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)

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)

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)

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)

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)

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)

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)

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)

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!

On 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)