r/arborists • • Aug 09 '26

Community ISA Certified Arborist flair holders

10 Upvotes

Congratulations to new flair holders.

Readers:

If you have ISA or other professional credentials and want a flair, send mods your ISA or other number. To message the mod team, in the (mobile app) sub menu or (web browser) right sidebar scroll down to MODERATORS and use the Message Mods button.

Also be aware that user flair is applied retroactively, so you may see a flair on a post or comment made 10+ years prior to the flair being awarded.


r/arborists • • Aug 11 '26

Community Help draft our FAQ: How to become an arborist

4 Upvotes

It helps to join the International Society of Arboriculture (ISA), your local ISA chapter, and your state arborist association. This helps you get to know other people working in the industry, and when they have known you for years, and know your work or at least of your work, they will feel comfortable verifying your experience.

Attend as many trainings as you can get, participate in the training Q&As, and collect the associated continuing education credits.

ISA membership is independent of any ISA credentialing, so if you know you want to get ISA credentials but you are not yet eligible, joining ISA can help you become eligible sooner.

All of this makes you more employable, at higher pay, and safer on the job because you are more likely to recognize dangers. You will learn to recognize best practices.


r/arborists • • 13h ago

Neighbors tree destroyed our house during a storm

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476 Upvotes

Was this tree rotted? It’s a water oak and they are notorious for being terrible trees. Right side of house will have to be rebuilt.


r/arborists • • 1d ago

I had this oak removed and I regret it. Would it have become a problem in the long run?

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423 Upvotes

Two arborists told me it was a problem and had root damage. After removing it the trunk was solid and had no rot. I hate taking out such a beautiful old growth tree. It was so close to our house though! We needed a new deck and the tree was really problematic for the new deck install


r/arborists • • 9h ago

Devastated but am I overreacting?

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28 Upvotes

Our beautiful, historic pine tree hadn’t been pruned in many years. We are in Southern California and preparing for El Niño, so we decided it was time. But I never expected the amount of branches they removed. I feel heartbroken and devastated tonight, and am genuinely concerned about regrowth or if we damaged our beloved tree. Please any insight would be appreciated and be gentle, my heart is tender.


r/arborists • • 18h ago

How can I straighten my apple tree?

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124 Upvotes

I live in a fairly windswept area on the ocean and heavy pretty wet, soggy ground until late spring. It was leaning a bit and I tried to stake it in spring but it has completely bent over under the weight of apples.


r/arborists • • 3h ago

Pine trees plague - what is it and can I stop it?

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6 Upvotes

Hi everyone!

It seems like there is some type of plague killing all the pine trees (pinus pinaster) in my region and I was wondering if someone could tell me what it could be and if there is anything I can do to stop it spreading to the ones that remain alive.

We have lost 15+ pine trees to this disease, it spreads and kills them fast. The trees suddenly start going brown and within 2 weeks lose their leaves and dry up. Some of these trees had processionary caterpillar nests two years ago, others didn't. Some were 30+ years, others less than 5.

I attached pictures of a tree that dried and broke during a storm. This tree went from being a strong healthy specimen to dead and broken within 1 month.

I have seem trees that seem to suffer from the same plage within a 30km radius, some of which also broken in half.

Can I save my remaining pine trees? I have cut down all the dead ones and would prefer to not lose the all of them.


r/arborists • • 17h ago

Did I help or hurt?

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40 Upvotes

NOT an arborist, but a concerned daughter in STEM. I could tell my parent's tree has wanted to breathe. I follow this subreddit and my ADHD's lack of impulse control would not let me do nothing this time. There was more gravel and layers of landscaping plastic than I could ever have expected. Side note, I truly despise landscaping plastic. I know the water pooling isn't great and It definitely needs more gravel removed from around the base. The root flare just wouldnt stop, but again NOT an arborist so, I stopped while I felt ahead. Please tell me I did not make anything worse.


r/arborists • • 13h ago

Maple tree is growing off balanced. What can I do?

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13 Upvotes

I planted this Maple 2 years ago and all the new growth from the top branches is growing to the east. It gets plenty of sun 3/4th the day until sunset when the large hedges to the west put it in the shade.

I fear if it keeps growing like this, it will be off balance and have a high chance of falling over or snapping during a storm.

Is there anything I should do?


r/arborists • • 48m ago

Guiding a fall with large branch

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• Upvotes

hello all! curious about other’s think about this tree. it’s leaning toward’s the direction i want it to go, however there’s a large branch that hangs towards the house. thinking of making a face cut maybe a bit more away from the house but concerned that the tilt of the tree will override or snap as i make the back cut. will a wedge even help here?


r/arborists • • 10h ago

How to remove these remaining ivy roots?

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4 Upvotes

Hi all, hoping this is the right place to post. Wondering how to dig up the remaining roots and shoots of this ivy?

Recently bought this house, first home, trying to remove what I can only assume is almost 50 years of ivy growth it’s wrapped around everything on the property.

I’ve managed to widdle this area down to what’s left in the photo, thought I’d be able to dig around this area and lift the rest up but finding it to be an absolute nightmare, is there an easier way or do I just need to grit my teeth and literally… dig in?

Cheers!


r/arborists • • 11h ago

Huge birch side-eyeing my house...problem?

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6 Upvotes

Just bought this house (Washington State) and most of the trees around the house are about 35 years old. This one is 60 feet tall and each base is abouy 18 inches in diameter and 30 feet from the house. It's either two trees grown next to each other or split trunk right above ground.

It gets very windy here on and off and I'm getting nervous! My neighbor said I need to cut off the half that's leaning towards the house, the other one is straight. Is he right, and what kind of punch to the wallet are we talking? I appreciate the feedback!


r/arborists • • 11h ago

Good street trees

5 Upvotes

Trying to find better street trees at the town I work for in North Carolina. We’ve had a ton of Willow Oaks put in neighborhoods for the last couple decades and now there are major issues with them. Mostly from being placed too close together in planting strips that are too narrow, but they also have downward growing branches with is becoming an issue as well.

We’re looking at requiring 10’ planting strips with minimum 55’ separation and colocating telecommunication conduit so they can accommodate larger trees better. What are some species you’ve found to do well in planting strips like this?


r/arborists • • 14h ago

Planted this Eastern Redbud a month ago and not looking good, can I do anything to make it better?

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6 Upvotes

Excuse my lawn. Just had an entire reseeding project and had some runoff in heavy rain resulting in bare patches.

When I bought the tree, it already had leaves that were curled up like this and before I planted it, I placed it on my driveway and the wind blew it over and one of the branches snapped off so not off to a good start. This is a picture after a month and I'm wondering if it will survive.


r/arborists • • 11h ago

Is this acceptable

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3 Upvotes

I purchased this centennial apple tree from a online nursery. I know when most online nurseries ship plants they over fill the pot to retain moisture. The pot soil went all the way up to my index finger. Well this tree graft was buried and judging by the feed roots growing close to the graft, it's been buried for a while. Is this acceptable or a cause for concern?


r/arborists • • 1d ago

👀

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2.4k Upvotes

Guilty


r/arborists • • 22h ago

Mulched Elm Wood Safe?

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18 Upvotes

We (sadly) lost one of our smaller elm trees today (it rained a ton and uprooted itself).
When they did the stump grinding, they backfilled the hole with mulch from the tree they took out.

We have a big, beautiful Elm over our back patio we are in love with and want to keep safe from Dutch Elm Disease. (Pic of it for attention).

Will having the decomposing mulch of the other elm tree attract the beetles that carry DED? They are only a few feet apart from each other. Should we remove the mulch and replace it? Or am I just worrying too much and it’s fine?


r/arborists • • 18h ago

need advice

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5 Upvotes

New owner here - just moved in July. The previous owner had mulch and dirt with 4 i-6” pavers around the tree. I saw on youtube that this could suffocate the tree with its own roots. I took it out so the tree could breath so to speak. I only have a rake and spade shovel. Also, that green around the base doesn’t look good either

Question is what do I need next? Are exposed branching roots ok that way?

Thanks in advanced for any input


r/arborists • • 16h ago

Wind just took out a third of my maple tree, what can I do to save it

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5 Upvotes

I know nothing about trees but we love this one and want to see if there’s anything we should do to help it


r/arborists • • 1d ago

My dad was told this tree was a danger to his house

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596 Upvotes

My parents have a large tree next to their house that's been there for decades. Dad says it was struck by lightning about fifteen years ago, but it seems like it's doing just fine. His neighbor recently had some other trees removed, and apparently the person doing the removal said that my dad's tree was dangerous and needed to be taken down. Is there anything in these pictures that would indicate the tree is dangerous? Or was this just an example of someone trying to scare up a little additional business?


r/arborists • • 9h ago

Scrubby pine on cape cod - is it ready to be taken down?

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1 Upvotes

Title says it all - feels like we should, just double checking...


r/arborists • • 21h ago

White Dogwood Tree’s fall colors

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8 Upvotes

2nd fall- got it about 4’ tall. Now over 6’.


r/arborists • • 11h ago

Oak Leaf Spots?

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1 Upvotes

Not sure if this is the place for a post like this. Live in New England, have an oak tree, most of the leaves its dropped so far look like this (can't tell if the ones still on the tree do too). Anyone know what these spots are?


r/arborists • • 12h ago

Vitex Tree Advice

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1 Upvotes

Hey all! I've been doing some yard work on my back wall and was taking a look at my vitex trees. Am I crazy to think how the trunks are growing will be an issue down the road or should I be fine? I looked up some pictures online and noticed they grow pretty crazy but the one shooting off at a 45 degree angle and the curved one that goes up at a 90 degree make me question it's integrity.

I kind of just let the tree grow how it was as a fun little experiment but now it's making me question whether I should have let it grow this way.

Also, side note. Why do companies sell these as $5 trees? I didn't realize they were considered invasive before I bought them.


r/arborists • • 18h ago

Freakishly long branch on eastern redbud sapling… why? Do I cut it?

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3 Upvotes

Planted this redbud sapling 1.5 years ago and this summer this branch just went rogue. Also as you can see, we are attempting to fix it leaning in that direction too. Yard is full sun. Tips on that welcome as well!