Disappearing Ash Trees

Disappearing Ash Trees

Ash trees are fast disappearing from American forests and towns. It’s tragic.

There are several ash species, including white, green, blue, and black. A Chinese native insect, the Emerald Ash Borer, is killing them all quickly. It’s awful.

Years ago, Dutch Elm Disease cleared cities of American elms, and many homeowners and towns planted green and white ash trees to replace them. Ashes, in general, thrive in the woods and towns. They grow relatively quickly, resist storm damage, and are beautiful. They seemed like an ideal urban tree.

That was true until Emerald Ash Borers were found in Michigan in 2002, although they may have been around at least a decade earlier. Since then, the insect has spread like crazy, killing ashes radiating outward from Michigan.

They reached Iowa years later and have since killed most of the trees in Cedar Rapids, area woodlands, and many other towns.

Salvaging Ash trees

Rich salvages wood from a scrap pile of used pallets. Pallets are made from cheap wood, like cottonwood, poplar, and hackberry, but now he’s finding ones made of ash.

Loggers are salvaging dead and dying ash trees, and the wood is cheap, at least for now. Soon ash lumber will no longer exist.

A Versatile Wood

Sports fans will miss ash wood. It makes the best baseball bats and has been used for gymnastic bars.

Ash also is crafted into gorgeous furniture.

We lost our big ash tree in the August 2020 derecho, but it was already infested with borers with its days numbered. Sadly, we cut the tree up but gave it a second task. It harvested solar energy and used it to make wood. That wood is now being fed, piece by piece, into our woodstove. It’s keeping our home warm, but we’d rather have our tree.

SQUIRRELS GET THE TREES PLANTED

Squirrels: Free Tree Planters

Our neighborhood squirrels proved they are the best tree planters.

fallen trees after 202 Derecho

We lost most of our mature trees in the 2020 Derecho.

An August 2020 derecho tore through Iowa pushing 140-mile-an-hour wind against trees and buildings. Trees by the hundreds of thousands tumbled to the ground. Winding Pathways wasn’t spared. We lost most of our firs, oaks, hickories, and cottonwoods. The devastation in nearby Faulkes Heritage Woods was even worse.

Almost immediately, shocked people took action. Government forestry departments, aided by tree planting nonprofits, and private citizens unleashed their shovels and planted thousands of trees. So did the squirrels. Well, not really. People planted trees.

 

Squirrel eating nut

Squirrels bury nuts in caches to retrieve them later.

Squirrels planted nuts and acorns.

Then three seasons of drought followed. Once planted, most trees were not tended as they need to be. So, many human-planted trees shriveled in the heat and dryness, while the nuts buried by squirrels sprouted and the new trees were flourishing.

But why?

We have theories.  A human-planted tree seedling needs plenty of moisture to keep its trunk and new leaves hydrated. Sparse roots must pull water from the ground and send it upward. That’s a tough job in a wet year. Come drought it’s nearly impossible.

Squirrels did better. These industrious rodents don’t mean to create new trees. They’re simply storing nuts underground so they have enough fat and protein-rich food to tide them through winter. All they need to do is dig up a nut when hunger calls. Squirrels overfill their larder, burying more tasty nuts than they’ll ever need.  Unfortunate squirrels are eaten by hawks, foxes, owls, or humans, but the nuts they’d buried remain patiently waiting for spring’s warmth to germinate.

Sprouting nuts grow roots able to pull scarce moisture from the soil and send it to new baby leaves poking through the ground.

As we walked through July 2023’s dry woods we sadly see human-planted trees shriveled up and dead, while nearby a new generation of tiny walnut, oak, and hickories is rising from nuts planted by industrious squirrels.

Squirrels Don’t Plant All The Trees

Squirrels are the best friends of nut-bearing trees, but other tree species can’t rely on the furry rodents. Cottonwoods, for example, produce millions of seeds too tiny for squirrel food. So, the trees grow cottony fluff that floats seeds to distant places. If one lands in a patch of moist bear soil a fast-growing cottonwood sprouts. Maples have helicopter-like seeds that whirl a gig away from the parent to sprout a ways away.

Pity the poor Osage Orange tree that grows huge citrus-smelling balls containing hidden seeds. Many folks call them hedge apples.  A tree must get its seeds away from its own shade.  Squirrels do the job for oaks. The wind for cottonwoods. Massive mastodons once munched on Osage Orange hedge apples, wandered off, digested the pulp, and pooped out the seeds. When these massive elephants went extinct the tree lost its partner and saw its native range shrink from much of North America to a tiny spot down south.

Nature provides many ways for trees to reproduce and the results are often superior to what humans can do. We appreciate the squirrels that plant nuts many of which sprout into healthy native trees. Thanks, squirrels!

Winter Trees

Winter trees. We love ‘em even though they don’t sport their cooling green summer leaves or October’s color.

When autumn leaves fall, trees look wonderfully different. Their nakedness reveals sights that are difficult to notice during summer. Here are some of the delights we discover when walking through January woodlands and looking at the winter trees.

Pods, Seeds, Textures

Pods and Seeds:   Just what are those long string bean-looking pods hanging from the branches? They are the seed pods of the catalpa tree. Nearby are flattish, twisted, crinkled black pods upwards of six inches long. Some are still hanging from branches, while others litter the path. They’re honey locust pods. Pry one open to find large black seeds inside. Box elders have typical maple helicopter seeds that stay on the trees much of the winter unless devoured by hungry squirrels or cardinals. Sycamore trees hold their round ball seeds on the ends of branches well into winter.

Twig Texture:  Elms and sugar maples sport zillions of finely textured twigs toward their tops, while walnuts, box elders, catalpas, and ailanthus have far fewer but much thicker twigs. Ash trees are somewhat in between, but their twigs radiate out at nearly right angles from branches.

Bark and Shape

Bark:  Young maples, ailanthus, and Siberian elms have smooth bark that becomes darker and more textured as the tree grows. The most intriguing bark pattern is always on hackberry trees. The bumpy bark makes it unmistakable.

Shape:   The profile of leafless trees often is a clue to the species. Pin oaks have a central trunk with lower branches that sometimes slope downward or radiate out at nearly right angles. The tree is spruce shaped in great contrast to wide-spreading white and bur oaks. Box elders always seem to be leaning one way or another, while American elms often show a thick buttress close to the ground beneath a vase-shaped upper. Siberian elms shoot straight for the sky.

Color

Color:   Although winter tree bark is mostly gray to black sometimes color comes through. Spot a subtle orange bark and it’s likely a mulberry tree. Large Scotch pines also have pumpkin-colored bark towards the top.  Sycamores are distinctive in their pale, flakey bark. And, white birches are easy to identify with their smoother, white bark that tends to curl as the trees age. Their cousin, the river birch, has shaggier bark and often grows larger in damp soil.

Winter trees are always fun to see and often are easy to identify. As we walk through the snow, we love discovering many tree shapes, textures, seeds, and bark. to help identify Google something like shape of (name of tree) in winter. The images will help you identify the trees before you go for a walk.

Coppicing. Why Do Trees Re-sprout?

Coppicing

What? Coppicing? That word almost sounds dirty. Well, it’s not.  It is a good way to help derecho doomed trees live on!

We recently hosted friends to mark the first anniversary of the August 10, 2020, furious derecho that leveled around 70% of trees in the Cedar Rapids area.

Many people used words like devastation and destruction to describe what happened to trees in both forests and neighborhoods. The damage was truly shocking.

The Giving Trees

We wanted to show visitors a miracle of nature stimulated by the storm. Just east of our house stood a couple of basswood trees. Few of nature’s scents are as delightful as what comes from the blooms of this tree. Bees will fly three miles away to gather the nectar. We just enjoy the scent.

Basswoods have a problem. Their wood is soft and weak. When the derecho hit, they quickly snapped off, leaving a tangle of branches in our yard. Nearly a year later they demonstrated the power of near-perpetual youth.

Basswoods, along with many other deciduous trees, readily coppice. If a tree is cut or blown down it sends shoots up from the stump. Our basswoods quickly sprouted this spring, and we’re seeing others sprouting from stumps in suburban yards.  Many species of deciduous trees also send up shoots. Ashes, oaks, and honey locusts are common sprouters. Evergreens don’t. If a pine or spruce is cut off, the stump dies.

Woodland Management

In Europe coppicing is a method of woodland management. A tree is cut down and allowed to resprout. Because the regrowth is coming from a well-established root system, sprouts grow like crazy. The sprouts are managed carefully. The most hearty sprout is kept and the others cut off. Within five to twenty years, or so, the hearty sprout is big enough to cut for firewood, fence posts, or walking sticks. Then the stump resprouts again.  Some trees have been coppiced for hundreds of years.

Basswood trees are champion sprouters. Our stumps now look like balls of green leaves from all the sprouts radiating from the stumps. This fall we’ll clip off all but the most vigorous one. It will quickly form a new tree. That’s better, easier and cheaper than grubbing out the stump, then buying and planting a replacement tree.

An Internet search will turn up much information on coppicing. We like the website of the Midwest Permaculture Center.

Why Do Trees Fall on Calm Days?

Early one May afternoon we arrived home, glanced into the woods past our property, and were astonished to see an enormous red oak on the ground. The tree looked healthy, solid, and unlikely to topple, but it fell on a clear calm day. On its way down the old veteran broke two younger trees growing nearby.

A week or so later we woke to an enormous crash. It was pitch dark so we were only able to search around with a flashlight to learn that nothing had hit our house. The next morning, we discovered a giant elm prostate on the ground about 150 feet from our bedroom on a neighbor’s property.  Like the oak, it fell when it was calm. Unlike the oak, the elm had been dead for years and many mushrooms were growing from its trunk.

We enjoy a huge diversity of birds and other wildlife in our yard, in part because we adjoin Faulkes Heritage Woods, a 110 wild forest protected by a conservation easement. The Woods have not been logged for over a century, so many enormous oaks, hickories, and maples live there. Many are dead or in decline, but that’s great for wildlife.

Tree leaning on another tree.

Dead trees provide food and nesting sites

Of all landscape features few are as valuable to as many wildlife species as an old dead tree. Nearly as soon as a tree dies insects, bacteria, and fungus begin the long process of recycling wood and bark back into humus. Woodpeckers drill into dead trees to extract tasty insects and carve out nesting cavities. Often their old cavities are used by chickadees, wrens, and many other cavity nesters. Dead trees are favored perching sites for raptors, perhaps because they are leafless, so the sharp-eyed birds can spot prey on the ground.

We let dead trees stand on our property, as long as they are far enough away from the house so they can’t cause damage or injure someone when they crash down.

Are Dead Trees Dangerous

We’ve been in the right place at just the right time to see big trees fall. Usually, there’s a crack or two before a giant tree crashes down with lightning speed. If someone were underneath it then it would be hard to run fast enough to escape injury.

The odds of a person being hit by a falling tree while walking along a trail are infinitesimally small. It almost never happens. Most injuries and fatalities occur when people camp, picnic, or sit under a tree. The risk comes because they are under the tree for hours while sleeping or in a position where they can’t run and escape quickly.

Tent away from trees

Look up when placing your tent near trees.

Before setting up a tent always look up and never pitch it under a weak or dead tree that could fall in the night.  

 

How to Tell If A Tree Is Likely to Fall

Rotted wood

It’s a wonder this tree stood as long as it did.

Determining if a tree is likely to fall isn’t always easy. Sometimes seemingly healthy strong trees fall over, but often one gives notice that it is in decline and weakening. Here are visible signs that a tree is vulnerable to falling:

  • It’s dead. No leaves. Branches occasionally dropping off. Bark sheathing off.
  • It’s alive but increasingly branches are dying and are bare of leaves.
  • Mushrooms are growing from the wood.
  • Little piles of sawdust at the base show that insects or woodpeckers have been at work.
  • It’s old. As trees age, they stiffen and eventually, their wood weakens. Young healthy smaller trees are more flexible and bend back and forth in heavy wind without damage.  Wind can crack the wood of old stiff trees.
  • All trees eventually fall down but some have notoriously weak wood that breaks easily. Silver maples, black locust, and Siberian Elms often shed big limbs or break during storms.

Should I Have A Tree Taken Down?

Log on ground to be cut into firewood

Log ready to be bucked up to firewood.

Losing a beautiful old tree is painful, but there is a time when the tree should be removed to prevent an injury, death, or damage. At Winding Pathways, we let even old weak trees stand as long as they are well away from the house or places where sit. But if the tree could fall and hit a parked car, house or barn we call a tree service and have it repurposed into firewood.

 

This Youtube video provides an excellent overview of live and dead trees, saving or cutting the appropriate trees. My Woodlot.