Identifying Tree Hazards

Tree Service Walnut Creek

Going to a park or a natural park brings serenity and peace.  The trees in these areas provide an area of comfort and relaxation.  However, these trees can also pose a danger.  A fallen branch or even an incubator for pests could pose problems for you or your surrounding area.  So how does one go about identifying tree hazards?  Here are some ways to recognize them:

Separation

When you are looking at trees, it’s important to identify points where there maybe cracks or splits.  If these cracks or splits go into the branch or seem to be covering the entire part of a limb, then this would be a method for identifying tree hazards.  Should the separation be going down the middle of a trunk, this is a critical scenario that needs your attention.  A certified arborist would be the right person to help you identifying the tree hazards.

Dying

Over time, parts of a tree may start dying.  To protect from hazards, knowing areas that maybe failing and removing them promptly will help protect you and your surroundings.  If you do not address them, then they could cause a limb to fall or break off.

Disease

Trees that get diseased can be a huge problem.  Some diseases cannot be cured but others are solvable.  A common sign of disease is the loss of bark without any bark growing in its place.  Another indication of disease is the existence of fungus.  If parts of a tree have a mushroom, this could be indications that the tree is sick.  Should you see these signals, contact a certified arborist.

Leaning

When a tree starts leaning in a dramatic fashion, this is another sign of problems.  It showcases that the tree maybe structurally failing  This is another situation where a certified arborist should be called in to evaluate the situation.

If you have questions or need to speak with a Certified arborist, contact Sexy Trees.

Heat Impact on Trees

Tree Service Alamo

When we were younger, we learned about photosynthesis.  This is the mechanism by which trees “breath”.  It is the process to convert carbon dioxide to oxygen.  But, how does heat impact trees and this process.  It has a dramatic effect.

Heat Impact

During warmer weather, photosynthesis rates slow down and put more pressure on the trees.  In fact, the heat impact on trees is even more substantial as trees are losing water through their leaves while having lower photosynthesis rates thereby causing a dramatic impact on a trees ability to maintain itself.

Sun Rays

The heat impact from sun rays do result in some tree protections.  Trees as with humans have HSPs.  These are special proteins within them to help protect your body’s proteins from the higher temperatures.  They work to allow for continued cell functioning.  Beyond HSPs, there are other nutrients that help during the heat.  For instance, calcium can provide further stabilization assistance for the body.

Solutions

Beyond the natural protections, you can do a lot to protect your plants and trees.  Here is a short list of recommendations:

  • Modify watering to higher amounts to give your trees and plants more nutrients over the summer months.  Many times, this involves doubling or tripling the watering times during the warmer months.  We recommend spreading this out over the course of a 24 hours rather than merely extending the run time for each iteration.
  • Utilize mulch to keep moisture in and keep the trees cool.  A healthy layer of about 1-2 inches is recommended.
  • Use fertilizer and high quality soil to give your plants the right nutrients.  If you’re unsure, get your soil tested and then mix it with the right combination of nutrients.
  • Do not be afraid to use continued soil sampling to maintain the right balance.

If you have questions about how to maintain the right balance and protect your landscaping, contact Sexy Trees certified arborist.

Japanese Maple Tree Care

Danville Tree Service

Japanese maples are generally hearty, healthy trees. Japanese maples are pretty easy to raise and care for. They tend not to succumb to disease or infection, but will perform poorly when their needs aren’t being met.

Your Japanese maple will appreciate it if you keep these things in mind:

Don’t Allow Japanese Maple Tree Roots to Sit in Water

If your Japanese maple doesn’t look healthy and well, there’s a good chance that the roots are overwatered. If the soil is too heavy, contains a lot of clay, or doesn’t drain well, that can be affecting the health of the tree. 

Before planting a Japanese maple, you can be sure that the ground is properly aerated with appropriate soil, and plant with the root ball only half burried. Once a tree is in its place, your best move is to monitor soil wetness. Be sure not to overwater, and your tree with thank you.

Don’t Spray Foliage

When you spray the leaves of a tree (any tree really) the water droplets act as little magnifying glasses, concentrating the sun’s power on a small spot until the water evaporates. Some leaves are bothered by this more than others. Although it certainly won’t kill your Japanese maple, this tree would prefer you spray the ground rather than the leaves. Or if you must spray the leaves, don’t do it on a sunny day, please. 

Don’t Over Fertilize 

These trees like soil rich in nutrients, but not rich in commercial fertilizers. In fact, they do better with no fertilization at all rather than many of the fertilizers available at the plant store. If you think your Japanese maple needs fertilizing, consult your trusted arborist.

Threats to Your Japanese maple tree

Of course, sometimes outside influences do attack your tree. Some of the problems that arise for this particular type of tree include: 

Pseudomonas Syringae

Pseudomonas syringae is opportunistic bacteria that usually attacks plants that are already damaged by other threats. It affects woody plants, including Japanese maples, which can display spotted leaves, and veins within the leaves can be blackened when infected. It can also cause dieback of small branches.

To learn more visit: Pseudomonas Syringae

Verticillium Wilt

Verticillium Wilt is caused by a soil borne fungi but usually attacks plants that are stressed by other things like drought, frost, or wet soil. This fungus lives in the soil as small, darkened structures called microsclerotia. These microsclerotia may lie dormant in the soil for years. 

One or more branches, usually on one side of the tree, wilt suddenly. Sometimes the leaves turn yellow before they wilt, or leaf margins turn brown and appear scorched. Branches that die will need to be removed.

The best prevention for this fungi is a strong, healthy tree. There is some evidence that unbalanced fertilization (too much or too little nitrogen, for example) exacerbates this disease, but there’s no specific prevention or treatment. 

To learn more visit: Verticillium Wilt

Japanese Maple Scale

Scale insects are sucking insects that extract plant sap from the host plant. These scale have an armored exoskeleton, usually white. Scale insects are predatory, generally attacking unhealthy plants. The healthier your plants, the less likely they are to be attacked by scale insects. 

In trees with heavy infestations scale can cause premature leaf drop, branch dieback, or death of the plant. On Japanese maples, scale insects usually only attach themselves to the stems of the tree and not the leaves, so scrubbing the tree with soapy water and a scrub brush may solve an infestation.

To learn more visit: Japanese Maple Scale

Tree Borers

Tree Borers are a group of insects that lay their eggs on or inside of trees, where the young larvae eat through living tissues. Anything that bores into tree stems is commonly called a tree borer, whether it be beetles or clearwing moths. The symptoms and treatments are the same.

You can avoid initial infestation by having a professional prune your tree, eliminating unnecessary tree damage. Also, adding mulch around your tree and providing it with appropriate water and fertilizer will help it fight off borers and heal any previous damage.

To learn more visit: Tree Borers

Anthracnose

Affected trees often show spots that may look like scorching on the leaves. This fungal disease is prevalent during rainy seasons and conditions of high humidity. Rainy weather can empower this fungus, and drought can slow it down or stop it. 

Anthracnose remains active on leaves and twigs that have fallen to the ground, which helps it spread. Eventually spores are released from dropped leaves and re-attach themselves to the tree or new leaves. The easiest method of control is to keep dead twigs and leaves raked up from under your trees, and keep leaf litter that you suspect out of your compost pile.

To learn more visit: Anthracnose

Powdery Mildew

Powdery mildew covers leaves and stems starting with the underside, but becomes most obvious when it shows on the top of leaves with a white or grey powdery film. It thrives in hot, or hot and humid conditions, especially where a lot of plants are grouped together and air circulation is poor.

Trees are weakened by this mildew, but rarely seriously injured. Rake up and dispose of any affected leaves. It’s best not to put the affected leaves in your compost bin. 

Cut off affected portions, restrict fertilizing, water only at the soil level and do what you can to increase air circulation to control a powdery mildew infection.

To learn more visit: Powdery Mildew

Aphids

Aphids feed by attaching themselves to the leaves of a plant and sucking nutrients out of the leaves. Resulting leaf damage can be unattractive, but your Japanese maple tree will likely not suffer more than some leaf loss. They have a number of natural predators including lady bugs, so they usually don’t last long once they appear. You can treat them with insecticidal soap or rinse them off with a blast of water.

To learn more visit: Aphids

Phytophthora Root Rot

This is a fancy way of saying that the root system is rotted because of excess moisture. Japanese maples are susceptible because they don’t tolerate wet heavy soils that drain poorly. Of course solutions include planting shallowly, and never overwatering. If you’re having a problem with root rot, consult a qualified arborist for advice.

To learn more visit: Phytophthora Root Rot

 

Why Cash Paid Contractors Are a Threat to Your Property

Concord Tree Service

Does it seem like a hassle to locate licensed, insured contractors for your jobs? Do you know that even when you hire what appears to be a quality contractor, they may be using staff that they hire and pay cash the same day?

It can seem appealing to hire day laborers, or companies that do hire them. Or maybe you want to hire a friend or neighbor? You may even know a cash worker to have completed projects like yours before. But there are also overwhelming unknowns when you work with cash paid contractors.

And all these problems are avoidable simply by hiring a reputable company with a full staff on payroll.

How Could It Go Wrong?

Off Payroll Staff Aren’t Traceable.

No paperwork means a worker can’t be held accountable for their mistakes, and has no incentive to perform their job at top quality. All they have to do is get through the day with the appearance of competence. The long-term quality of their work has no relevance to them.

Also, without documentation of exactly who the workers are, there’s no documentation that proves the staff has any safety or skills training, and no way to prove or disprove anyone working the project are qualified to do the work. When it can’t be demonstrated that the workers are qualified or unqualified, there’s very little incentive to be picky about who’s on a work crew.

 

Only Real Staff Get Quality Training

Employers have multiple incentives to train their staff well. The financial investment of on-the-job training, safety certifications, and ongoing skill training makes perfect sense when an employer is fostering a long-term relationship with their team.

But cash workers have no formal relationship to their company, foreman or crew leader. Why care if someone gets better at their job, knowing you may never see them again? As a result, the workers that take cash jobs rarely have anything more than the basic knowledge they need to complete a job. A job where nothing unusual happens, and nothing goes wrong.

 

You Have Liability

The liability for workplace injuries, damage to water, power, or sewage lines, or work that’s not up to code would normally fall on your licensed, insured contractors. When you’re working with whoever showed up that day to earn cash, then the liability is yours. Both the financial liability and the legal liability.

If you’re hoping your homeowners insurance will save you from paying medical bills and lost wages to an uninsured worker that gets hurt on your project, we’ve got bad news. Standard homeowners insurance or landlord liability insurance exempt damage caused by the knowing use of illegal or unlicensed contractors.

Landlords need to be aware of what their property managers are doing. When a property manager brings in an unlicensed or uninsured contractor, they are in danger. Courts have generally held both the property owner and property manager liable for anything that goes wrong.

 

Uncertainty that Licensed Insured Contractors Solve

If everything goes perfectly to plan, then insurance doesn’t matter, theoretically. If you’re willing to gamble your home or property on that unlikely event, then don’t worry I guess. But if you want to be sure you won’t suffer unnecessarily for mistakes or unforeseen challenges, you NEED to work with licensed, insured professionals.

Licensed and responsible contractors carry a lot of insurance, from contractors’ liability insurance to workers compensation insurance. All these different forms of insurance coverage ultimately protect the customer if things don’t go according to plan. It’s a requirement that to have a contractor’s license the applicant must carry a minimum level of insurance.

Sexy Trees is a licensed, bonded and insured Diamond Certified Arborist with a full staff of trained tree care specialists. For more information on finding a quality contractor, visit the Contractors State License Board.

How Does Mistletoe Harm Your Trees

Mistletoe Removal

Do you have mistletoe on your property? If you have mystyldene, all-heal, bird lime, golden bough, or devil’s fuge, then yes. You have mistletoe.

It’s leaves are part of a fun Christmas tradition that encourages you to a kiss while standing under it. But it’s actually very harmful to your trees. Although the evergreen plant is quite beautiful with the fragrant flowers it produces in winter, this poisonous berry does more harm than good.

Mistletoe is native to Nevada, California, Arizona, Baja California, as well as Sonora and Sinaloa, Mexico. Mistletoe is a semi-parasitic pest that grows on branches of deciduous trees, which his why you’ll want to have it removed by a professional.

How Does Mistletoe Harm Trees?

Mistletoe is a semi-parasitic plant that sends out its root-like structure into tree branches. This small evergreen shrub then steals necessary water and nutrients from its tree host. The mistletoe then continues to grow larger as it continues to damage the tree.

Although mistletoe spreads slowly, when not stopped it can be harmful to trees. When a tree is infested with the plant, it can become stunted, less vigorous and even be killed if additional stressed from other environmental factors are present. Things like root damage, drought, insect infestation, extreme temperatures, disease and mistletoe infestation can all kill an otherwise healthy tree.

If you see that mistletoe is growing on your trees, you can prune out the infested branches. But just cutting it with the branch won’t kill mistletoe; it’ll only slow down its growth. You can’t get rid of mistletoe unless you remove all the infected limbs of the tree. Special care must been taken to avoid over pruning, which is why you want to hire a professional arborist to walk this fine line for you. 

A professional arborist prune in a way that balances your need to eliminate mistletoe with your trees need to retain branches. At the same time they can also aid the tree in it’s recovery. Removing other stressors from your trees can help ensure their recovery and resistance to future infections.

Tree Pruning Tips in Time for Spring

Alamo Tree Service

In preparation for the spring growing season, there are a few things you can do to help your trees stay healthy and strong for years to come. These aren’t large tasks, in the scheme of things. As you know, trees don’t ask much of you in general. With a few days of attention a year, you can have hearty, lush trees for years or decades.

Start Before Spring Growth Begins

While your deciduous trees are still bare, visually check them for signs of disease or damage that might be masked by full leaf cover later. This is also the best time to prune, while pruning is least likely to spread pests or diseases that are inactive in winter. Target dead, unhealthy, or dangerous branches for pruning, and follow safe tree pruning tips.

If you have any doubts about proper tree pruning, educate yourself on tree pruning. Hire a professional if you aren’t sure you can do it in a way that’s safe for the tree, and safe for all people and property involved.

Readying for Blooms

Before your trees bloom, they’ll need to be in good health to get through the energy expenditure of blooming! Ensure they’re prepared by using a long-lasting fertilizer at the very start of Spring. There are multiple fertilizing and nutrient-delivering options available, talk to your local arborist if you’re not sure what option is best for your tree and goals.

Spring in Full Swing

When spring has fully arrived, it’s time to renew mulch under your trees, making sure you’re using an appropriate mulch for your landscape and applying it properly. This’ll prevent weeds and grass from leaching nutrients away from your trees, and preserve moisture for your tree’s roots.

If you need help with pruning, fertilizing, or other tree care, call Sexy Trees (925) 233-6877

Watering Christmas Tree Displays: Tips from an Arborist

Walnut Creek Tree Removal

If you’ve brought a living Christmas tree into your home, you’ll need to take proper care of it. Otherwise you may have to witness it’s death and decay right in your home! Luckily, keeping a cut tree alive indoors is not extremely complicated. At the same time, there’s some bad information out there about what your tree needs, so let’s clear a few things up:

 

Cutting Your Tree

When the tree’s going to be stored more than a couple days, put the trunk in water and store it in a cool, shaded and protected area like an unheated shed or garage.

If the tree was harvested within the last 12 hours, it’s not necessary to recut the trunk before putting it in water. After longer than 12 hours, the trunk needs recut for maximum water uptake.

Cutting off a disk of wood about ¼” thick from the base of the trunk is all you need. Make the cut perpendicular to the trunk. Not at an angle or in a v-shape. Those fancy cuts make it far harder to steady the tree in the stand and reduce the amount of trunk submerged in the water.

Don’t drill a hole in the trunk to try to help it hydrate, this only hurts the tree.

 

Using Tree Stands

A tree stand needs to provide at least 1 quart of water per inch of stem diameter. For most Christmas trees, the treestand should hold at least 1 gallon of water.

Make sure your tree stand is big enough, not that your tree trunk is small enough. Don’t whittle down the sides of the trunk to fit a stand. The outer layers of wood are the most efficient in taking up water and should be retained.

Check the stand daily to make sure that the level of water is above the bottom of the trunk. Many stands will still be holding water even when the base of the tree is no longer submerged.

 

Hydration and Watering Christmas Tree Care

A cut tree will absorb a surprising amount of water, particularly during the first week, so replenish the water daily.

Displayed trees suffer when they’re near sources of heat like fireplaces, heaters, heating vents, and direct sunlight. Lowering the room’s temperature will slow the drying process, reducing the amount of water the tree needs.

Cold, cool, lukewarm or even very warm water are all fine and won’t affect the tree’s ability to hydrate.

Check your tree daily for dryness. It’s easy to run your fingers across the needles to see if they’re dry or brittle. If they break or fall off easily, the tree is dangerously dry and should be taken outdoors away from the house.

A well-cared-for tree will reliably remain fresh at least three to four weeks before becoming too dry.

 

Don’t Get Too Creative

Anti-transpirants for Christmas trees won’t help you much at all, even though they may technically reduce some evaporation, it’s not enough to make your tree last longer indoors.

Adding water-holding gel products to the stand reduces the amount of water available to the tree, making it a pretty bad idea.

Don’t use additives in the water. No floral preservatives, commercial tree preservatives, molasses, sugar, bleach, soft drinks, aspirin, honey, or anything else. Clean water is what trees want to drink, and how you’ll get the best results.

Flame retardant products can give flame retardance while reducing your tree’s ability to stay hydrated, losing the advantage they gained.

 

Are You Harming Your Soil Ecosystem?

Danville Tree Pruning

The trees on your property are dependent on your soil to be a healthy, safe place for them to grow or just stay alive. If your soil suffers, the trees suffer. If your soil thrives, the trees thrive. You need to be sure you aren’t harming your soil, which would threaten your trees.

However, to do that, you need to know about some of the most common practices which lead to soil damage.

Using Biocides

One of the most common ways people harm soil is by using biocides, which destroy life inside the soil. Healthy soil is full of microorganisms that promote tree growth and nutrition. Unfortunately, when plants are sprayed with pesticides to kill insects, they also end up being absorbed by the soil, which becomes damaged as a consequence. Biocides include everything from pesticides, weed killers, and fungicides, etc.

Moreover, even if the biocides don’t have an immediate measurable effect on your trees or soil, the can remain for decades and damage life in the longer run as they build up.

Removing Vegetation

Another common practice that leads to the damage of soil is through the removal of vegetation. While some people remove ground covering plants to create some landscaping goals, you also need to understand that complete removal leads to the soil being exposed. It also loses the connectivity created by root systems. This, as a result, makes it vulnerable to forces of erosion like wind and rain.

When the soil is exposed to these threats, healthy topsoil is lost, which is a primary layer for plants to grow because it has the most organic matter. Moreover, when the soil is bare, it receives more sunlight, and this causes moisture to evaporate. Finally, it becomes compacted as it dries, which make it harder for the soil to absorb rain.

If you don’t want to destroy the soil, you need to understand the soil’s needs. You need to know the soil needs to be covered, and plants provide this shelter. 

Allowing Soil to Dry Out

When soil is allowed to dry, the rich environment or microorganism that call it home suffer. Organic matter thrives in soil, from living fungi, to earthworms and healthy bacteria, and they all need water to survive.

Remember that your trees can’t make these decisions for you, but it matter to them when you make choices soil management. Swear off biocides, grow ground covering plants, and keep your soil from drying, and your trees will thank you. Silently, by living a long healthy life. 

Cambistat: A Tree Care Solution

Concord Tree Pruning

As a property owner, you want to keep your trees healthy. In hard California droughts trees are susceptible to falling ill, and even dying. So it’s imperative that you protect your trees against stressors, and keep them healthy for their longevity.

This is where Cambistat can come in. Below, we’ll discuss some of the incredible health benefits Cambistat can give your trees and the protection they can give them in the harshest of times.

 

 

Why Cambistat?

Cambistat is a powerful tool to fortify your trees against some of the harsh Californian summers. With these nutrient treatments on your side, it’s easy to ensure that your trees will be healthy throughout any climate. There are a wide array of ways that in keeps your trees in tip top shape.

Here are our top 3:

 

1. Drought Tolerance

According to drought.gov, California is experiencing one of its longest droughts in state history. Having started in 2011 and extending up to present day, California has sustained 357 weeks of drought, at one point affecting 58.41% of Californian land. With over half of the state affected, chances are that your trees fall into one of these drought affected areas.

When it comes to Californian summers, nothing is better that Cambistat at preparing your trees to do well in drought. We know that being able to protect your trees from water shortage is a high priority. Thankfully, Cambistat is able to help protect against drought, by equipping your trees for record breaking dry spells.

 

2. Improved Root Systems

A strong, capable root system is key for any healthy tree. Without a stable support network to draw nutrients and water from the soil, any tree, even in the best of conditions, is doomed. When Cambistat is applied to your trees, there is a significant growth and production of fibrous roots.

Furthermore, Cambistat can be applied in any Californian weather (assuming there isn’t a torrential flood or that the state freezes over). Because Cambistat is so active, retreatment is only needed every three years, and will be able to keep your trees growing strong.

 

3. Growth Control

A final useful purpose of Cambistat is growth control. While every green thumb loves to see some vegetation, the unfortunate reality is that trees and their limbs often get in the way of urban growth.

Cambistat is able to help you and your trees by providing growth control. As your trees mature, with grooming, the treatment can help maintain a reasonable size for your tree, and ensure that the “leggy-ness” of your tree doesn’t get out of hand. This means your tree wouldn’t collide with sightlines, encroach over roads, or be a danger to power lines in a bad storm. Using Cambistat can ensure that both you and your neighbors are satisfied with your tree.

Cambistat is a logical and easy solution for any Californian land owner looking to ensure their trees stay healthy. Schedule an application, and watch your trees thrive.

Protecting Trees During Construction

Berkeley Tree Pruning

When building new structures, existing trees are often the main features in your landscape design, and need to be carefully preserved. But how do we go about protecting trees during construction?

Unfortunately, many times pre-existing trees have difficulty surviving construction. This can lead to unsafe or hazardous conditions and expensive post construction removal costs. With planning, communication and cooperation, existing healthy trees can be preserved with minimal effort and expense. Trees need their roots protected during the construction process.

 

Plan With an Arborist

Always have a professional arborist involved in the planning (and maybe execution) of the project. Small changes in the placement or design of buildings, driveways or utilities can make a difference in protecting trees during construction. Alternative construction methods are generally easier than growing a new 20 year old tree. If utilities can’t be routed away from trees, tunneling or hand dug trenches are worth considering, to place the utilities directly below the trunk, where they do the least damage.

 

Inventory Your Trees

Map the location, species, size, and health of each tree on the development site. This can help you decide which trees to keep, which to remove and which to put limited effort into keeping. Your arborist can tell you which trees probably shouldn’t be selected for preserving. These should be removed prior to construction. Be sure to prune trees that need additional clearance to make room for future structures and construction equipment.

 

Tree Protection Zones

You’ll want to erect sturdy fencing around each tree that is to be preserved before construction starts. For each inch of trunk diameter, the fence should be about one foot from the trunk. So a ten inch diameter trunk gets fencing 10 feet from it. A three inch layer of mulch should be applied to the area within the TPZ. This provides your tree with both above and below ground protection.

Mount Tree Protection Zone (TPZ) signs to the fences and ask all construction personnel to keep fencing intact. No trenching, digging or soil disturbance of any kind should happen in the TPZ. No building materials, waste materials, excess soil, paints or supplies should be within the TPZ. The area should be considered off-limits.

 

Before Construction Starts

A healthy tree is more likely to survive the construction process than one that’s stressed. Be sure trees are receiving proper irrigation in addition to rainfall if needed. Prune dead, diseased, or hazardous branches. Also remove branches that will interfere with construction equipment and machinery.

 

Stay Engaged: Protecting Trees During Construction

Visit the construction site and inspect your trees on a regular basis. An arborist’s presence alerts workers that trees are important and their careful treatment is important. Should damage occur, begin repairs as soon as possible. Immediately inform the builder/contractor of any violations in the tree preservation plan and photograph any damage. All protective fences should remain in place until all construction workers have left the site.

 

Minimize Soil Compaction

Construction equipment and vehicles are a common cause of soil compaction. Have your project manager limit access points and designate routes on and off of the property. The fewer, the better. They should also designate areas for parking, storage of equipment, construction materials, excess soil, etc.

 

Grade Changes

Grade changes directly affect the roots of a tree. This happens either by removing roots when lowering the grade, or suffocating the roots when raising the grade. It can also change drainage, creating excess water in some areas and not enough in others. Except where absolutely necessary, do not change grade within the Tree Protection Zone. If raising the grade is necessary, we recommend not adding more than two inches of fill each year. Lowering the grade removes important roots and your rich topsoil. If a lowering of the grade is necessary, have your arborist root prune at least four to six months before construction starts and use a regular irrigation schedule before during and after root pruning.

 

Post Construction

It can take several years for trees to overcome and adjust to the injury that occurs during construction. These changes can be stressful, and trees that are suffering from stress are naturally more prone to insect and disease infestations than healthy trees. It is important to establish a long term maintenance program with your arborist to monitor and maintain the trees.