Detective Dendro®
80 episodes - English - Latest episode: about 6 years ago - ★★★★★ - 5 ratingsSince 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 [email protected].
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Episodes
The Case of Avocado Aficionado
June 08, 2018 00:00 - 11.1 MBAn assertive homeowner hopes his avocados will be the talk of the town, but the trees refuse to bear fruit. Detective Dendro is summoned to fix the problem. Will the solution be easy? (Original story by James Komen) (A,Bs)
The Case of the Rooftop Restaurant
April 13, 2018 00:00 - 13.3 MBDendro and Codit are called to West Los Angeles by a building manager charged with tending to eight declining olive trees that are the key feature of a 41st floor outdoor restaurant. Is it Xylella fastidiosa or something else? Will Dendro and Codit have a solution in The Case of the Rooftop Restaurant? (Original story by James Komen) (A,M,Bp)
The Case of the Mystery Driveway
February 02, 2018 00:00 - 12.4 MBDendro and Codit get a late Friday afternoon request. A new homeowner wants to know why his beautiful oak tree that was in pristine condition 6 months ago is now nearly dead. Dendro and Codit are on the case to figure out what caused the decline! (Original story by James Komen) (A,M,Bm)
The Case of the Quercus Calamity
December 01, 2017 00:00 - 13.1 MBDendro has been busy since the storm season started. For this case, Dendro and Codit investigate why a large oak tree failed and fell across a house. It’s the Case of the Quercus Calamity! (Original story by James Komen)(A,M,Bs)
The Case of the Deficient Palms
October 16, 2017 00:00 - 12.2 MBDendro finds himself once again on the hunt. In beautiful Oceanside, California, an allée of date palms are yellowing. It’s the Case of the Deficient Palms. (Original story by James Komen and Don Hodel)(A,T,M,L,Bs)
The Case of the Mysterious Sugar Maple
August 01, 2017 00:00 - 16 MBDendro and Codit are fresh off a week in D.C. at the annual ISA Conference and Trade Show when presented with a unique challenge; a pest targeting native as well as non-native trees, and even inanimate objects in the vicinity! It’s the Case of the Mysterious Sugar Maple. (Original story by Cláudia Coleoni)(A,M,Bs)
The Case of the Movie Star Trees
June 08, 2017 00:00 - 12.6 MBDendro and Codit are called out to assess a stand of trees once featured on the silver screen and now suffering from bad pruning. Will it be an Oscar moment for the two arborists, or just rotten tomatoes in the Case of the Movie Star Trees. (Original story by James Komen)(A,M,Bm)
The Case of the Defiant Ficus
April 07, 2017 00:00 - 13.5 MBDendro 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)
The Case of Justine's Junipers
February 10, 2017 00:00 - 10.8 MBDendro 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)
The Case of the Redwood Roots
December 07, 2016 00:00 - 9.01 MBDendro 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)
The Case of the Eloquent Elephant
October 07, 2016 00:00 - 16.5 MBDendro 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)
The Case of the Plane Plan
August 02, 2016 00:00 - 8.07 MBDendro 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)
The Case of the Palm's Perilous Predicament
June 08, 2016 00:00 - 10 MBCodit 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)
The Case of the Ailing Avenues, Redux
April 08, 2016 00:00 - 6 MBDendro 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)
The Case of the Perishing Pine 2016
February 02, 2016 00:00 - 9.82 MBOur 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)
The Case of the Ailing Avenues
December 04, 2015 00:00 - 20.8 MBDendro 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)
The Case of the Lamentable Maple
October 06, 2015 00:00 - 14.4 MBThe 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)
The Case of the Plane Truth
August 14, 2015 00:00 - 12.6 MBDetective 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)
The Case of the Torched Tips
June 12, 2015 00:00 - 17.6 MBDetective 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!
The Case of the Peculiar Pines
April 10, 2015 00:00 - 11.9 MBOn the way to the annual ISA conference and Trade Show Detective Dendro and Codit take a side trip to investigate an unknown culprit selectively targeting individual trees in a stand of pines. Will the intrepid investigators figure it out before more trees succumb? It’s the case of the peculiar pines! (A,U,T,M,L,Bs)
The Case of the Lonely Lashing Leader
February 13, 2015 00:00 - 20.1 MBDendro, Codit, and a team of international experts give an old red oak a thorough inspection with hopes of preserving the aging giant for the U.S. National Register of Big Trees. Will their findings save the historic tree a shot at immortality, or will the concerns of community neighbors mean the end for the acorn producer? Find out in The Case of the Lonely, Lashing Leader. (A,U,T,M,L,Bs)
The Case of the Lacebark Elm
January 09, 2015 00:00 - 11.6 MBDetective Dendro and Codit head back to the lone star state to follow up on an Elm tree slipping away while the trees around it thrive during a drought. Can the deciduous duo solve the puzzle and save the tree? Or are their efforts too little, too late?
The Case of the Frizzled Frond
December 12, 2014 00:00 - 17.2 MBCodit gets his big chance when Detective Dendro lets him take the lead investigating palms with withered fronds standing alongside other healthy palms of the same species. Can Codit make his mentor proud? Find out in the Case of the Frizzled Fronds.(A,U,T,M,L,Bs)
The Case of the Confounding Clues
November 14, 2014 00:00 - 16.4 MBDendro and Codit head to the east coast to help a Sugar Maple that was once saved from girdling roots but has suddenly gone into decline. What’s stressing the tree this time? Will the deciduous duo discover the cause before the local arborist pulls the plug? Can you unravel the mystery in the Case of the Confounding Clues? (A,U,T,M,L,Bs)
The Case of the Alder Alternative
October 10, 2014 00:00 - 16 MBWhat’s causing established Alders to suddenly drop their leaves? Could it be somehow tied to new plantings of Maple trees? Detective Dendro and Codit tackle a baffling case north of the border in the Case of the Alder Alternative. (A,U,T,M,L,Bs)
The Case of the Perplexing Palms
September 12, 2014 00:00 - 15.5 MBJoin Dectective Dendro and Codit as they interrupt their vacation to help a Pacific coast city arborist with a palm problem. What’s causing city palms to wilt, while private plantings thrive? Can you find the clues to solve the case of the perplexing palms?( (A,U,T,M,L,Bs)
The Case of the Fantastic Ficus
August 08, 2014 00:00 - 14.5 MBDetective Dendro and Codit find themselves in far flung Hong Kong helping a local arborist with restoration pruning following a storm. What they discover in the trees leaves them wondering about the balance of nature, and a tree’s ability to thrive.
The Case of the Curious Conifer
July 11, 2014 00:00 - 14 MBDetective Dendro and Codit race to save a neighborhood redwood apparently stressed by a hot summer and slated for removal. Will he solve the Case of the Curious Conifer before the chain saws start?
The Case of the Ionized Eyeful
June 13, 2014 00:00 - 8.77 MBDetective Dendro and Codit are at it again, trying to solve the confusing case of the chlorotic Quercuses. But what about that robust redcedar? Find out on this episode of Detective Dendro©.
The Case of the Courthouse Conundrum
May 09, 2014 00:00 - 14.7 MBDetective Dendro and Codit are called in for another mystery of the decidedly salt-damaged and declining maples, but the evidence seems to indicate otherwise. Listen as the two use their canine senses to sniff out the culprit on this episode of Detective Dendro©.
The Case of the Pestilent Procession
April 11, 2014 00:00 - 18.4 MBDendro and Codit are on the case again, trying to determine the feasibility of protecting a Quercus robur during construction. It doesn’t take long for Codit to need protection himself from whatever is causing the raging red rash on his festering face. Find out what Codit had a severe reaction to on this episode of Detective Dendro©.
The Case of the Perplexing Planes
March 14, 2014 00:00 - 9.14 MBDetective Dendro and Codit are at it again! Follow them on this adventure to British Columbia to determine why some London plane trees are afflicted with witch’s broom. Find out why on this episode of Detective Dendro®.
The Case of the Disheveled Michauxii
February 14, 2014 00:00 - 15 MBDetective Dendro and Codit discover three different species of oak from two different locations with one similar spiraling symptom. Can they determine what is causing the spiral bumps forming on these oak twigs? Find out on this episode of Detective Dendro®.
The Case of the Wilting Willow
January 10, 2014 00:00 - 15 MBDetective Dendro visits a heavily manicured yard with a weeping willow (Salix babylonica), exhibiting early leaf drop and minimal new twig growth. Can he figure out what’s causing the problem before the tree wilts away? Find out on this episode of Detective Dendro®.
The Case of the Poignant Picea
December 13, 2013 00:00 - 15.6 MBWhile hiking around Switzerland, Detective Dendro and Codit come across some Picea with broken branches and bewildering blue bark. Can Dendro and Codit determine why this forest of Picea abies is starting to deteriorate? Find out on this episode of Detective Dendro®. (Original story by Kate Leifheit and Guy Meilleur)
The Case of the Stubborn Streaks
November 08, 2013 00:00 - 16.8 MBCan suspicious black and brown streaks on the trunk of a Quercus falcate stump the savvy crew? Find out on this episode of Detective Dendro®. (Original story by Guy Meilleur)
The Case of the Mutilated Muehlenbergii
October 11, 2013 00:00 - 20.9 MBDendro takes a fall while cleaning his gutters. Can Codit fill Dendro’s shoes by completing a basic tree risk assessment on a mutilated Muehlenbergii? Find out on this episode of Detective Dendro®. (Original story by Guy Meilleur)
The Case of the Insidious Interceptor
September 13, 2013 00:00 - 18.2 MBMelissa marvels at the malicious masses that appear on her shagbark hickory (Carya ovata) and water oak (Quercus nigra). What is happening to her trees near the water? Find out on this episode of Detective Dendro®.
The Case of the Fantastic Fans
August 09, 2013 00:00 - 16.5 MBThe fallacious accusations for the faulty fans of Miss Fanny LaBranche’s lilac (Syringa) bush form some indignation. Can Codit and Detective Dendro figure out the real reason for the flippant growth. Find out on this episode of Detective Dendro®. (Original story by Nora Bryan)
The Case of the Lost Laurels
July 12, 2013 00:00 - 16 MBIn the lingering last minutes before the 2013 Olympic openings, Ru Trundiep receives a shady shipment of laurels that will be used to make wreaths for the winners. Will the Olympics be placed on a hiatus? Find out on this episode of Detective Dendro®. (Original story by Guy Meilleur)
The Case of the Detectable Decline
June 14, 2013 00:00 - 14.8 MBAn old oak (Quercus) shows dieback in the upper crown and excessive pollen and acorn production. Is this mangy meek appearance calling for the tree’s end? Find out on this episode of Detective Dendro®. (Original story by Guy Meilleur)
The Case of the Afflicted Ash
May 10, 2013 00:00 - 11.9 MBIs this a classic case of construction damage or is this crown dieback deceiving? Find out what is causing the city arborist, Ashley Green, to be up in arms for her ash trees (Fraxinus), on this episode of Detective Dendro®. (Original story by Wes Kocher)
The Case of the Damaged Diversity
April 11, 2013 00:00 - 16.5 MBA cargo mishap leads to an even more destructive dilemma: dozens of dead trees. Can Dendro relieve the distress on this dreary day? Find out on this episode of Detective Dendro®. (Original story by Don Spence)
The Case of the Blameless Abelha
March 08, 2013 00:00 - 16.2 MBMiss Abelha babbles about killer bees building a nest in her water oak tree (Quercus nigra). Can Detective Dendro courageously care for the Quercus without creating a crisis? (Original story by Agatha Gondim)
The Case of the Deathly Hollows
February 08, 2013 00:00 - 14.3 MBA tree from the 1840s with 83% hollowness still stands. Hasn’t this potentially hazardous haggard tree reached its lifespan limit? Why not remove the remains? Find out on this episode of Detective Dendro®. (Original story by Guy Meilleur)
The Case of the Multihued Maple
January 11, 2013 00:00 - 12.4 MBCan Dendro master the mystery of a multi-colored maple? Will Sal celebrate in saucy stardom for spotting a superior tree? Find out on this episode of Detective Dendro®. (Original story by Andrew Koeser)
The Case of the Fearsome Fossil
December 14, 2012 00:00 - 9.67 MBIt’s smelly, leaning, and drops fruit all over the ground. What niceties can a neighborhood find in a female Ginkgo (Ginkgo biloba)? Find out if Detective Dendro can sooth the sorrows and grievances of the town and convince them to keep this mature tree around. (Original story by Guy Meilleur)
The Case of the Flu-Stricken Foliage
November 09, 2012 00:00 - 7.6 MBMrs. Fields appeals to Detective Dendro to save her Norway maple (Acer platanoides) that was attacked by a brutal bug. Can Dendro catch the crooked culprit? Find out on this episode of Detective Dendro®. (Original story by John Lloyd)
The Case of the Rhode Island Root
October 12, 2012 00:00 - 16.8 MBJoin Detective Dendro as he puts on a different kind of detective hat to solve the disappearance of an arboreal artifact. What clues can history leave behind and what could it tell us about trees? Find out on this episode of Detective Dendro®. (Original story by Guy Meilleur)
The Case of the Bolts from the Blue
September 14, 2012 00:00 - 15 MBDendro dives into assessing and documenting a lightning-damage claim. Did this natural force completely devastate these trees? Will a removal be needed? Will the insurance company pay the costs associated? Find out on this episode of Detective Dendro®! (Original story by Guy Meilleur)