen Purchase Quiz
The Case of the Ailing Avenues, Redux April 8, 2016 Listen Purchase Quiz
The Case of the Perishing Pine 2016 February 2, 2016 Listen Purchase Quiz
The Case of the Ailing Avenues December 4, 2015 Listen Purchase Quiz
The Case of the Lamentable Maple October 6, 2015 Listen Purchase Quiz
The Case of the Plane Truth August 14, 2015 Listen Purchase Quiz
The Case of the Torched Tips June 12, 2015 Listen Purchase Quiz
The Case of the Peculiar Pines April 10, 2015 Listen Purchase Quiz
The Case of the Lonely Lashing Leader February 13, 2015 Listen Purchase Quiz
The Case of the Lacebark Elm January 9, 2015 Listen Purchase Quiz
The Case of the Frizzled Frond December 12, 2014 Listen Purchase Quiz
The Case of the Confounding Clues November 14, 2014 Listen Purchase Quiz
The Case of the Alder Alternative October 10, 2014 Listen Purchase Quiz
The Case of the Perplexing Palms September 12, 2014 Listen Purchase Quiz
The Case of the Fantastic Ficus August 8, 2014 Listen Purchase Quiz
The Case of the Curious Conifer July 11, 2014 Listen Purchase Quiz
The Case of the Ionized Eyeful June 13, 2014 Listen Purchase Quiz
The Case of the Courthouse Conundrum May 9, 2014 Listen Purchase Quiz
The Case of the Pestilent Procession April 11, 2014 Listen Purchase Quiz
The Case of the Perplexing Planes March 14, 2014 Listen Purchase Quiz
The Case of the Disheveled Michauxii February 14, 2014 Listen Purchase Quiz
The Case of the Wilting Willow January 10, 2014 Listen Purchase Quiz
The Case of the Poignant Picea December 13, 2013 Listen Purchase Quiz
The Case of the Stubborn Streaks November 8, 2013 Listen Purchase Quiz
The Case of the Mutilated Muehlenbergii October 11, 2013 Listen Purchase Quiz
The Case of the Insidious Interceptor September 13, 2013 Listen Purchase Quiz
The Case of the Fantastic Fans August 9, 2013 Listen Purchase Quiz
The Case of the Lost Laurels July 12, 2013 Listen Purchase Quiz
The Case of the Detectable Decline June 14, 2013 Listen Purchase Quiz
The Case of the Afflicted Ash May 10, 2013 Listen Purchase Quiz
The Case of the Damaged Diversity April 11, 2013 Listen Purchase Quiz
The Case of the Blameless Abelha March 8, 2013 Listen Purchase Quiz
The Case of the Deathly Hollows February 8, 2013 Listen Purchase Quiz
The Case of the Multihued Maple January 11, 2013 Listen Purchase Quiz
The Case of the Fearsome Fossil December 14, 2012 Listen Purchase Quiz
The Case of the Flu-Stricken Foliage November 9, 2012 Listen Purchase Quiz
The Case of the Rhode Island Root October 12, 2012 Listen Purchase Quiz
The Case of the Bolts from the Blue September 14, 2012 Listen Purchase Quiz
The Case of the Worrisome Wilt August 10, 2012 Listen Purchase Quiz
The Case of the Honeylocust Hex July 13, 2012 Listen Purchase Quiz
The Case of the Spurious Spikes June 8, 2012 Listen Purchase Quiz
The Case of the Suspicious Specks May 11, 2012 Listen Purchase Quiz
The Case of the Suffering Serotina April 13, 2012 Listen Purchase Quiz
The Case of the Detectivodendrus Doggus March 9, 2012 Listen Purchase Quiz
The Case of the Bewildered Bonsai Beneficiary February 10, 2012 Listen Purchase Quiz
The Case of the Bumpy Blackness January 13, 2012 Listen Purchase Quiz
The Case of the Frazzled Fronds December 9, 2011 Listen Purchase Quiz
The Case of the Wondrous Washboard November 11, 2011 Listen Purchase Quiz
The Case of the Fervent Fungus October 14, 2011 Listen Purchase Quiz
The Case of the Tearing Tilia September 8, 2011 Listen Purchase Quiz
The Case of the Fungus-Finding First-Grader August 12, 2011 Listen Purchase Quiz
The Case of the Arrested Araucaria July 7, 2011 Listen Purchase Quiz
The Case of the Battered Birch June 10, 2011 Listen Purchase Quiz
The Case of the Pungens in Peril May 13, 2011 Listen Purchase Quiz
The Case of the Terrible Tar April 8, 2011 Listen Purchase Quiz
The Case of the Charismatic Carya March 11, 2011 Listen Purchase Quiz
The Case of the Failing Fraxinus February 11, 2011 Listen Purchase Quiz
The Case of the Ill Illinoinenssis January 14, 2011 Listen Purchase Quiz
The Case of the Quercus Conundrum December 7, 2010 Listen Purchase Quiz
The Case of the Lascivious Lianas November 10, 2010 Listen Purchase Quiz
The Case of the Absolved Abelha October 8, 2010 Listen Purchase Quiz
The Case of the Languishing Leylands September 10, 2010 Listen Purchase Quiz
The Case of the Flagging Fruit Trees August 13, 2010 Listen Purchase Quiz
The Case of the Perishing Pines July 9, 2010 Listen Purchase Quiz
The Case of the Gratified Grandiflora June 10, 2010 Listen Purchase Quiz
The Case of the Waning Waxmyrtles May 13, 2010 Listen Purchase Quiz
The Case of the Sinister Stripper (Part 2) April 16, 2010 Listen Purchase Quiz
The Mystery of Detective Dendro and The Case of the Sinister Stripper (Part 1) April 9, 2010 Listen Purchase Quiz