Middlebury’s Elm Collection

Among various tree geeks in New England Middlebury is well known for our Heritage Elm Collection. Elms, of course, naturally succomb to Dutch Elm Disease if we humans aren’t very proactive. We treat 28 old Elm trees, some of which are over 150 years old. I’ve written a couple new pages on them, one a general overview of all of the elms, one a brief primer on Dutch Elm disease and how we maintain the trees, and a final page on the history of the elm tree at Middlebury.


Elms have that classic umbrella shape, but can vary from specimen to specimen. We are fortunate to have trees in a wide variety of sizes and shapes, from the low spreading type like the Dog Elm behind Munroe (yes, we’ve named some of them), to the spectacular high and arching Field House elm. We also have been planting disease resistant varieties, such as Accolade Elm.

I remember a conversation with one of our seasonal employees several years ago, and we were discussing the difference between botany and horticulture. He cited the elm as a good example. Botanically, we will always have elm trees. They don’t die from Dutch elm disease until past their reproductive years, so they will always set seed and produce more young. And looking at them from a geological time perspective, eventually they will develop resistance, although that may be many millennia. Horticulture, though, is as much art as science, and as horticulturists we preserve some of the grandeur of an old elm, and we remember the dignity of the old shade tree as it was, even as we work towards bringing them back.

Arbor Day 2013

It’s been a gorgeous spring, and we’re celebrating with a huge Arbor Day celebration. Plan on joining us May 14th, details below. But in the meantime…

love a tree? share the love. send us photos, poems, and other art about your favorite campus tree. Submit a photo, or post on twitter with #middarborday. submit by may 10 to have your tree featured in the arbor day tree-k race! Either go twitter (@middland) or send to tparsons (at) middlebury.edu to submit. Prizes, fame, fortune, and good tree karma await. And the winning trees will become the basis of the second annual Tree-K race around campus (run 5-K,, and learn the names of 5 of the trees along the route to win) A kid’s race will be held as well. Winners receive gift certificates to the Grille.

The days events will be as follows:

Campus Tree Tour-join us for a walk around campus and learn about some of our woody friends. The tour starts at the McCullough Plaza at 2 PM, and wends its way through campus until about 3:30, when we will end up north of Battell Hall, where we-

Plant a Tree– a whole bunch of trees will be awaiting your tender loving care to be planted north of Battell Hall and in between Allen and Wright Theater. If you’ve never planted a tree this is something you should do-it will still be here for all of your reunions, like the rest of your old friends you’re eagerly awaiting to see. Afterwords, you can run or watch the-

Tree K Race-run about a 5-K loop around campus to all the various favorite trees nominated by the Middlebury campus community. Winners will receive prizes, and all kids will as well. Not too strenuous, as you’ll need to save strength for-

Food, music, and ice cream-We’ll be on the Atwater plaza, with a cookout by Grille Catering using local foods, ice cream, and listen to music by Will Cuneo and Rita Pfeiffer. Enjoy the sunshine for an hour or two before heading back inside to study for finals. A huge thank you to the Environmental Council for funding us!

So spread the word, let your neighbors know, and come celebrate our campus forest.

Vandalism Reward

Two  nights, three trees trashed. Once again, all around the Atwater dorms. More and more, I’m convinced that it is either one student, or a small group. As spring creeps along, the damage is getting worse. Based on the pattern of damage, I’m pretty sure the students(s) are in the senior class, and I worry about the end of the semester, in light of the increase of damage this spring. Will it get worse and worse closer to graduation? So I’ve had enough, and I’m going rogue.

A Ramunto’s Pizza, your choice of toppings, to the student or students that help me discover who is behind this. THIS IS NOT AN OFFICIAL MIDDLEBURY BLOG, and this reward is not sponsored by Middlebury College or Facilities Services. This is me, frustrated, saddened, and pretty pissed upset over the stupidity and sense of entitlement these vandals have.

Someone knows who they are. It’s a small community. And they don’t want to tell. I get that. Based on the violence exhibited, I don’t blame you. So email me (tparsons @), campus snail mail me, whatever. I will pass along tips to a detective in public safety, anonymously if you like, and we will figure this out. Heck, I’ll even throw in a batch of cookies my kids will make.

Don’t believe we have a problem? Read what I’ve written in the past, or read the excellent article the Middlebury Campus wrote a couple of weeks ago.

I can’t even begin to write about how much of a pleasure it is to work here, and how much pride both myself and the entire landscape department takes in the outdoor environment here at Middlebury. As I begin to take my oldest daughter to other schools, I’ve yet to see a college that even comes close to our little peice of the world here. I look at young trees, but in my mind I see mature trees, 50, 75, 150 years down the road. Think this campus is pretty now? Wait until your 50th reunion. We’re planting trees for your grandkids. Wouldn’t it be nice to have them around?

So I’ll cook dinner some Friday night, instead of getting take out, if that’s what it takes to stop this stupidity.

Broken Cedar on way to Atwater B

Broken Cedar on way to Atwater B

2013-04-04 13.53.55

Branches someone didn’t like on way to Atwater B

2013-04-05 07.49.47

One entire trunk of a clump birch twisted and torn apart, scarring the other two trunks, then thrown 30 feet away, outside Atwater A


Happy earth day everyone! Four nights, and two more trees pulled up out of the ground. One, right in front of Atwater B, had been pulled up last fall as well. We’d replanted and staked well, hoping it would live, and now saw both tree and stakes pulled up and out. Excessive damage to the rootball didn’t make the tree worth re-planting. Chalk up another mortality. The other was a Japanese Stewartia pulled up in front of Ross Dining, We replanted, and are hoping for the best.

The guys in the department are chipping in for two pizzas now. Whatever it takes. Don’t want to send a tip to me? Call public safety and make it anonymous. Try Middbeat or Middblog. Somebody. Anybody. This is your chance for 15 minutes of Lorax fame.

Accolade Elm killed in front of Atwater B

Accolade Elm killed in front of Atwater B

2013-04-22 08.29.48

Japanese Stewartia pulled out of ground

Pruning 101

Students that have taken my class will probably remember how disdainful I was about (well, lots of things, but in this case) books on pruning. They probably still line bookstore walls, but I avert my eyes fastidiously, so don’t quote me. Large tomes on pruning trees and shrubs, each plant type seeming its own chapter. How do I prune a lilac? A maple? A ninebark?
The books are worthless. A little plant biology under your belt, some tools, and we’ll have you all set to go in no time at all.


George Aiken famously said the best time to prune was “whenever the saw is sharp”. He’s close to correct. There is no bad time to prune, only better times. Most orchards are pruned in the winter. Why? Long winter, nice to get outside. We prune our shade trees on campus during the winter as well, and for the same reason. The only time I would not recommend pruning is early spring, as the buds are swelling and starting to pop open. Trees and shrubs are working so hard this time of year, pushing new growth without their leaves ready to replenish themselves by photosynthesis, so they are using all their stored energy, and could possibly be weaker and less able to recover from pruning. That being said, if that’s the time you’ve got, then so be it.The evil pruning books will also go on about timing, giving large charts about when to prune various flowering trees and shrubs. One rule of thumb will cover all that, though. Prune immediately after flowering. Spring flowering things, like lilacs and crabapples, have set their flower buds last year, so a winter pruning will cut them off before they had a chance to flower. Summer and fall shrubs will probably flower on new wood, so pruning them with the lilacs in June will probably cut those buds off as well. After flowering covers just about everything.


Anything you got that’s sharp will be just fine. I prefer Felco pruners (http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=felco+pruner) and Silky handsaws (http://www.sherrilltree.com/Professional-Gear/Silky-Saws) but this is what I do, so I’ll spend a little more on something that cuts well and will last. Try and avoid what are called Anvil pruners, the kind with the blade that stops on a flat piece of metal, as opposed to moving past the bottom piece (bypass pruners). The flat piece of metal crushes the live wood around the cut, possibly injuring the branch protection zone.
If you feel like you need rope to climb a tree, or a chainsaw to prune, back away slowly. You’re reading the wrong post. By all means don’t use a chainsaw on a ladder or in a tree. Spend some time on You Tube if you don’t believe me.


The hardest thing to explain is the necessity of a plan. Why are you pruning this plant? Is it in the way? Funny looking? Too tall? Most plants really don’t need to be pruned, we just think they do. Probably because we planted them in the wrong place, or they have a hazardous condition we would like to remedy. But before hacking away on the poor thing, you owe the plant a couple seconds of your time to stand back and make a plan. And step back often while pruning, checking yourself.
Starting in, remember the 3 D’s, Dead, Diseased, and Dumb. Start by pruning out all the dead wood from the plant. It’s dead, the plant doesn’t need it. (Maybe the ecosystem does, but that’s another blog post.) Also, this prevents you from making a bad mistake a little later on. I’ve pruned much live wood out of a tree to free up a beautiful branch in a direction and location I liked, to later find that branch was actually dead. Once you’ve gotten everything dead, start looking for diseased wood. Little white fishscale fungus, bark peeling away, there are all sorts of little clues that tells you that branch is probably on the way out and will join the ranks of deadwood shortly. Like truly dead wood, no sense to save it, or to count on it when pruning for structure.
2 D’s down, now the fun one. It won’t take a PhD in plant biology to recognize that plants aren’t the most intelligent creatures out there. Sometimes a branch will grow straight down. Cut it. Sometimes a branch will grow right into its neighbor. Cut it. Look for branches that are crossing, rubbing, growing in the wrong direction, growing parallel to one another, or anything else that just plain looks dumb, and get rid of it.
Now that you’ve gotten everything that shouldn’t be there, you can start to prune for structure. That’s a little more than an intro blog post will cover, but here’s a good start. For trees, read http://na.fs.fed.us/spfo/pubs/howtos/ht_prune/htprune-rev-2012-screen.pdf . Pay particular attention to the section on where to make a proper pruning cut. For shrubs, a good basic rule would be to remove any large woody stems-plants bloom and look better with young, vigorous wood. Like lilacs-every year I like to take out a stem or two that are larger than 2”, leaving the younger thinner ones. This has the advantage of keeping the plant a little smaller (so you can reach the blooms to cut them for a vase), a little less gangly, and a little more manageable.
Our department will be pruning trees in the library quad for the next month. Feel free to stop and ask questions.

Cultivating Hope, Wisdom, Compassion, and a Tree

Nature can teach us many things. Life, death, love. And Hope, Wisdom, and Compassion. How appropriate the 14th Dalai Lama uses ‘cultivating’, the act of promoting growth, to describe his wish for the dissemination of his main tenants for the human race to strive for.

Sogyal Rinpoche, the Buddist author of the Tibetan Book of Living and Dying, writes of trees:

Think of a tree. When you think of a tree, you tend to think of a distinctly defined object. But when you look at it more closely, you will see that it has no independent existence. When you contemplate it, you will find that it dissolves into an extremely subtle net of relationships that stretch across the universe. The rain that falls on its leaves, the wind that sways it, the soil that nourishes and sustains it all the seasons form part of the tree. As you think about the tree more and more you will discover that everything in the universe helps make the tree what it is; that it cannot be isolated from anything else and at every moment its nature is subtly changing.

A Bur Oak is planted next to the Garden of the Seasons just south of the main library, waiting to be blessed by His Holiness the Dalai Lama. Think about this tree, as it grows tall and wide, its roots spreading far across the quad joining its companions, and be reminded that like a tree, we all depend upon each other as well: we all share a subtle net of relationships. Let the small oak show our hope, our faith in growth and long life, as our grandchildren will see the large tree. And let it teach us wisdom, like the timeless ‘wise old oak’ of our childhood stories, and learn from it compassion, as no tree stands alone.

Bur Oak by the Garden of the Seasons

2011’s Tree Karma Score

Applying for certification for Tree Campus involves a very enjoyable day of taking stock of the previous year. They ask about tree plantings, removals, dollars spent, volunteer hours, and community service projects. During a terribly boring snowless winter, it was nice to sit down and revel in our accomplishments during the previous growing season.

2011 was a banner year for tree planting. With the Forest renovation, the CFA renovation, our normal tree planting program, and the Atwater Turf Battle construction, Middlebury planted nearly 100 trees on campus this year.

We’ve had to remove some too. Storms and hazard tree removals are the most common culprits, although occasionally construction takes it’s toll as well. (It’s this reason I get lots of input from many people before planting, including managers in Facilities and the Master Plan Implementation Committee.) This year 22 trees have been removed.

So our Tree Karma score for 2011 is a very healthy 4 1/2 trees planted for every one removed.

Informally we try to plant 2 trees for every one removed. Our six year karma average is 3.8 trees planted for each removed. I got asked the other day what my favorite trees planted this year were, and thought it was either the Arbor Day planting, the large trees planted around Ross Commons, or maybe the rare trees planted to the west of Munroe, including a Stewartia, a variegated Tulip tree, and a rare yellow Magnolia. Or maybe the disease resistant elm in Adirondack Circle. But how can I single out one child over another?

We’re planting this spring too, mostly locally grown trees, in various locations all over campus. There is a method to our madness, we don’t just randomly plunk trees down all willy-nilly. One example is this year’s Arbor Day planting, just north of Battell. That awkward little triangle of grass lets Battell Beach lose it’s structure on that corner, and the space of the beach bleeds into the quad in front of La Chateau. The trees planted there will form a wall of sorts, segregating two spaces, and probably extending the usable lounging space of the edge of the beach.

(Not making any sense, am I? The next good beach day, go look at where people are laying out on Battell Beach. The southeast corner, down by Forest hall, along the southern edge, near the Forest hall sidewalk and some pretty spectacular ash and beech trees, or along the base of the slope that heads up to Pearson hall. Think about all those spaces. Psycologically, they are all protected–your back is up against a building, or a line of trees, or a slope. The northeast corner, near Chateau? No wall, no back, just open space across the sidewalk. Almost no one sits there, preferring instead to be near the line of spruces on the north end of the beach.)

Other places trees get planted are near trees that are dying, albiet slowly. I don’t like removing trees, and it makes me feel better to know when I do remove a tree I’ve already got it’s replacement planted and well established nearby. Look for some new trees near the Davis Family Library for this reason.

And by all means, join us today at 1 to plant some more-north of Battell Hall. We’ll allow you to get dirty.

A New Class Tree

What we call a Class Tree on campus is a tree commemorating a graduated class, typically christened with a ceremony during reunion, such as on a 10th, 25th, or even greater. Our department was recently asked to pick a potential class tree for the upcoming reunion, and we’re more than happy to help. Traditionally we use a tree we’ve already planted in the recent past, and only ask that the class pay for the stone and plaque. This way we know the tree is already well established, so will live a good long time.

Trees connect us in many ways—through life, shade, a place to lean and sit under. Class trees are connected memories, bundles not of neurons and blood, but marking with rings and twigs the experiences of four years at Middlebury, a snapshot in time. Looking at class tree makes you think of your time in Middlebury, and your life during the time of that class.

Even before the discussion of where the tree would be and what type, I’d already picked one I thought would be perfect, and the request of having a Vermont Maple aligned perfectly. It’s a Sugar maple, grown by my good friend V.J. Comai at the South 40 nursery in Charlotte, and was planted 3 years ago.

My first summer here I was out in front of the Davis Family Library mapping the trees in the Library Quad. Collectively some of our oldest trees on campus, they are also the most stressed, with years of soil compaction wreaking havoc on fragile root systems. A professor came up to me, to this day I don’t know who, but he undoubtedly taught some of the students in this class. He asked what I was doing.

I explained how I was mapping trees, assessing health and measuring, and he asked if there were plans to plant more trees in this quad. I said most certainly, and showed him some of the weaker old trees nearby, and told him how it was much easier to remove a dying tree if the replacement tree was planted nearby and already well established. He then asked if I was going to keep the original line of trees, and fill some of the holes.

I had no idea what he was talking about. The trees in this quad are scattershot throughout, in random locations in between the uneven lawn shapes formed by the sidewalks. When the new library was constructed, many of the sidewalks were re-done in the library quad. At present, they are graceful swooping curves connecting the various destinations, such as Old Chapel, the library, Emma Willard, and Warner Science and Starr Library.

He points, and I look, and then finally see how many of the trees in the quad aren’t random, but demark a sidewalk long gone, connecting the south (front) door of Warner to the north (again front) door of what we now call Starr/Axinn. The old sugar maples lined the walk, and reading the landscape history, it was clear where some trees were removed, and needed to be replaced. The line is like a hidden Easter egg, a subtle reminder in the landscape of the past that many of us here don’t even know, a past the graduated class looking for a new tree took for granted as they walked on the now removed sidewalk from class to library.

I’ll be placing this plaque in the ground, looking down the row of trees, and thinking about what I was doing while these students were walking the long gone sidewalk. I was failing naptime in preschool.

My preschool was in a church basement, with a painted concrete floor reminiscent of the tile in the church upstairs, but harder, colder. Naptime means we bring out our blankets mom brought the first day of the year, and we place them out in neat rows, lay down for a half hour or so, and probably give the workers there a much needed break. My blanket had developed a hole, and my mom  brought it home the previous night, sewn a patch over, and hung it back up on the rack as she dropped me off.

I lay my blanket out on the floor. There’s the patch I’m seeing for the first time, a large, black, hairy spider right where the hole used to be.

Screaming, tears, running, and no nap. For anybody.


Become a Vermont Tree Steward

This comes to me from a friend of mine-a Kate Forrer, of the Vermont Urban and Community Forestry Program, UVM Extension. There are over 350 SOUL graduates throughout the state, and everyone I know that has taken it has loved it. Through Vermont Interactive Television the course can be taken in Middlebury, and Kate says if there is room at the site she will open it up to Middlebury students at no charge. I’d take it if I were you…


Don’t Delay- Register Now to Become A Vermont Tree Steward

Early Registration Deadline Extended until Friday, January 13th for statewide course 

Are you passionate about trees?

Do you want to learn more about them and how to care for them?

Do you want to make a difference in YOUR community?

Then you may be interested in the Stewardship of the Urban Landscape (SOUL) course offered by the Vermont Urban and Community Forestry Program. The course prepares participants to become stewards of the forest in which they live by covering topics from tree identification, biology and planting to resource assessment, landscape design and conservation planning.  Through a series of eight evening sessions, offered through Vermont Interactive Television and three Saturday hands-on sessions, participants will gain 40 hours of instruction and become part of an invaluable community forestry network. This educational opportunity is based on fifteen years of SOUL Tree Steward programs which has graduated more than 350 Vermonters!

Winter Course Dates: February 11 through May 12, 2012- including eight Wednesday evenings; 6pm-9pm, and three Saturdays: February 11th, March 10th and May 12th

Locations: Evening sessions offered via Vermont Interactive Television at the following sites: Bennington, Brattleboro, Johnson, Middlebury, Montpelier, Newport, Randolph, Rutland, St. Albans, White River Junction and Williston. Saturday sessions in nearby location. 

To Register: Visit http://www.uvm.edu/extension/environment/soul/

Questions: Contact Kate Forrer, Program Coordinator, via e-mail soul.treesteward@uvm.edu or call 1-866-860-1382.

Lightning 1, Spruce 0

Anyone around this summer, or past readers of this blog, will remember a large thunderstorm that ripped through Middlebury two days after Independence Day.  Several trees were struck by lightning, which I wrote about after the storm.

The largest tree struck was the Norway spruce in the Main Quad, one of the ones remaining after we removed part of the line. I wrote this summer how the tree was struck at the top, and exhibited a spiral shaped scar all the way down the trunk, exiting at the root flare. We didn’t know if the tree was going to make it or not, but had hopes.

It’s not the voltage that kills trees, but the water. Over 100 million volts strikes the tree, but it is the water heating quickly turning to explosive steam that causes failures. (Another blog post, on a lightning stuck Ginkgo, has much more detail) Damage in trees can be tricky, often with the worst of the damage unseen.

There was damage seen immediately. Long strips of bark went flying across the quad, and a scar opened up, spiral shaped, following the grain of the wood down the trunk. The high sap content of spruce makes it susceptible to such long scars.

I’d been worried about this tree all summer, and was watching it closely. All the limbs near the scar started to die, and the color of the remaining ones seemed a little off, but still green.

During a closer hazard evaluation this summer I discovered two things, one bad, the other worse. The first was the size of the scar, and while this shouldn’t have surprised me, it did.

The scar that formed in the summer seemed minimal. While very long, it only seemed an inch or so wide.

Scar in summer

The bark hid quite a bit of damage, and another small crack that wasn’t even open this summer showed another major wound. Peeling away at the wound showed extensive damage, much larger than we’d first thought. Overall, it seems about 1/3 of the sapwood (the live wood beneath the bark that conducts water and nutrients) around the trunk has died, severely compromising the tree.

I’ve seen trees limp along with scars like this for many years, most often in a forest setting. Trees in communities are connected in several ways, relying on each other for support and nutrients. They also tend to be the best trees for the site, adapted to soil and weather conditions. Trees in an urban or landscape setting are under more stress, either from a singular status in the landscape, more exposed to wind by themselves, or stress from poor soil conditions its genetics just can’t handle gracefully.

This fall was a good one for fungus, with cool moist conditions. The base of this spruce showed a colony of fungi following along one of the major roots of the tree. Later that same month the same fungus appeared following a different root. This indicates a root rot, a type of fungus eating away at the roots of the tree.

I’ve spoken with an arborist friend of mine who suggests immediate removal. He’s seen similar cases, where trees exhibiting root rot like this suffer from wind throw, heaving over in a storm. The clay soils of our quad make this species very susceptible to this, spruce not being a deep rooted tree to begin with, in clay soils even more so.

While I like this tree quite a bit, the chance this tree could suffer a catastophic failure in such a busy location on campus is too much of a chance to take. The remaining tree, the large Norway spruce with the interesting trunk, will remain.

Tree Removals 2011

Like most years, the landscape department takes advantage of the upcoming holiday break to do some tree removals. Not that we are doing anything under the cover of darkness-it’s more like we don’t want to break the solitude of campus with the cacaphony of chainsaws and tree chippers, not to mention the lack of stress we have when not having to do hazardous work with pedestrians walking around us.

Like last year, we’re working off of a hazardous tree list we’ve kept for several years now. Each year, the hazardous trees are inspected in the early fall, the best time to observe stress in the plant. We’re getting toward the end of the list of hazards that must be removed, as this year we’ve selected 6 trees that for reasons described below must be removed.

Actually, 7 trees, but one is sad and important enough to warrant it’s own post later in the week.

The first tree on the list is a big one, a Norway maple north of Starr/Axinn. Like I’ve written previously, this tree is held together by a web of cables up in the crown, two complete systems. The first set is a group of three cables holding the main scaffolds together, and the second set is a complete ring around the canopy. Like we’ve seen in the Black Willow that failed by Battell, failure of one of these limbs can compromise the rest of the cable system, and lead to total failure. For this reason cable systems should be inspected yearly, preferably whilst up in the crown of the tree.

This tree has been declining in health for the past several years.. Notice the greatly thinning canopy in the following pictures, with the interval between last year and this being by far the greatest loss.

Canopy fall 2006

Canopy fall 2010

Canopy fall 2011

The cabling systems were originally installed to protect against failure in the main trunk. Norway maples, though, have a life span, one that is quite a bit shorter than I’d thought, and this tree has reached the end of it’s life. Over 75% of the crown was dead wood, with hollow scaffold branches held up only by cable. Most worrisome was the appearance of several types of fungi, indicating rotten wood both in the trunk and in the root system. While I hate to see such a large tree go, we can’t risk failure in an area so heavily trafficked.

The next tree on the list is another large one, a Silver maple by the Davis Family Library.

Silver maples are poor compartmentalizers, meaning any wounds they suffer sit and rot, further decay going up the stem and into the trunk. This tree has a major defect at the attachment of the main scaffolds, and hollow limbs on two of them. This tree had a hanging branch several years ago, and I climbed up there on rope to remove it. After ascending, I noticed the branch I was tied into was completely hollow, an empty tube the length of the branch. I didn’t stay up long.

After any major windstorm I would always look towards this tree on my drive into work to see if it was still standing. The crack shown above has opened up in the last year.

Another Norway maple in need of removal is next to Centeno, another Norway at the end of it’s life. This tree, like the other, has poor scaffold attachments at the base, and suffers from major cavities with rot. The crown has also suffered major decline in the preceding year, losing much of it’s foliage.

Centeno maple 2010

Centeno Norway 2011

The rot in the trunk holds water, and is actually deep, over 1 foot. Note how, typical of Norways, much of the leaf surface is on the ends of the branch, and therefore much of the weight is as well. This raises a red flag, as high wind events cantilever the branch, with the foliage acting like a sail.

At the top of the stairs leading to the east side of Gifford is a Black Cherry tree, leaning towards the stairs and a nearby light pole.

Lean in a tree towards a target is always troublesome, or at the least worthy of a second, closer look. This tree suffers from a cavity at the root flare in the direction of the lean, indicating a weakened or even missing root system in the potential failure direction.

The last two trees on this removal list are both Sugar maples, which, given the percentage of Sugars on campus, is hardly surprising. The first tree doesn’t really have an obvious cause of death, but is nearly dead nonetheless. It’s located up at the tailgate area, near Route 30.

The final sugar to remove is located up by Hepburn, and to be honest I didn’t really want to see this one go.  In fact, it probably should have been removed several years ago, when its defect was first noticed. Students in my winter term class will recognize it, and the tree is prominent in all of my tree tours. Rarely do you see such a concrete example of girdling roots causing an untimely death.

Nobody ever said trees were terribly intellegent. This tree grew several roots that wrapped around the root flare, so as they grew the tree was slowly strangling itself.

Water couldn’t go up the trunk, nor nutrients down. It showed all the classic symptoms of root girdling over the last several years. First the top started to die back, as the very upper reaches of the tree starved. Next the side of the tree with the girdling died back, followed by major sections of the trunk. Finally the entire tree itself starved as it tried to reprioritize, but without sufficent water and nutrient flow just couldn’t retrench to live out its final days the way many mature trees do.

I’m compiling our Tree Karma score for this year as part of our Tree Campus re-application, but am fairly confident we’ve planted many, many more trees than we’ve removed, even with all the freak storms this summer. Feel free to contact me with further questions or concerns you may have.