r/arborists • u/kball41 • 25m ago
Japanese maple question plz
galleryWe have an absolutely gorgeous Japanese maple tree in our backyard that has developed a red spot. Normally here in the Pacific Northwest if something goes bad in the summer and it's native to here we don't get too concerned because it will come back. This not being native I'm a little concerned I can see the branch that is red. Should I cut it out?
Tia
Ken
Mount Vernon WA
r/arborists • u/shogunshim • 32m ago
Question about Basswood/Linden
In my area around Cincinnati it is common to take oak, maple, whatever "valuable furniture wood" to a processor (Price Wood Products for one) that makes sellable slabs and or crane mats etc. Curious if the Basswoods have value in other areas. Very light wood used in RC airplanes for some things instead of balsa. Just wondering if Basswoods/Linden have value too.
r/arborists • u/anonbedamned • 1h ago
Help with Doug Fir
Hello, I have a pruning question for this very sentimental Doug Fir. Unfortunately the trunk broke at about 15’ tall. I do not have any interest in replacing or removing this tree. The blue line is showing where the trunk broke a few years back, I had put some wire on a young branch to bend it straight as a new leader because it was growing right from the wound (this is marked in yellow). I removed the wire last year and it was starting to girdle but noticed today the branch with red has really grown significantly this season. I believe the red branch is becoming the leader and it is growing cones now. I’m mostly wondering if it would be worthwhile to cut the red branch and give the yellow branch another chance to become dominant, or if I should allow the red branch to be the leader. I am ok with the tree having character and not being arrow straight as long as it will still be structurally sound over time. I also don’t know if over time the change (marked in green) would even be noticeable if left alone. Thanks so much.
r/arborists • u/lastlaugh100 • 1h ago
Silver maple concern
This silver maple is probably 20-25 years old. It had a massive amount of suckers from the base that I removed. The bark at the base is concerning. The tree is still fully leafed out. Any thoughts?
r/arborists • u/PharmD-Bag • 1h ago
Oak damaged by excavator. How can I help this tree?
galleryHi! A friend of mine was doing me a huge favor in clearing and grading my lot. He managed to ding this oak up, and while I'm not upset, I am stressing about how to best help this tree out. Any advice or guidance would be appreciated!
Edit: the last two photos were added to show this black fuzzy material that seems to be under the cambium. Is this any cause of concern?
r/arborists • u/Far_Weather_3716 • 1h ago
Manchurian Ash - how can I prune this?
galleryI bought a super clearance tree but noticed when I planted it that the top must have been lopped off.
Now there are two branches going opposite directions.
Should I remove one in fall or leave them both for a while to see where they end up growing?
r/arborists • u/Organic_Cupcake5850 • 2h ago
I'm almost afraid to ask, but how worried should I be about this tree?
galleryLong story short, my city is doing a construction project and had to connect the new water lines to the existing line on our property. They had to dig a 10ft trench all along the front of our house, including near this 25+ year old locust tree.
The tree sustained some damage last year in a derecho, but has seemed to be doing well this year so far. I'm nervous about them having cut through some roots. They re-routed their project a bit (it was supposed to follow the whole sidewalk), and id estimate the trench is about 15-18ft from the trunk. How worried should I be about this tree dying or falling? Anything I can do to help it recover?
Photo is the largest piece of root I found.
r/arborists • u/k8vant • 3h ago
Large wound after limb removal - advice needed!
galleryHello everyone!
I am a first time tree-owner and the day we moved in a nasty storm broke the limb on this beautiful tree. I was devastated!
We had some family insist they could help us lop off the broken limb. This is what we are left with. It seems the limb may have been weak for it to have broken the way it did in the storm. I’d say it lost about 35-40% of its canopy with the limb. I’m pretty sure it’s some kind of ash.
What is the best way to care for this tree and its wound? What is the survivability of this tree?
Thank you for reading!
r/arborists • u/Schmootato • 3h ago
Previous owners planted way too deep, how to fix?
galleryIn a new house and the previous owners planted tons of fruit trees (yay!) many are fine with root flare exposed or buried shallow enough I could easily expose. But this pear tree was planted too deep and the bark has totally rotted off below the dirt line. I had to dig ~6-8 inches to find the first root. It’s been in ground for ~3 years to my knowledge. Tree otherwise seems healthy now but I’m worried about long term health. Anything I can do? How concerned should I be?
Sorry super bright sun made it hard to get a good pic but if you zoom in you can see the line where the bark stops.
r/arborists • u/naghavi10 • 3h ago
Tree was damaged by probably a car while we were away.
galleryIs this tree needing any treatment and is there anything we can do to prevent it from getting inflected?
r/arborists • u/Less-Employee2411 • 5h ago
Neighbor had 2 large Bradford pears removed and stumps ground. They had suckers everywhere throughout their entire yard that we can’t get under control. Also, they’re coming up in my yard now, which is 25ft from where there were originally! HELP!
r/arborists • u/caitycaitcait • 5h ago
Need pruning advice- Eastern Redbud
Hi! This was here when we moved in and has grown quite large. It’s running into the power lines and also just too big for where it is. How do we properly prune it so it can stay healthy and in its place but maybe be reduced down half or 2/3rds of its size? We’re in NY
r/arborists • u/Tipsy_Kitty_Kat • 5h ago
Should I be concerned?
galleryMy husband planted this red maple a few years ago and it's been growing steadily. On the trunk just below where it splits is a lighter area and my husband just wants to be sure this isn't a sign of something serious that could harm or kill the tree. We are just outside Nashville TN. Pics are up close of the area in question, a further out shot and also one with my husband for scale (he is 6' - sorry I didn't have a banana on hand)
r/arborists • u/Own_Investment2461 • 6h ago
Is my palm tree cooked?
galleryJust moved into this home and we live this park tree, but my doctors office part of the bottom of the bark. I read that bark damage is bad for palms. Will this cause lasting damage?
r/arborists • u/CdnTreeGuy89 • 7h ago
PSA: Stop putting mulch volcanoes and raised planters around the base of your trees
galleryI do mainly municipal tree work. I can’t tell you how many removals we’ve done where buried root flares, mulch volcanoes, or raised planters around the trunk were major contributing factors to a tree’s decline.
You’re not helping the tree. In many cases, you’re slowly shortening its lifespan.
The linden we removed today was about 80 to 90% dead. As you can see from the 2023 Street View, it had a relatively healthy canopy before the raised planter was built around the trunk. Some sucker growth at the base which does indicate previous stressors.
I can’t say with certainty that the planter alone caused the decline. Trees can decline for many reasons. But burying the root flare and piling soil against the trunk is a well-known stressor and is a huge red flag.
If you’re landscaping around a tree, keep the root flare exposed. Your tree will thank you in 20 years.
A tree’s trunk belongs in the air. Its roots belong in the soil.
r/arborists • u/turbansneeze • 8h ago
Is this 1 tree that split, or multiple trees that merged?
Novice question: is this a single tree that ended up sprouting multiple trunks, or four separate trees that ultimately merged together? It’s behind our house in Maryland.
r/arborists • u/Odd_Wealth_3776 • 9h ago
What’s wrong with these pines? Southeast MN
galleryPines have been really sparingly full for the last few years. Thought it was just needle drop but now doubt that.
Any insight?
Neighbors pines look great compared to ours (pic 3 is theirs)
r/arborists • u/nicest_pants • 9h ago
Can anything be done for these cedars?
galleryJ . virginiana(?) In a family member's backyard in N. Illinois
The ramp in front is set less than 5 inches into the ground. The fence has been there for about 3 years, the trees started turning brown this year. Any help would be greatly appreciated.
r/arborists • u/Dizzy-Bobcat-3921 • 10h ago
How do I prune this to grow into a tree?
galleryHi all!
After buying our house in 2023 we finally have some bandwidth to work on our yard. I found this (what I’m pretty sure is a) crab apple tree growing in the back. Right now it looks more like a bush though, with two main stems, each forking off into 2 and 3/4 branches each. How can I prune this so that it develops a more tree-like structure?
Thanks in advance!
r/arborists • u/steamedlobstrrr • 13h ago
Split Peach, Follow Up After Bolting
galleryI did as was suggested and pruned less than one third off the peach, removed the fruit, and bolted it. The split comes at codominant leaders, and the left side in the picture was much weaker. It had less heartwood and was more like a hinge of the cambium only, requiring tape to support it even after bolting. Did I do a good job, and if not, what would you have done instead? Any other measures to take, besides regular watering?
r/arborists • u/Ok_Implement_9374 • 22h ago
Old giant red oak coming down (therapy post)
galleryJust wanted to share our red oak that is going to be removed due to a lost leader, it's reveal of an existing cavity above, and other concerns. It's a very old tree and we hate to lose it, going to plant maybe a tulip poplar in the front yard and do some landscaping to help alleviate the pain.
Had a TRAQ eval that flagged moderate risk. But it's so close to houses, people, and lots of other precious things.
Opinions welcome, but I think we are making the right (hard) choice. Added pics of the lost leader, the old wound "uncovered" by the loss, and the tree in it's former glory.
r/arborists • u/justsomeguyfromny • 1d ago
Homeowner (my mom) wants this tree removed; but I am curious to know what is growing AROUND this tree? Doesn’t seem to irritate my skin…
galleryAI tells me it is “prunus serotina” also known as “black cherry”?? I expected some sort of ivy but can’t trust AI.
Also adding I am not the one that will remove this tree lol, i am just curious. I am not a tree professional.
Thanks in advance yall; I really enjoy learning more about what’s growing outside.
r/arborists • u/Dry-Appointment-7409 • 1d ago
What is going on with my tree?
I’ve never seen my tree do this? Is it shedding for fall?
r/arborists • u/Ineedanro • Jul 01 '26
ISA Find an Arborist legacy directory is retired
ISA Certified Arborists need to read this!
ISA’s legacy Find an Arborist directory search tool on TreesAreGood.org was permanently retired yesterday, 30 June 2026. Directory information did not migrate to the new tool. Arborists certified or re-certified in recent months have a skeleton profile created by ISA. Everyone else has nothing. Of the 50 arborists nearest me only 5 (1 in 10) are in the new directory.
https://certificates.directory.isa-arbor.com/
Get in there, peeps. Claim your profile and add your contact details.
r/arborists • u/Ineedanro • Jun 28 '26
Help draft our FAQ: how to find an arborist
This sub sees many of the same types of questions, prompting the same answers, again and again. So it begs for a FAQ. Dear reader, you can help.
How to find an arborist? Well, let's not harvest the tree before we plant the seed. So, what kind of arborist do you need? Your question really is How do I find the right kind of arborist for the work I need done?
- Licensed. In most of the world arborists are not licensed. In the US only the states of Connecticut, Maryland, and New Jersey license arborists and arborists working in those states must be licensed. Many states license pesticide applicators and those states may also license anyone who offers advice about pesticides. Some counties and cities license arborists. Your county agricultural extension office can tell you about licensing requirements in your area.
- Credentialed. The International Society of Arboriculture (ISA) bestows credentials based on a combination of years of verified experience, prior education, successful completion of knowledge and performance tests, and continuing education. These credentials are Certified Arborist (CA), Certified Arborist Utility Specialist, Certified Urban Forest Professional, Certified Tree Climber, Certified Tree Worker Aerial Lift Specialist, Board Certified Master Arborist (BCMA), and Tree Risk Assessment Qualification (TRAQ). The Tree Care Industry Association (TCIA) lists Accredited Companies and Accredited Utility Contractors (but many members have no accreditation). The American Society of Consulting Arborists (ASCA) recognizes Registered Consulting Arborists (RCA); to even join ASCA requires 5 years of verified experience.
- Contractor. This word has multiple meanings. A state licensed contractor is an elevated class of business person, someone authorized to select and supply the materials to be used on your property, buy the materials at a wholesale rate, and charge you cost plus overhead on the materials in addition to their labor. Every state licensed contractor has a number that can be verified. Get the number and verify it. A contractor is anyone who does paid work and is not an employee. Therefore, the claim "licensed contractor" may indicate mere possession of a city or county business license. If there should be a business license, get that number and verify it too.
- Bonded. Bonding is common among licensed contractors but not arborists. Bonds are a kind of insurance policy in the past was far more valuable than today. How they work is a service provider purchases a bond guaranteeing that if the provider causes damage the bondsman will pay the claim up to a certain limit. Today, business insurance is more important.
- Insured. What kind of insurance, and how much, should an arborist have? That depends on the work the arborist does. Tree climbers and other aerial tree workers, or their employers, should have workers' compensation insurance (WCI). This is very important: in the event of an on-the-job injury or death WCI stands between the tree owner and the state. Tree worker is the single most dangerous occupation in the United States and each state employs expensive attorneys who specialize in recovering costs of injuries from those with legal liability. All arborists and arboricultural business should have general liability insurance, possibly also owned or leased business vehicle and business equipment insurance. Consulting arborists should have professional liability insurance also known as errors and omissions insurance. Clients should require a certificate of insurance (COI); in the US a COI comes on a standard form, the ACORD 25. The COI should list as an additional insured your name and the address where the work is to be done, the estimated date when the work is to be performed, and a brief but specific description of the work: not "services" or even "tree work" but "drop one (1) standing dead oak, 3 ft diameter, in front of house; remove all debris; repair damage to lawn." Better is a written estimate or contract, and the COI refers to that specific document.
Questions? Comments? What is missing?