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Detective Dendro®

Since its conception in 2004, Detective Dendro, the Diagnostic Sleuth, has been a highly popular printed series, with a regular feature in the Arborist News magazine. Now this educational and entertaining series is 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.

NameReleasedDescriptionAudio FileCEU Quiz
The Case of the Defiant Ficus April 07, 2017 Dendro and Codit trade the end of winter in North America for a trip south of the equator to help diagnose a blight spreading through the region’s favored ficus’. Can they spot the cause before fica ficus becomes a Brazilian memory? It’s the Case of the Defiant Ficus (Original story by Cláudia Coleoni)(A,M,Bp) Play

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The Case of Justin's Junipers February 10, 2017 Dendro and Codit take on a case that sounds like something from the “X-Files”; a bright orange blob of tentacles suddenly appearing on healthy trees in The Case of Justine’s Junipers (Original story by Sharon Lilly)(A,M,Bm) Play

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The Case of the Redwood Roots December 07, 2016 Dendro and Codit respond to distressed client blaming a destroyed concrete patio on a nearby redwood. Will the tree have to come out? Is a past drainage problem really to blame, will Codit ever finish washing Dendro’s car? These answers and more in The Case of the Redwood Roots. (Original story by James Komen) (A,M,Bp) Play

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The Case of the Eloquent Elephant October 07, 2016 Dendro and Codit travel across Europe and end up helping diagnose an aging giant in Sweden in the case of the Eloquent Elephant (A,M,Bm) Play

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The Case of the Plane Plan August 02, 2016 Dendro and Codit are across the pond at the UK’s Arboricultural Association’s annual conference when duty calls; a fungi is attacking London Plane trees, and local folks are up in arms. Can Dendro’s UK cohorts calm the masses and save the trees? It’s the case of the Plane Plan!(Original story by Sharon Lilly)(A,M,Bm) Play

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The Case of the Palm's Perilous Predicament June 08, 2016 Codit is left minding the phone on a trip to California, when a call puts him between a palm tree in a compromised planting box and an asphalt target zone. Will the intrepid side-kick figure it out? Will Dendro show up to save the day? Find out in the case of the palm’s perilous predicament.(Original story by Ellyn Shea)(A,M,Bm) Play

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The Case of the Ailing Avenues, Redux April 08, 2016 Dendro receives a letter from a veteran French arborist shedding light on a problem that has plagued his country for the better part of the last half century, and had interrupted a previous vacation for the deciduous duo. It’s the case of the Ailing Avenues, Redux. (Original story by Francis Maire)(A, M, Bm) Play

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The Case of the Perishing Pine 2016 February 02, 2016 Our intrepid interrogator of all things trees saddles up his bike to help a damsel in distress. A recent southern Belle transplant is mourning the sudden loss of a beloved pine tree. What could have caused the sudden decline? Join Detective Dendro in the Case of the Perishing Pine. (A,M,T,L,Bs) Play

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The Case of the Ailing Avenues December 04, 2015 Dendro and Codit head to the continent for some French onion soup and bird watching, but find themselves examining sycamore trees along a French canal. The beautifully pollarded specimens are showing signs of stress far beyond the dry conditions of the past summer. It’s a historical brain teaser in the case of the ailing avenues. (A,M,Bm) Play

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The Case of the Lamentable Maple October 06, 2015 The forest Codit grew up with is under attack! Is it the neighbor’s relentlessly tapping the maples for syrup? A nearby highway poisoning the trees? Can Detective Dendro solve the mystery in The Case of the Lamentable Maples?( (A, M, Bs) Play

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The Case of the Plane Truth August 14, 2015 Detective Dendro steps into a home owners association dispute in an attempt to identify the source of a rouge root pushing up patios. Is the street tree destined for the mulch pile? Find out in the Case of the Plane Truth. (A,M,Bp) Play

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The Case of the Torched Tips June 12, 2015 Detective Dendro takes a break from watching the best tree climbers at the ITCC competition, to find himself and Codit running in circles, trying to figure out what’s causing random die-back in an otherwise healthy live oak. Will the lab have the answer? Or will this mystery remain unsolved, stumping the great Dendro himself! Play

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