Tag Archives: Tree Service Alpharetta Ga

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9 Common Tree Health Problems and Solutions

Trees get sick. Like any other living organism, a tree can fall ill for various reasons. If left to its own devices, it can eventually fall causing catastrophic damages.

When an otherwise healthy tree shows signs of illness or infestation, you must take action by eliminating the cause or calling on a certified arborist to evaluate the tree and offer a course of action.

The team of arborists at 72tree.com prepared a comprehensive list of 9 common tree health problems and their solutions.

Weather and Tree Health

Trees are affected by inconsistent weather patterns. The following demonstrates how weather impacts trees and how you can help them remain healthy.

1 – Drought:

One of the most common ailments of trees, symptoms of drought can be tricky. Sometimes, the signs won’t appear until as much as a year after the damage has been done. Those symptoms include:

•Drooping, wilting, and yellowing of leaves.

•Premature needle or leaf drop.

•Pronounced dieback.

•Thinning of the canopy.

•Deep cracks in the bark.

•Necrosis of leaves or browning of needles.

•Death of the tree.

Solution 1 – For planting new trees, make sure they are appropriate for the USDA Hardiness Zone in which you are located. If your area experiences occasional or frequent droughts, seek drought-resistant species.

Solution 2 – Water your trees regularly. New trees will require a deep watering once a week for the first two years (to establish its roots). In addition to watering, add a 3-inch layer of organic mulch around the tree to help the soil retain its moisture.

After two years and through its adult life, trees are very capable of finding water sources. However, throughout dry summer months and near the end of fall, weekly deep watering and mulching will help prevent drought problems.

Solution 3 – Prune back all cracked, dead or weakened tissue. Without pruning these troubled areas, the tree will become vulnerable to infection and infestation. Call on an arborist when pruning removes more than 25% of the tree’s canopy or mass. They can assess the tree and offer a course of action.

2 – Winter Burn:

Also known as desiccation, winter burn occurs primarily in evergreens and causes a discoloration of the foliage. Effects of winter burn are more pronounced where the tree is exposed to the sun and wind. This affliction requires the presence of the following three factors:

•Freezing temperatures

•Dry soil

•Wind

Solution – Provide your trees with weekly deep waterings through the end of fall and beginning of winter (before the ground freezes) and mulch the area of the root zone for the soil to retain moisture.

For trees that are highly exposed to the wind and sun, wrapping them with burlap will provide an effective barrier which can be removed as temperatures rise.

3 – Improper Pruning, Trimming, and Cutting:

There is a right way, and a right time to perform tree pruning, cutting, or trimming. When performed improperly, the tree may be left exposed to infection and infestation. When done at the wrong time, new growth may not have enough time to adapt before winter, further stressing the tree.

Solution – Know when to prune. Depending on the species of your tree, it may be better to prune in early spring, late fall, or even in the summer months. Use proper pruning or cutting methods when removing limbs, branches, or stems.

Watch this video to learn more about proper pruning techniques.

Tree Insect Infestation

For the most part, healthy trees can stave off insect infestations. However, when a tree’s health is weakened, or there is an increase in the insect population, no tree is off limits.

4 – Insects on Leaves and Bark:

Insects such as aphids, inchworms, bagworms, spider mites, lace bugs, and tree scale are common and relatively easy to manage.

Solution – Apply insecticidal soap, neem oil, or a horticultural oil directly on the area of the infestation.

5 – Boring Insects:

Insects such as the Emerald Ash Borer, Japanese Beetle, Southern Pine Beetle, and Ambrosia Beetle are more complicated to control. You can identify boring insect activity by seeing “sawdust” from their boring activity and the entry hole they create when entering the tree.

Note: Do not inject insecticides, poisons, or other substances into boring insect entry holes. The chemical may end up further damaging the tree leaving it more susceptible to infestation and death.

Solution 1 – Prune back branches and stems that have been infested and destroy them to prevent further spreading. If more than 25% of the tree’s foliage or mass must be removed, seek the assistance of a certified arborist.

Solution 2 – When the infestation is in the trunk of the tree, call an arborist to evaluate the damage and determine a safe approach to halting the infestation.

Solution 3 – Prevent infestations by keeping your trees healthy. When you hear about an outbreak in your area, treat your trees with a bark insecticidal spray to deter the insects from making your tree its host.

Tree Fungal Diseases

Most fungal diseases make their way into a tree through the roots and open wounds. Once a tree is widely infected, it becomes challenging to control the fungi and will often result in the removal of the tree.

6 – Fungal Infection (internal)

The most alarming sign of fungal trouble is when mushrooms grow on the trunk or branches. Since they require decaying matter to develop, there is a serious issue at play.

Note: The introduction of herbicides to a wounded tree or beneath the bark will only serve to accelerate the death of the tree.

Solution 1 – Prune back and destroy affected foliage, limbs, and branches. Again, when more than 25% of the tree’s foliage or mass must be removed, seek the assistance of a certified arborist. The removal of the tree may be the only way to keep your other trees from being infected.

Solution 2 – Properly prune your healthy trees (or have them pruned) to keep them healthy. A poorly pruned tree is more susceptible to both insect infestation and fungal disease.

7 – Fungal Infection (external)

The wind, birds or insects often carry spores of fungi and pathogens from tree to tree. Cankers, fire blight, rust disease, powdery mildew, and many others are common in the spring and summertime.

Solution – Carefully prune back and destroy affected foliage and apply a fungicidal spray to the affected and surrounding areas. Surrounding trees and shrubs should all undergo treatment as well.

Watch this video to learn about pathogens such as fire blight and cankers which affect tree bark and foliage.

Tree Problems Caused by People and Machinery

All of the threats mentioned above aside, people pose the most significant threat to a tree’s livelihood either by lack of knowledge or accident.

8 – Soil Compaction:

The land that surrounds a tree (especially under its canopy) contains the majority of the roots that draw water for the tree. These roots grow within the top 12 to 18 inches of soil. When this area is compacted, these roots suffocate and die, severely weakening the tree.

Trees compromised by soil compaction are at a heightened risk of toppling in a storm or severe weather event, as their roots are no longer effectively able to anchor them to the ground. Many times, no storm is required, the tree will eventually succumb to its own weight and fall on its own.

Solution – Never drive or park any vehicles underneath a tree’s canopy. Likewise, never store heavy equipment, or erect tool sheds under a tree.

In most municipalities nationwide, tree protection ordinances mandate that protective barriers be placed around trees on construction sites to deter such activities.

The majority of those same ordinances impose heavy fines and replanting requirements known as a recompense for damaged or removed trees.

9 – Lawn Mowers, Motorized Equipment, and Bark Damage:

Below the bark of a tree and outer layer of roots, there is a thin layer of cells called the “phloem” which is the conduit for nutrients traveling up and down the tree.

When a tree’s bark is damaged, not only is the tree susceptible to infection and infestation, that flow of nutrients is interrupted and if the damage is around the majority or entirety of the trunk, the tree will be girdled and die.

Solution 1 – Do not allow lawn mowers and other equipment to damage protruding roots or the bark of the tree.

Solution 2 – For protruding roots, either raise the ground level to bury them, or carefully prune them. If you choose to prune the roots, call on a tree professional for detailed instruction or to do the job. Just cutting them out may result in the decline of the tree’s health and its death.

Solution 3 – If the bark of a tree is dried, cracked, or knocked loose, DO NOT remove it. Call an arborist to evaluate the tree’s situation.

Healthy Trees and Arborists

All arborists would agree that healthy, well cared for trees are capable of resisting most infestations and illnesses on their own. However, when a tree does present signs of trouble, knowing what to do can mean the difference between life and death for the tree.

Whether the troubles come from weather, insect, fungi, or people, the solutions are usually simple when detected and treated early. In many cases, to prevent the spreading of a pathogen or the demise of the tree, a certified arborist should be called in to assess the situation and determine a safe course of action.

When your trees show signs of trouble, doing nothing or hesitating to correct the problem may result in the decline of the tree’s health or even its abrupt death.

Sources:
https://www.treesaregood.org/treeowner/planthealthcare
http://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/pests-and-problems/environmental/winter-injury/desiccation-or-winter-burn.aspx
https://www.arborday.org/trees/health/issues.cfm

4 Shrub Species for Your Alpharetta Georgia Yard

Shrub species in Alpharetta Ga front yard garden

Trees, flowering shrubs, bushes, plants, and grass all work together to create a diverse ecosystem above and below the ground. While birds, insects, and other wildlife are attracted to the foliage, refuge, and blooms above, the roots are working below to find water, nutrients, and stability.

Choosing the right shrubs for your Alpharetta Ga landscape is a question of selecting ones that will thrive in the conditions of the environment where they are planted.

The team at 72tree.com has identified 4 shrub specimens that will enhance the natural beauty of your Alpharetta yard and landscape.

Hardiness Zone 7b Bushes and Shrubs for Alpharetta

The USDA Hardiness Zone Map divides North America into 11 planting zones. Each individual planting zone is around 10°F colder (or warmer) than its neighboring zone –during an average winter.

At your local nursery or garden supply store, plant identification tags usually identify the zone in which that species will thrive.

The city of Alpharetta is located in zone 7b with a humid subtropical climate which supports the following striking species:

Juniper – juniperus

Juniper shrub in yard with bushes Alpharetta Georgia landscape

Junipers are long lived, slow growers, and rarely die. With a strong and extensive root system, they are able to adapt to their surrounding environment with ease. When planted in a location with ample space for growth, this specimen requires very little attention.

Juniper varieties vary in shape and size. The taller of the species can reach heights of more than 130 feet at maturity. The majority of the species however, are slow growing and will only reach about 30 feet in height, or 3 feet in diameter at maturity.

Junipers are evergreen and while they do not produce flowers or fruit, they do produce seeds.

Under the right conditions, this species can live from 400 to 700 years.

They are vulnerable to rust disease, which can be managed through pruning affected areas and treating them with fungicides.

Mountain Laurel – Kalmia latifolia

Mountain laurel flowering shrub in Alpharetta Ga garden

Mountain Laurels are relatively fast growers when properly planted. With a matted spreading root system, this shrub grows well in acidic well drained soil, and thrives when grown on north facing slopes or the east side of structures.

Mountain Laurel varieties are able to reach upwards of 25 feet, and if left to thrive without pruning, can grow into a large blooming thicket. Prolonged direct sunlight in summer months can stress this species. Take this into consideration when choosing its location.

This species is evergreen and produces flowers in terminal trusses of 50 to 150 blooms. Blooms range in color from white to pink and deep rose commonly with purple details. Flowering occurs in late spring (May and June).

This shrub however, is toxic. All of the green components – including the flowers, pollen, and twigs – contain andromedotoxin and is poisonous when ingested. If browsing animals consume enough of the plant, it can be lethal.

Mountain Laurel is vulnerable to leaf spot which can be managed through pruning affected areas and then treated with fungicides.

Rose of Sharon – Hibiscus Syriacus

Rose of sharon Alpharetta Ga yard and garden

Rose of Sharon can be planted as a small tree or large shrub. It grows well in varied soil types but performs best in hot climates with moist soil and full sun.

At maturity, this species can reach up to 12 feet tall and grow 10 feet wide. Being multi-stemmed with vertical branches, it is relatively easy to grow, and requires minimal care. For this trait, Rose of Sharon is commonly used as hedging.

Rose of Sharon is a deciduous flowering shrub which with heavy pruning in early spring promotes flowering from July through September. Its flowers reach 2 to 4 inches in width, and blooms can range in color from pink, red, purple, white, and blue with a typically red center.

This species, if left unchecked, will reproduce and spread quickly in areas with little disturbance. Rose of Sharon is a vigorous and healthy species with high tolerance to pests and disease. When there is a problem with either, it is easily remedied through heavy pruning and with insecticides or fungicides.

Gardenia – Gardenia jasminoides

Gardenia flowering shrub in Alpharetta Georgia garden

Gardenia can be planted as a small tree or large shrub. It thrives in acidic soil with good drainage, and flourishes in high humidity. This shrub grows best with night temperatures above 60 degrees, and mid to low 70’s during the day. Bright (not direct) sunlight is best for this species.

This shrub can typically grow up to 15 feet but some varieties are able to reach heights of 50 feet tall. With its many size and form variations, they are frequently used as hedges, ground cover, and even specimen plantings.

Gardenias are evergreen flowering shrubs and small trees that do require moderate attention and care. Flowering from April through July, the flowers can be solitary or in clusters; they range in color from white to pale yellow.

One of the greatest features of growing gardenias is its sweet scent. Once the species blooms however, the flowers quickly wilt when they come in contact with water.

Gardenias are highly susceptible to pest infestations. However, they can be easily managed with insecticidal soaps or horticultural oils. It also helps to maintain a high level of biodiversity in your garden which serves to attract predators of the insects threatening your garden.

Benefits of Shrubs Around Trees

Besides all of the artistic possibilities that come about on a landscape rich with trees and shrubs, during severe weather and strong winds, it is your shrubs and bushes that act as a wind buffer.

Shrubs and bushes do an excellent job at diverting wind, thus weakening it. This in turn spares the surrounding trees from taking the full force of potentially damaging winds.

Likewise, the bushes planted around your home will help shield it when the cold winter winds begin to blow.

Healthy Gardens and Landscapes Need Diversity

A healthy garden and landscape will have a variety of thriving tree, plant, and shrub species. Throughout the blooming season, as each species flowers, it attracts different insects and wildlife.

This biodiversity helps to stave off infestations. Likewise, the co-mingling of roots and fungi (in fertile soil) help to create a thriving mycorrhizal network below the soil that works to impede invasive diseases.

Remember to have a plan in mind when acquiring plants and shrubs for your garden and landscape. Not all shrubs can be planted equally, but they all can thrive in the right environment.

Sources:
http://buckjones.com/trees-shrubs-how-to-choose/
https://www.michigandnr.com/publications/pdfs/huntingwildlifehabitat/Landowners_Guide/Resource_Dir/Acrobat/Trees_and_Shrubs.PDF
http://www.lot-lines.com/5-reasons-to-reconsider-your-hatred-of-juniper-bushes/
https://en.wikipedia.org/wiki/Kalmia_latifolia
https://extension.psu.edu/mountain-laurel-diseases
https://www.uaex.edu/yard-garden/resource-library/plant-week/mountain-laurel-6-15-12.aspx
http://www.hort.uconn.edu/plants/detail.php?pid=204
https://communityenvironment.unl.edu/plant-month-rose-sharon
http://homeguides.sfgate.com/rose-sharon-tree-41486.html
http://gardeningsolutions.ifas.ufl.edu/plants/ornamentals/gardenias.html
https://en.wikipedia.org/wiki/Gardenia
https://plants.ces.ncsu.edu/plants/all/gardenia-augusta-g-jasminoides/

5 Tree Pests and Diseases to Avoid this Spring

Tree pest inchworm cankerworm infestation

Spring has arrived and with the new season comes new tree problems. It isn’t just the flowers blooming, trees budding, and pollen everywhere; tree pests and diseases are coming alive as well.

Generally, when winter weather and lower temperatures are sustained throughout the season, pests and disease won’t pose much of a threat in the spring. This year however, winter weather and temperatures were relatively mild, favoring the spread of disease and increasing pest population. It’s just the beginning of the season, and there is great potential for tree damage this spring.

The arborist at 72 Tree, Seed & Land Co. identified 5 common tree killers, and methods to get them under control this spring. Also being discussed are routine tree and landscape inspections, pest and disease prevention, and ongoing tree care throughout the year.

3 Common Spring Tree Pests

While there are a wide variety of tree pests, the following have been singled out due to the extent of the damage they can cause. So take heed because, the damage often goes unnoticed until removal of the tree is necessary.

Bagworms – If the leaves on your tree are turning brown or the needles are falling off of your pine, the culprit may be bagworms. Your tree is their food, and as they consume, your tree is unable to produce vital nutrients to keep it healthy and alive.

These worms make a bag-like nest (thus the name) which is often mistaken for a pinecone. In the fall, they mate and each female bagworm is able to lay over 500 eggs that hatch in mid spring.

There are two effective ways of controlling bagworms. You can physically remove and destroy the “bags”, or apply a pesticide in the spring as they are hatching. Once you have confirmed that bagworms have invaded your landscape, you will likely need the help of a professional tree service to keep them under control.

Cankerworms – Also known as inchworms, cankerworms chew away at the foliage of your trees. There are two species of this pest “fall cankerworm” and “spring cankerworm” but don’t let the name mislead you, they both hatch in the spring and feed on the same trees.

The damage they inflict on trees is more stress related and potentially leads to dieback, borer damage, and even root decline. For a healthy tree, one year of cankerworm defoliation won’t necessarily result in the loss of the tree. However, multiple years of defoliation will weaken the tree, making it susceptible to other pests that can ultimately lead it to its death.

When there is a breakout of this pest, there are two principle treatments.

1) Banding the trees in the fall (the wingless females stick to the band and cannot reach the canopy to deposit their eggs) is one very effective measure.

2) The other is the use of pesticides shortly after the worms have hatched. This measure is only effective while the worms are small and should be monitored by an arborist to ensure proper control is achieved.

Southern Pine Beetle – (Dendroctonus frontalis) These boring tree killers are known as the most destructive forest insect in the southern states. The signs or symptoms of an infestation are severe dieback, browning, and eventual death of entire limbs, foliage, and the tree itself.

Once this beetle attacks and succeeds at making a tree its host, the adults emit a pheromone attracting other beetles to the tree. In a matter of days, a tree’s defenses can be overrun by thousands of beetles. As one tree becomes overpopulated, the beetles will seek out nearby trees to colonize, thus expanding their population and local infestation potential.

It is the older and weakened trees that are more susceptible to beetle infestation. Control is accomplished by promoting the health of your trees, and when there is a breakout, applying insecticides to the tree bark is an alternative.

If you have a tree affected or infested by southern pine beetles, you will need an arborist to help identify witch, and if measures can be taken to thwart the infestation.

2 Common Spring Tree Diseases

Throughout the lifecycle of a tree, it may be faced with a number of fungal invaders from its roots to its leaves. While a tree builds a natural resistance to these invaders, trees are not completely immune and can be severely debilitated. The following tree diseases are ones that should be addressed immediately after being diagnosed.

Fire Blight – (Erwinia amylovora) Is a contagious plant disease. Blight is a hard to control pathogen that robs plant and tree foliage of its nutrients, causing the blackening and death of that foliage. Fire blight differs from dieback in that it leaves behind the appearance that the foliage has burned. Thus the name.

Blight is most successful in the springtime, as temperatures and humidity remain ideal for its growth. As with other pathogens, it is spread from host to host by physical contact, insects, birds and other wildlife; be careful when working in the garden because even the tools used for landscape maintenance can transmit fire blight disease.

Moreover, there is no known cure for blight. Control is achieved by pruning and destroying the affected foliage and limbs. The use of pesticides can also aid to control the pest population. As stated, the proper cleaning of equipment after use is helpful to avoid its proliferation. While the planting of resistant or tolerant species is an effective and proactive approach to overcome this disease.

NOTE: When cleaning garden and landscape equipment after handling diseases such as blight, applying a bleach solution (1 part bleach to 4 parts water) to your tools is recommended to neutralize the pathogen.

In the following link we discussed preventing fire blight tree disease in more depth, so check it out for more solutions and detail of this devastating disease.

Heart Rot – Heart rot is a fungal disease causing the softening and decay of the wood found at the center of a tree’s trunk and branches. When you see mushrooms or fungus conks attached to the trunk or branches of a tree, it can be a strong indicator that heart rot is present within the tree.

Fungi enter the tree through damaged bark or poorly pruned ares, move to the heartwood, and begin the process of decay. Softening of the heartwood leaves trees structurally weak and prone to collapse or breakage.

Hardwood trees are affected by heart rot on a global scale, and is extremely difficult to prevent. However, if a tree is growing vigorously, it may be able to isolate the affected portion of itself through a process called compartmentalization.

Control of this destructive disease may be achieved by keeping your tree healthy through proper pruning techniques, annual inspections by an arborist, and post storm maintenance and pruning.

Routine Tree and Landscape Inspections

Tree and landscape inspections start with you. When you’re out mowing, watering, pruning, or playing in your yard, observe the plants, shrubs, and trees. Look for insect infestations, discoloration in the foliage, and dieback of the limbs and crown. For more on dieback and signs of a diseased tree, visit 72tree.com/signs-diseased-tree-dieback-suckers-water-sprouts/

Once a year, hire an arborist to thoroughly inspect your trees and the plant life in your yard. They are trained to spot potential health issues, and implement the best solutions to save and/or extend the lives of your plants.

Prevention and Continued Care

The best preventative maintenance for your trees and plants is the consistent and continued care that you provide them. Healthy plants have the strength to develop defense systems that ward off both pests and disease.

Proper and timely pruning, watering, and fertilizing will help your trees reach maturity faster and in a stronger and more resistant way.

Controlling Pests and Disease All Year

Every pest has its season and every season has its pests. As you have probably gathered by now, the best way to control pests and disease is by keeping your trees, shrubs, and plants healthy through remaining proactive and aware of their state.

Pest control will help in stopping the spread of pathogenic fungi and bacteria, as well as curbing some of the more voracious insects. Fungicides will also help keep many of the pathogens away from your landscape’s ecosystem.

Keep your trees healthy this spring and for years to come by knowing what to look for and which steps to take. And when something strange pops up, call on your local arborist to address and get it solved.

Tree Pruning Techniques

Tree trimming cutting and pruning by arborist

Your trees are constantly responding to environmental changes and throughout the year, they will need some help by way of pruning.

Tree pruning will help to improve the overall health of your trees, their overall appearance, and naturally reduces the possibility of tree failure. The improper pruning of a tree can stress a tree leading to potential decay, infestation, disease, and even death.

Below the arborist at 72 Tree, Seed & Land Co. discuss the different ways trees can be properly pruned.

Tree Height Reduction

When reducing the height of a tree, much care and precision pruning are necessary.

This procedure must be done correctly; “topping” or cutting through the main trunk often leads to several issues for the tree including failure.

Depending on the species and growth pattern of the tree, height reduction may not be possible without irreparably damaging the tree. In these cases, the choice to remove or relocate it may have to be made.

Tree Crown Raising

Crown raising involves the pruning, cutting, or removal of the lowest branches of a tree. This procedure provides more clearance under a tree for people and vehicles.

This procedure, when performed on younger trees, will encourage more growth in the upper branches. When raising the crown on older more developed trees, much caution is needed as the lower branches will be much larger and leave larger wounds.

Tree Crown Thinning

Crown thinning is a wise option for trees that sustain the full force of strong winds or have to bear the weight of accumulated snow or ice.

This is accomplished by the selective and careful removal of branches from within the crown. This process reduces the force of the wind on the canopy, as well as reducing the weight of snow and ice on the tree.

Care must be taken when thinning a crown. The improper procedure or over thinning can lead to disease, decay, infestation, or make the tree more susceptible to being blown over.

Tree Crown Cleaning

As the name suggests, crown cleaning is the removal of dead and dying branches. Crown cleaning is the more common of the pruning options.

This procedure helps to protect your tree by removing unnecessary weight, reduces the risk and hazard of falling branches, helps to halt the progression of decay and disease, thus improving the overall health of the tree.

Small or Ornamental Tree Pruning

Small or ornamental trees should be routinely pruned for many of the same reasons mentioned above. They may also be pruned for simple esthetics or to train them as they grow.

Professional Regular Pruning

Once aware of the signs your tree needs pruning, having your trees regularly pruned by a tree service or certified arborist will keep your trees healthy and beautiful. This will also benefit your landscape by the early detection of problematic infestations, fungi, or irregularities that may otherwise go unnoticed until it’s too late to correct.

An added benefit to regular pruning services is curb appeal. The better your landscape appears, the more curb appeal your property will have. This usually translates to a higher property value.

Overall, pruning is beneficial and necessary throughout the year. Follow these tree pruning tips, and visit our tree care blog more articles and information.

Tree Roots Are Buckling My Concrete Driveway

Invasive tree roots buckling and cracking concrete driveway

Tree roots constantly seek a water source, in doing so, they can spread very deep or very shallow and in a very large radius from the trunk. When roots spread at shallow depths, they will find their way under asphalt, sidewalks, and yes, driveways.

As the roots naturally expand and thicken, they will displace everything around them creating tremendous potential energy. This energy is usually released upward (path of least resistance), resulting in the breaking, cracking, warping, or buckling of whatever structure is above.

Here, we will discuss measures you can take to repair damaged concrete, remove damaging roots, and how to avoid this issue in the future.

How Much of the Tree’s Roots Can Be Removed

The answer to this isn’t quite as simple as it may seem. Here are some factors to consider:

Tree Roots Three Inches or More in Diameter – When cutting roots this size, they typically will not grow back. However, a wound this large leaves the root susceptible to insect and disease. Often times, this allows rot to reach all the way back to the trunk, seriously compromising the health of the tree.

Tree Roots Less Than Two Inches in Diameter – Tree roots this size are typically able to regenerate. Removing them will only e a temporary fix.

Tree Roots Grow Far and Wide – Typically, you will find that one inch converts to about a foot and a half. That is, for every inch at DBH (Diameter at Breast Height – measured 4.5 feet above the ground), the roots will extend up to a foot and a half away from the tree trunk. A twelve inch trunk at DBH means roots are extending up to eighteen feet away from the trunk in every direction.

Tree Roots Are Sensitive to Disturbance – Tree roots seek out uncompacted soil rich in oxygen (like the soil under sidewalks and driveways). When the soil underneath a tree is compacted by heavy machinery or used as a storage area for a construction site, the roots beneath the surface are literally being choked to death. Eventually, this will result in the decline of the tree’s health, leading to its death.

Tree Roots Under the Driveway – Roots provide structural integrity to a tree. If they have grown under the driveway, the driveway is now a part of its structural integrity. Depending on the size and depth of the roots, removing them may lead to the falling of the tree in severe weather.

More often than not, by the time tree roots have buckled your driveway, you may be faced with the ultimate removal of the tree, if you are to break up and re-lay the affected portion of the driveway.

How to Repair Your Driveway and Save Tree Roots

If the tree is a keeper in your landscape and the roots in question are vital to its survival, there are construction options or methods which will allow the coexistence of the roots and your driveway. Here is one of the multiple options you may use:

Aggregate Surfacing – This technique requires the cutting and careful removal of the damaged concrete. Once the concrete has been removed, the surface below is covered with driveway fabric (aka: geotextile fabric), then four to five inches of dense grade aggregate (DGA) or road stone. The project is completed by using edging along the sides to prevent the aggregate from spreading laterally.

Tree Species, Watering, and Location Matter

Ultimately, it is the lack of planning or the proper information to form a plan that lead to situations such as these. Before planting a tree, you should be aware of its species, potential growth, root spread capacity, and if its roots are typically classified as invasive or not.

Location is a key factor in the survival of any tree or plant. Planting a tree too close to a structure is like inviting a bull into a china cabinet. As trees grow, they instinctively seek out water sources, expand their canopies, and potentially wreak havoc on the structure they were planted next to.

Once a tree is planted, frequent watering will help its root system to grow deeper. Shallow root systems often reflect insufficient watering or compacted soil further beneath the surface.

To learn more about proper planting, see: http://treecareadvice.blogspot.com/2015/12/properly-planting-canadian-hemlock.html

Professional Tree and Tree Root Removal

While the solution you choose may be an easy one, innocent mistakes may lead to a much more serious situation as your tree’s health declines and ultimately dies.

Before any steps are taken to remove a tree or a portion of its root system, it is highly recommended to seek the advice of a certified arborist. An arborist is a tree professional trained to spot trouble pertaining to tree issues and how to efficiently resolve them.

Power Line Interfering Trees & The City of Alpharetta Tree Ordinance

Interfering tree fallen over powerlines in Alpharetta Ga

Whether you see trees interfering with power lines on your property or in the public right-of-way, it is important that you do not take matters into your own hands. When trees come in contact with power lines, they may break or bring the power lines crashing down. 72 Tree has seen this cause power outages in Alpharetta and notes these scenarios should be taken very seriously.

The trees are treated as seriously as the potential electrical hazard. The City of Alpharetta Tree Ordinance protects the city’s trees (both alive and dead) and imposes heavy fines for the unlawful cutting or removal of them.

Trees Interfering With Power Lines in the Public Right-of-Way

Alpharetta residents should report any tree on public property which poses a hazard to power lines by visiting Georgia Power or calling (888) 891-0938 and press option #2 – dangerous condition.

If storm-damaged limbs or a diseased tree has fallen and is obstructing the roadway, dial 9-1-1 (day or night) and provide as much information as possible for a swift and accurate response by emergency services. For occurrences in or on all other public property, contact the City of Alpharetta Arborist – David Shostak at (678) 297-6229.

Tree Branches Are Touching My Power Lines

When tree branches make contact with power lines, do not take any measures to correct the situation. Keep any and all ladders, equipment, and hands away from the tree and the power lines to avoid electrical shock.

In this situation, there are two options to safely have the situation mitigated:

Contact a tree professional properly licensed and trained to trim or cut the tree. Most professional tree services will make sure that the proper permits are acquired before starting any work.

Contact Georgia Power to advise of the tree and its potential danger. Georgia Power doesn’t attend to a single request on private property, typically they will cut and trim entire rows of trees. However, depending on the severity of the situation, they may respond or direct you to who can resolve the situation.

City of Alpharetta Ga Tree Ordinance

Specimen Trees – In the City of Alpharetta, specimen trees are provided special protection under the law. The damage, destruction or removal of these trees (dead or alive) without a permit may incur severe fines and penalties. There are also heavy replanting requirements when a specimen tree is lawfully removed. Contact the City arborist for further details regarding specimen trees at (678) 297-6229 or via email: treepermits@alpharetta.ga.us

Specimen tree size criteria is as follows:

Understory Trees – 8 inches DBH and greater

Overstory Trees – 24 inches DBH and greater

Pine Trees – 30 inches DBH and greater

DBH – “Diameter at Breast Height” is a standard measurement method of the diameter of the trunk of a standing tree. The diameter of the trunk is typically measured 4.5 feet above the ground (unless otherwise specified).

Tree Density Requirements – Tree density for single family residential property owners. The City of Alpharetta requires a minimum tree density on the property’s plantable area. Homes built prior to 1992, have a required minimum density of 20%. If built after 1992, a 30% minimum density is required.

For the determination of coverage for both understory and overstory trees, the City of Alpharetta provides a worksheet to accurately calculate the percentage. Questions on this matter should be directed to the City arborist at (678) 297-6229 or through email: treepermits@alpharetta.ga.us

For complete tree removal requirements in Alpharetta Ga, visit www.alpharetta.ga.us/government/departments/community-development/tree-removal

Seek Professional Advice Before Cutting or Trimming Your Tree

Before taking any action regarding trees in Alpharetta, seek the advice of an ISA Certified Arborist, tree cutting and removal service, or the City of Alpharetta’s Arborist Division. The potential cost of acting alone or out of haste is too great.

Always remember that when trees pose a hazard to life, taken down power lines, or have fallen and obstructed the road, stay clear of the affected area, do not drive over the power lines, and dial 9-1-1 for an immediate response.

Helping Your Trees Survive the Winter

There are a number of things you can do to help your trees survive the winter when they go dormant. Almost everything about winter; the ground freezing, the heat of daytime followed by freezing nights, snow and ice storms can all damage your tree.

Trees are known for their ability to survive through the winter and then spring back to life during the spring. Today we’ll be taking a look at just how trees are able to do this, and we’ll learn something about nature as we go.

Let’s start by looking at dormancy and some of the measures 72 Tree and you can take to help your trees survive the coldest months.

Dormancy in Deciduous Trees

Dormancy is one of the coolest tricks Mother Nature knows. This is when a tree stops producing food during the winter and no longer needs the photosynthesis process or the leaves involved in it. So leaves have to be removed to conserve energy. Deciduous trees produce a chemical called abscisic acid (ABA) in the terminal buds that connect leaves, telling leaves it’s time for them to go.

ABA prevents both deciduous and coniferous trees from growing. This impeded growth is another part of the dormancy process, further reducing how much energy the tree consumes. As the tree enters a conservation state, the metabolism of the tree slows down; using the energy from stored food slowly to maintain vital functions.

Winter Tree Care

Pruning – You should wait until dormancy to prune your tree, when you aren’t likely to damage new growth. Late season growth is particularly at risk from pruning, as it hasn’t had the time to prepare for winter months. Ice crystals may form within new growth and rupture cell walls. If they aren’t pruned properly, they are likely to die off during the spring.

Visit here for more pruning tips and instructions.

Mulching – Winter drought is a problem caused by a tree shrub or plant losing more moisture than can be absorbed. While you aren’t able to control the weather, you have some influence of the effects of it. Putting a thick layer of organic mulch down before winter temperatures set in helps to insulate the roots. The mulch also prevents runoff and moisture loss, benefiting the overall health and hydration of the tree.

Please note that trees don’t freeze entirely, even in a dormant state. Looking at the tree shows you they prepare on the cellular levels. It sounds incredible, but much of the work a tree does to survive winter is happening under the bark inside the tree.

Remove Build-up of Ice and Snow – It’s likely that you might see snow build up on your tree or cling to the branches of it following some bad winter weather. It’s important that you leave the snow be and don’t shake it off. There’s a good chance that the branches have frozen solid and become brittle. Shaking them could damage the tree or even cause these limbs to break off and fall, which is a serious hazard. If you find yourself in this situation then call in a tree professional to evaluate the situation. They will be able to advise the best course of action to take.

Trees Spring Into Life Following Dormancy

Trees will start springing back to life as the days get longer and the temperatures get warmer. If you took care of them properly, then you’re in for another year of beauty and shade provided by a healthy tree. Taking care of them, by the way, means doing absolutely nothing and letting nature take its course. After taking care of the seasonal pruning, you’ll have done enough to protect your tree. Trust the natural survival mechanisms of your tree to handle everything else.

Your trees are often stressed during winter. Knowing ways to lessen the impact is helpful. Learn these preventative tree stress methods to give your trees a greater chance at prolonged health and life. 72tree.com/winter-tree-stress-prevention-and-protection-tips/

Assessing Tree Damage Post Hurricane

Tree severely damaged by hurricane with snapped trunk

The very random weather condition in Georgia can be tough on trees. 72tree.com deals in disaster relief, so we often see the impact of weather on trees. Regardless of whether it’s a hurricane, ice storm, hail, tropical storm or strong winds, immediately after the weather event, caution and care should be taken to treat and heal the affected trees immediately.

Trees in native stands are said to sustain fewer wounds and decay when compared to their counterparts in the urban and suburban environments. Severe storms like hurricanes and torrential downpour in addition to debris and structures can causes trees to sustain severe and fatal injuries.

Humans to a large extent contribute to these injuries – albeit by accident, such as construction equipment, vehicles, bumping into the tree trunks, lawn mowers, improper pruning and surface roots. Other natural events like severe storms can cause devastating injuries, crown damage and on some occasions, total destruction of the trunk.

Evaluating Tree Damages

Often times, trees easily recover from severe damages arising from harsh storms. Before felling trees that can be saved, use the guide below to help you diagnose them;

Missing Limbs – The more severe the damage to the tree limb is, the lesser the chances of recovery. If a majority of the branches are gone, removal should be considered as the tree has a very little chance of pulling through.

Is the Crown Intact? – If the crown of the tree has a significant portion of its branches affected, removal should be pondered as it may not produce enough to last another season. The crown extends from the tree trunk in the canopy region.

Multiple Missing Limbs – Normally, the remaining limbs are expected to grow rapidly to replace the missing foliage. Check to see that the branches are in the right place, as they will help in giving the tree a fuller appearance.

Assessing Trunk Wounds and Their Treatment

Trunk wounds that pierce the bark of the tree will damage its cambium layer – a thin layer of vascular tissue, which helps in conveying mineral and nutrients. In the event that there is a wound on the trunk, carefully, the injured bark should be removed, what should remain is a healthy bark that is healthy and firmer on the tree.

Decay-causing fungi can initialize a decay process when a wound occurs. Trees have a special defense system – the wood around the wound produces a special compound in the wood cells that will obstruct and segregate the affected part – this process is known as compartmentalization.

To hasten the healing process, branches affected by the storm should be properly pruned. 72 Tree warns to ensure that you do not prune directly against the trunk as flush cuts can cause widespread decay.

Tree Removal as a Last Resort

Tree removal is often at the bottom of the list, but some circumstances can justify the action. Furthermore, our Arborist treesaregood.org/findanarborist/findanarborist/id/169107 can help you ascertain if a tree needs to be removed or not.

However, before a decision can be reached, these factors should be taken into consideration:

• The age
• The species
• Type of soil and saturation
• The tree’s capacity to sprout and recover
• The tree’s position (level or sloped terrain)

Once you have reached a decision, arrange a meeting with a professional tree service to treat or have the tree removed. In conjunction with an arborist, tree professionals have the needed skill, equipment and experience to safely remove a tree in the safest possible manner.

Tree Buying Tips

Trees container grown and bare root ready to plant

These tree buying tips will assist you in the purchasing of a healthy tree. Keep in mind that proper tree care starts when you select a tree, making the right selection will affect its shape, strength, and even its life span.

Research is key. Before buying trees, layout a plan of where they will be planted. Know how large they will grow, how far the canopy will extend, and how much space they will need to reach their maximum potential.

The Hardiness Zone Map will help you select appropriate trees for the geographic region they will be planted in. Consulting your local tree professional is always a good idea if you have any doubts.

The USDA Hardiness Zone Map Explained

The state of Georgia finds itself in zones 7-A & B and 8-A & B. A hardiness zone is based on a 30 year average of annual extreme minimum temperatures. It’s not based on the lowest recorded temperature in a region or what may happen in the future.

Keep this in mind as you choose plants and trees, especially if you are planning to “push” the hardiness zone by planting trees and plants not designated for your particular zone.

To learn more about the USDA hardiness zone read this: 72tree.com/trees-shrubs-usda-hardiness-zone-map/

The Right Season for Planting

Planting – There are two seasons for planting trees. Early spring and early fall. There is an interesting debate here. One side of the argument is that planting in early spring (when the tree is coming out of dormancy) reduces the shock and recovery time of the tree. The other side argues that planting in early fall allows the tree to establish its root system and adapt to its environment before entering dormancy.

Depending on the hardiness zone and the tree species, either season may be appropriate for planting. If you have any doubts, consult our tree service and professionals.

Transplanting – Regardless of how carefully performed, transplanting results in the damage of a great portion of the tree’s root system. It is important that the digging, moving, and replanting operations be carried out with the least possible damage to the remaining root system.

The recommended time for moving trees is during the dormant season. Early spring is generally the best time to transplant; conditions should be ideal for rapid root growth.

For more tree planting tips and details of the process, visit: treecareadvice.blogspot.com/2015/12/properly-planting-canadian-hemlock.html

Purchasing Bare Root vs Container Grown

Bare Root – Abundant root growth should be present, there should be fibrous and numerous small roots as well. They should have good color to them being flexible and moist. Deciduous trees should present roots equal in length to its stems.

Container Grown – Avoid trees that have become root bound in their container. Roots circling around in the container will likely become circling roots (cut them when planting).

NOTE: Examine the tree’s roots, trunk, and canopy. Trees are able to absorb water from the tips of their youngest roots and undisturbed, fibrous, and non-circling root systems are your best option.

Buying Strong and Healthy Trees

When deciding on which trees to purchase for your landscape or project, keep in mind that the Hardiness Zone Map will guide you by the geographic region you are planting in, while the season you are planting in will determine if you should plant or transplant.

Whether you choose bare root or container grown, be sure to inspect the roots, trunk and canopy. Avoid trees that don’t meet your standards, and always look for the strong and healthy ones.

Trees, Shrubs, and the USDA Hardiness Zone Map

Choose trees plants and shrubs using the USDA Plant Hardiness Zone Map

If you have ever gone into the nursery and picked a plant or tree, later to realize it was not suitable to be planted in the environment in which you live, this can be avoided. Besides the scientific plant name and care instructions, you will notice the hardiness zone printed on its tag.

The USDA Hardiness Zone Map splits North America up into 11 separate planting zones. Each individual planting zone is around 10°F colder (or warmer) than the adjacent zone during an average winter. If you’re reading a plant description in a gardening magazine and you see a mention of a hardiness zone, then it’s likely referring to the USDA Hardiness Zone map.

What are Hardiness Zones?

A hardiness zone is based on average annual extreme minimum temperatures across a 30-year period. It’s not based on the lowest recorded temperature in a region or what might possibly happen in the future. Gardeners must keep this in mind as they choose plants and trees, especially if they are planning to “push” the hardiness zone they live in by planting trees and plants not suited for that particular hardiness zone. Something else to keep in mind is that there could be microclimates that won’t show up on a map – even one as detailed as the current USDA PHZM map.

Eastern Zones vs Western Zones

Eastern Zones – The USDA map is great at its job of outlining the different gardening climates of the eastern half of North America. This is a comparatively flat area, which means it can be mapped out by drawing lines approximately parallel to the Gulf Coast around every 120 miles as you progress north. The lines will start to tilt northeast as the Eastern Seaboard approaches. The USDA map also accounts for the special climates caused by the Appalachian mountains and the Great Lakes.

Western Zones – A range of factors including winter lows, elevation and precipitation determine the growing climates in western North America. The weather in the west floats in from the Pacific Ocean, becoming less humid as it moves around the mountain ranges to the west. The growing climates in the west can vary quite a bit compared to the east, where cities in similar zones can grow the same plants in the same climates. The weather – and the plants that can be grown in it – in coastal Seattle are much different than what you can expect in the higher and more inland Tucson, Arizona. This is in spite of both cities being a part of zone 8 of the USDA map.

To find the zone for where you live, see http://planthardiness.ars.usda.gov/PHZMWeb/

Ideal Trees and Shrubs for Alpharetta and Roswell Ga

Many of our customer’s aim to improve their well-manicured yards with trees, shrubs, and flowers. Of course the right sunlight, soil, and moisture conditions are factors needed for these plants to flourish. After being asked for specific species, we created a short list of popular trees and common shrubs that will thrive in Alpharetta and Roswell Ga. 7a and 7b are the zones for North Georgia, so next time you visit the nursery, be sure to look for plants that are conducive to living in these zones.

Other Factors to Consider with the Hardiness Zone Map

There are other environmental factors that determine whether a plant succeeds or fails on top of the hardiness zones. Wind levels, soil type and moisture, humidity, pollution, winter sunshine, and snow are all major contributing factors to plant survival. Whether or not a plant survives can also depend on where it is planted, how it is planted, their size, and their overall health.

The map was most recently updated in 2012 when the USDA adjusted the plant hardiness map to account for the warmer global temperatures occurring over the past thirty years. Refer to this resource when purchasing trees and plants for your garden and landscape.

Interactive Map: http://planthardiness.ars.usda.gov/phzmweb/interactivemap.aspx