Tree Care, The Way It Should Be.
Scottsdale, AZ
MON-FRI: 7:00 AM - 4:00 PM
06 Apr 2017

Preparing Arizona Trees For Monsoon Storms

Being an Arizona desert native, one familiar end of summer event is monsoon season. Usually, this season wills pan between mid-June throughout September. The monsoon storms exchange dry heat for high humidity, and they also create a large thunder and lightning display which may find spectacular. However, the downside to these storms are the number of trees that are badly damaged, at times causing property damages as well.

Monsoon is a term which originated from “mausim”, an Arabic word translating into “wind shift” or “season”. The meteorological events are literally a directional shift in the wind that causes the storms. Throughout winter in Arizona, wind direction blows in from Nevada and California. However, throughout summer, direction shifts, and wind comes from the Gulf of Mexico and the Pacific Ocean, which changes the dry heat out for plenty of moisture. Monsoon season provides Arizona with up to a third of the annual rainfall.

This shift in wind not only creates the three-month season of rain, it can cause violent thunderstorms, dust storms, and in some rare cases tornadoes. The “downbursts” are particularly damaging, which are powerful vortex rings that are characterized as a circle of air rotating vertically. At the downburst base there are outward bursts of heavy wind, close to the ground. Based on the overall duration and size, downbursts may be referred to as a “microburst” or “microburst”.

If you are looking for more detailed information regarding Arizona monsoon storms, it is recommended that you read the ASU School of Geographical Science’s article “Basics of the Arizona Monsoon & Desert Meteorology”.

In Arizona, the majority of storm damages that occur to trees happen from monsoon storms and their powerful winds. In addition, when it rains heavily prior to heavy winds, trees can become more vulnerable due to soil being extremely saturated. This causes the tree, even with strong roots, to have a weaker hold. In situations such as this, a large portion of a tree’s root system can be exposed if a tree falls. The truth is, even our best efforts is not always enough to prepare trees for withstanding the strong winds of a powerful monsoon storm. Although, there are many preparations that can be taken, and should for greatly reducing potential damage to trees during monsoon storms. The most important is to ensure your trees are not ignored or neglected. You should check on them on occasion!

It was stated by the Federal Emergency Management Agency (FEMA), a U.S. Department of Homeland Security branch that: “Three-fourths of tree damages occurring during storms can be predicted and prevented.”

Tree Vulnerabilities

Below is a list of defects that you can look for which cause trees to be more vulnerable to wind and various other weather severities:

Cracking – This is a direct indicator there is a high risk of branch failure occurring sooner than later.

Dead wood – Due to bring brittle, it is unable to withstand pressures compared to a living tree and becomes unpredictable.

Poor branch structure – This can be a challenging aspect to identify, even for a layman. Signs can include long horizontal limbs, excessive leaning, narrow crotches (V-shapes rather than U-shapes), and branches that cross and rub each other creating wounds. In addition, trees with multiple trunks require special attention and maintained care. When there are two trunks (or leaders), with the same diameter and they have a narrow crotch, these are negative factors. To help prevent damage or splitting, you need to choose one main trunk to be dominant. The other trunk will need to have growth stunted by subordination (pruning).

Decay – This can be caught by hallow cavities or fungal growth. These are clear signs of weakness.

Root Issues – These problems can be a bit tougher to spot, such as stem-girdling roots, but they have the highest impact towards the three’s inability to withstand weather conditions, even stand straight. Remember, the tree’s root system is what anchors it down. If a mature tree’s root system is significantly cut, crushed or damaged, or root-bound within the original box it was in from the nursery prior to planting, you might want to consider having the tree removed prior to it being damaged and/or removed by mother nature first, with no warning. A tree with a thick canopy and weak root system make for the deadliest combination when it comes to storms.

Pests – There are many pests that can weaken a tree, like the palo verde borer. These pests are able to exacerbate the health issues of a tree. However, they tend to target tree’s which are already weak and/or sick.

Viewing sky through canopy – One of the more important factors to maintaining a “stormproof” tree, is keeping it thinned. Basically, the thicker the tree, the heavier and more vulnerable it will be to heavy storm winds. This includes trees which are otherwise healthy as can be. Foliage that is overly dense creates potential safety hazards during strong windy weather. Not only is it heavier, a thick, dense canopy does not allow wind to travel through easily, creating resistance that can result in breaking branches, or being uprooted and falling over. The extra weight on branches only increase this possibility, which is the reason thinning is needed. You need to do more than clip the lower hanging branches, which can also cause a lion tail appearance.

For additional details and information regarding storm damages, check out the article “Causes and ‘Cures’ for Tree Storm Damages” by Steven Nix.

When using a Certified Arborist, you will get the best care for your trees. These are professionals that were certified by the International Society of Arboriculture (ISA). These experts have the required experience for recognizing potential hazardous defects quickly, prior to developing into major teaches for your trees. If these things are not taken care of, it can result in splitting, branch failure, even full loss of the tree. Remember, the care of your trees is not only the responsibility of the arborist, but yours. There are many things you’re able to handle.

Below are some basic tips that can help you avoid damage from storms:

  • Fertilize, mulch and water trees properly and regularly to prevent soil compacting.
  • When planting new trees, remember their size at maturity. Avoid planting trees too close to wires, buildings or other objects, on steep banks or ins hallow soil. Certain types of trees will be more brittle and susceptible to breakage. Prior to planting, research the tree and avoid issues later.
  • Prune regularly. This is important, depending on the type of tree you have this could be needed annually, bi-annually or every three years. Trees may need pruning when young too. It is best to have a professional trim your trees to ensure proper structure and avoid issues.
  • Avoid messing with soil around the roots. If excavation around roots is necessary, ensure to minimize cutting of roots or impairing them.
  • Avoid topping trees. Although common, this practice should be avoided as it guarantees the branches will eventually fail.

Although storm intensity varies each monsoon season, Arizona residents can anticipate the arrival ahead of time to ensure protection is maximized. You should never wait until monsoon season is here to begin properly preparing trees for safety of your property, and family. You should always use proactive tree care practices, because money towards maintenance now can be much cheaper compared to unexpected damages from a falling tree. If the tree lands on buildings, fences, or cars the repair costs are even higher! Remember, paying for an ounce of prevention care is worth more than a pound of the cure. Typically, after trees have become damaged there is little that can be done to correct it.

A website of specialists in nova Scotia states: “When a tree is removed, it takes many years for regrowth. So many years, we may not see the tree mature during our life. Trees are our future investment.”

SOURCES: Eastwood, Steve. “Monsoon in Phoenix: What is the Arizona Monsoon?” http://www.About.com

Arizona State University: School of Geographical Sciences. “Basics of the Arizona Monsoon & Desert Meteorology”

“Prepare your Trees for Winter.” Seattle Department of Transportation: City Arborist’s Office: Urban Forestry

Nix, Steve. “Causes and “cures” for Tree Storm Damage.” http://www.About.com

“Simple Tips to Reduce High Wind, Tornado Damage.” www.FEMA.gov

“Storm-Proofing Trees.” Arbor Plant Health Care: Tree Pruning and Preservation Specialists.

Liberty Tree Care Offers Removal in Scottsdale, Mesa & Tempe

If you are searching for tree removal in ScottsdaleMesa or Tempe, Liberty Tree Experts can help! Get a free tree removal quote by giving Liberty a call today at 480-482-9374.

06 Apr 2017
Arizona Ash Tree

Arizona Ash Trees

The Arizona Ash tree, also known as Fraxinus velutina is a popular choice in the area because they can adapt well with the hot sunny environment. Because of this, there are a wide variety of ash trees commonly found throughout Arizona. There are more than 65 ash tree species, which can be found on Wikipedia listed in accordance with the region they are located. However, not all woody plants containing ‘ash’ are an actual ash tree, for example the prickly ash and mountain ash are not from genus Fraxinus (meaning, not a real ash tree).

Types Of Arizona Ash Trees

The following lists just some varieties of ash trees found in Arizona:

  • Chichuahua ash – Fraxinus papillosa
  • Goodding ash – Fraxinus gooddingii
  • Fragrant ash – Fraxinus cuspidate
  • Singleleaf ash – Fraxinus anomala
  • Littleleaf ash – Fraxinus greggii
  • Arizona ash – Fraxinus vulutina (also referred to as ‘modesto ash’ and ‘velvet ash’.
  • Shamel as – Fraxinus uhdei (also referred to as ‘tropical ash’)
  • Fantex ash –  Fraxinus velutina (also referred to as ‘Rio Grande ash’)
  • Green ash – Fraxinus pennsylvanica (also referred to as ‘water ash’ or ‘swamp ash’)
  • Raywood ash – Fraxinus oxycarpa

There are various positive features about the Arizona ash tree, but all things have a downside. The ash tree was labeled by Horticulturist Calvin R. Finch, Ph.D. as being ‘trash trees’ due to them being partly messy and only having a lifespan up to 30 years.

The Arizona ash tree sheds leaves after the growing season is over, making them deciduous. Of course, many tree varieties are considered to be a messy tree, but the positive side is that the majority of ash trees only shed leaves for a couple weeks. Additionally, the majority of ash tree varieties will produce seedlings one time per year (in large amounts), or throughout the year. This all depends on the gender of the tree, and which species it is. When it comes to having an ash tree, and you want your landscape looking clean you will need to rake on occasion.

Most ash trees grow very quickly, which is great for adding shade. However, this also has its downsides. The quicker trees grow, the more likely they are to have surface roots. Ash tree roots commonly grow near the surface anyway, but are more tolerant against rocky soil and alkaline. Watson and Gilman described green ash trees in a Fact Sheet, reporting the surface roots may “lift sidewalks, curbs, and be a nuisance when mowing”. Meanwhile, Finch quickly indicated the quick growth creates another downside, common with ash trees, “Unless they are pruned regularly, they can quickly grow into a tangled mess causing branch dieback.” You should prepare to have ash trees trimmed every few years, which promotes healthy canopy and branch structure growth.

If ash trees are not trimmed, it can lead to branches being weak and breaking when multiple trunks gather too close. This creates a hazard from structural failure. The best approach is to establish a single ‘central trunk’ during the tree’s youth. Prior to planting your new ash tree, you want to ensure the yard will be large enough to old it as well. Depending on the variety of ash tree, they can range from 40ft to 50ft when mature, with some reaching over 80ft high. All ash trees will provide a round, full canopy with great shade.

Similar to other plants, Arizona ash trees are also vulnerable to different types of disease and pests. These include different fungal infections, mildews, rust disease, leaf scorch, and many types of pests from carpenter worms and webworms to mites and borers. The Verticillium wilt is especially harmful as it is soil-borne fungus. There are regions around the country, especially in the Midwest, where thousands of ash trees have been killed off by emerald ash borer’s. However, Arizona ash trees have been lucky enough to evade this issue, so far. You can learn more regarding the emerald ash borer at Emerald Ash Borer. When trees have poor environmental conditions, it increases their vulnerability to these type of issues, making it important to maintain the tree’s defense with proper fertilizing and watering.

With your efforts of maintaining Arizona ash trees, it is encouraged that you research the species available, because each one has their own range of unique qualities. Dennis G. Watson and Edward F. Gilman have created a tree fact series including hundreds of tree and shrub species, both being University of Florida professors. This would be a great resource to learn the basic information on certain trees you’re interested in. They are partly provided by the U.S. Department of Agriculture and Forest Service.

If well maintained, ash trees are beautiful and lush. However, when ash trees are not properly cared for they can become a nasty sight, and increases the risk of tree disease and pests. Although there are ash tree varieties which are rather resistant to drought, the majority of them will require regular watering. The best setting would be flood irrigation systems. Therefore, if your landscape is not irrigated, you should use a garden hose to mimic this, and do a deep watering one or twice monthly.

If you are located within Arizona and you desire to have a healthy and great looking ash tree in your yard, you should prepare yourself for the increased water bill each month. You’ll also want to remember to regularly fertilize the ash tree(s), placing mulch down will also help. By applying mulch, you will increase the quality of the soil, as the organic matter will break down over time. However, mulch also assists with retaining the moisture, meaning watering less often.

Although Arizona ash trees are not the simplest tree varieties to care for, they can be well worth the extra work. When properly taken care of, ash trees will provide amazing shade, and enhance the overall landscape.

Liberty Tree Care Offers Tree Services in Scottsdale, Mesa & Tempe

If you are searching for tree service in ScottsdaleMesa or Tempe, Liberty Tree Experts can help! Get a free tree service quote by giving Liberty a call today at 480-482-9374.

06 Apr 2017
Mesquite Tree

Mesquite Trees In Arizona

Mesquite trees are a part of Arizona. Jay Sharp who is the editor and author for DesertUSA.com has stated that mesquite trees symbolize the Southwestern deserts just as much as scorpions, prickly pear cacti, the Saguaro, Western Diamondback, the Black tailed Jackrabbit and the Coyote do. It is true that the mesquite trees in Arizona are a part of life there just like tortillas and cornbread.

Perfectly Adapted to the Desert

Mesquite trees are a hardy desert tree that has adapted over centuries to live in desert landscapes around and in Arizona. The physical characteristics of these trees help to ensure survival which include the bean pods, root systems and foliage. They happen to grow well in high temperatures and full sun, but they do not tolerate the cold during the winter. They are often found within high elevation areas and can adapt to rocky, shallow soils. The U.S. Department of Agriculture and Forest Service has stated that mesquite trees can live for more than two centuries.

The mesquite trees that are in Arizona are able to survive where there will be hardly any type of rain due to their unique root system. The Mesquite tree’s lateral roots that is has can reach out much further than the canopy ever will. Not to mention they happen to have tap roots that go very deep to get water  well beyond 150 feet down, however 50 feet down is more typical. So, the mesquite tree will have access to water both at the bottom and top layers of soil.

The leaflets of the mesquite tree are tiny and waxy and they can retain moisture by minimizing the moisture that is lost through transpiration. The mesquite tree is deciduous which means that they give great shade during summer but will drop leaves and allow the sun to shine on it during the winter to keep warm. During times of extreme drought, they will lessen transpiration even more by prematurely dropping their leaves.

Mesquite trees are considered to be of the legume family which means that it is adapted to arid environments. They also have the ability to fertilize themselves and the surrounding plants using a symbiotic relationship with the soil bacteria colonies. The bacteria that will inhabit the roots of the mesquite tree will fix or convert atmospheric nitrogen which makes it available within the soil. It is a mineral that is essential for the germination and growth of plants. Most gardeners will use the same type of process to enrich their soil by actually using cover crops that are nitrogen fixing.

The mesquite trees that are within Arizona are very prolific. The beans from the tree are very durable when encased within their pods. If a seed has been undisturbed then it can be viable up to about 40 years. Animals will play a big part in the scarification of the seeds which is actually need for germination and the dispersal through their fecal matter.

The Appearance

A mesquite tree is really easy to idenfity, as they look like giant fern bushes. They are able to reach up to 30 feet tall, but the average tree that is growing in the wild are going to be half that size. Most will have multiple trunks and under the harshest conditions, the mesquite tree will look more like a bush than a tree. The branch structure will be jointed and twisted which adds to their uniqueness. During the early summer and spring, they will have finger shaped items that are covered in tiny little flowers. They happen before the formation of the bean pods which are a brown color, but it can vary based on the species. Most mesquite trees will have thorns which can be very long or short and very sharp.

The Arizona Mesquite Tree Natives and their Cousins

There are around 40 different mesquite varieties that are found all over the globe, but there are only 3 species that are native to Arizona. They not only grow in the Mojave Desert, but also in the Chihuahuan and Sonoran deserts. The range of these trees is amazing as they span from California to western Texas, from southern Utah to Mexica. They are able to survive in a variety of areas that are found within this area.

The 3 mesquite tree species for Arizona are:

  • Prosopis pubescens: These are called screwbean mesquites which earned its name from the coiled or spiraled shape of the seed pods.
  • Prosopis glandulosa: Is called the Texas Mesquite or honey Mesquite. They are normally have a weeping form and is very pretty.
  • Prosopis velutina: Is called the native mesquite or Arizona mesquite. It is also called the velvet mesquite because of the soft hairs that cover the young. They are shaggy and snarled and are very popular in nurseries and will grow well on golf courses and lawns.

Besides these mesquite trees, there are a lot of other types of mesquite trees that happen to grow within Arizona. There are hybrids of Screwbean, honey and velvet mesquite, which happen mostly where the species happen to overlap. There are other nonnative species which originate from South America. There is the Chilean mesquite and Argentine mesquite as well as other hybrids and varieties. The nonnative species will be suited to the climate that is here just like the ones that are native to Arizona. For instance, the Chilean mesquite isn’t as tolerant of winter temperatures in Arizona.

Despite all of the positive qualities, mesquite trees are actually considered to be an invasive weed. In most countries outside of South and North American where they have been introduced, they are extremely invasive and a big issue especially in Australia.

Mesquite trees are also cursed by the inhabitants within the Arizona desert. Cattlemen especially hate them, but overgrazing by herds over the previous centuries have really made the problem that they complaint about, which is that the competition with the grass. In areas that are overgrazed, the cattle are not only threatening the population of natural grass that have often competed with mesquites for water, but it also helps the trees by eating as well as then dispersing mesquite seeds. All of the efforts that have been made to stop and control the mesquite tree have failed and it has been stated to be ineffective and impractical. Whether it be done by herbicide, physical removal, or fire, the costs and side effects to the environment by trying to control the population and spread has made it an issue without an easy solution.

Many arborists state that whether it is a welcomed thing or unwanted item, the mesquite tree belongs in the desert. They have evolved in the desert and they actually play a main role to the desert ecosystem.

Historical Significance and the modern uses

Over the centuries, there hasn’t been another plant that has played a vital role to the population within the southwestern United States than the mesquite tree. Mesquite trees that are all over the southwest have saved plenty of lives. The have provided nutrition for the men on the 1841 Texas Santa Fe Expedition as the beans from the mesquite tree were nutritious, sweet and protein rich.

Another type of food that will come from a mesquite tree within Arizona is honey. The swarms of bees that are attracted to the mesquite flower nectar will do more than just fill in as a role for pollinator. However, this doesn’t complete the list of foods that come from the mesquite tree. Even the sap has been used as black dye or sweet gum.

When the pods without or with the beans inside is called Pinole. It can be used as a flour or as a spice or condiment because of the sweetness. The flour is also considered to be quite healthy for those who are diabetic, as the flour is sweetened using fructose, which your body is able to process without having to use any insulin. That is just a single advantage that a mesquite tree has to offer.

There are also other parts of mesquite trees that have been used as a remedy for various illnesses by settlers and Indians in the frontier era. For instance, the mesquite tree was used to ease and heal colic, sore throat, ailing eyes, headaches, flesh wounds, dysentery, and diarrhea.

The pods, wood and bark of the mesquite trees are very popular to use for barbeques. The dry wood will burn slowly and hot with very little smoke. It has a very unique aroma. Some have insisted that burning the pods with the wood chips and charcoal can make the flavor much richer. Besides for cooking and for heat, the wood has also been used to construct Spanish missions, ranch fencing and houses, and colonial haciendas. The Native Americans have used the mesquite wood for arrowheads and spears, and the bark was used to make fabrics and baskets. The thorns from the tree were often used as a needle. Now the wood is valuable for sculptures making and furniture because of the gnarled patterns and dark colors.

The Arizona Mesquite trees are not only beneficial for humans but for wildlife as well. Animals will use the mesquite trees as food, shelter and habitat. During the fall and summer, the mesquite beans will make up about 80% of a coyote’s diet. The bean pods can even be used for fodder for livestock whenever the grass isn’t enough.

Maintenance, Treatments and Issues

Even though the mesquite tree doesn’t need a lot of maintenance, the ones that are growing around your home could use some extra care whenever there is a very hot summer or during extended droughts. Sun-scorch happens to be is one issue that could hurt a mesquite tree that has been planted within the landscape, however they aren’t as susceptible as a citrus tree. Deep watering every now and again and some occasional fertilization will help to make sure that the mesquite trees are around won’t decline in beauty of health.

During the times when there is plenty of rain, mesquite trees will not need any extra watering. However, when there is a drought, the leaves will become sparse and will allow more sun through the branches. This is caused by the need in cities to keep mesquites thinned out to survive heavy winds and storms, so that it won’t cause damage to structures and homes. If the bark is exposed to too much sun, sun-scorch can happen, especially in direct sunlight. Sun-scorch will cause permanent damage to the sapwood layer under the bark. The dead tissue and cracked bark can cause a secondary infection and infestations like sooty canker and bark beetles.

Sun-scorch can be prevented but it can’t be undone. Reflective paint when placed on vulnerable branches will help a mesquite from being sun damaged. The branches that are affected, need to be removed. The best way to prevent sun scorch is to encourage leaf growth to protect the tree during hot parts of the year by watering and fertilizing. If you give the tree ammonium sulfate once during spring, it helps. Unless it is fed by sprinklers or drippers, water the tree deeply every 2 months from early spring to fall. If monsoons bring plenty of water, then you will not need to deep water.

Mesquite trees that are planted in someone else’s property may not be as strong as the trees in the desert. Most likely they are nursery grown that was planted for use in landscaping and has spent time in a pot. The more time that the tree spends in a pot, the more likely it is to be root bound. Impaired root systems can make a tree struggle to receive what water they need to live, but also makes it prone to falling over because the anchoring isn’t very sturdy. You can try as hard as you want, but it is near impossible to make a wobbly tree anchor into the ground. Whenever you place stronger stakes and wires and putting the tree back in place when it falls, then you are just prolonging the inevitable. The absolute best thing that you can do for a severely unstable tree is to just remove it and then start all over using a healthy tree.

Check out this article that talks about wobbly mesquite trees to gather more information on how you can prevent it and even fix it: http://ag.arizona.edu/gardening/news/articles/17.29.html

If nothing else, we certainly do hope that this article about mesquite trees within Arizona can help to increase the appreciation for this wonderful native plant as a tree that certainly belongs in the desert that all Arizonan’s call home.

As J. Frank Dobie once stated, “Primroses burn their yellow fires, where grass and roadway meet; feathered and tasseled like a queen, is every old mesquite.”

Liberty Tree Care Offers Tree Services in Scottsdale, Mesa & Tempe

If you are searching for tree service in ScottsdaleMesa or Tempe, Liberty Tree Experts can help! Get a free tree service quote by giving Liberty a call today at 480-482-9374.

17 Oct 2016
Fallen Tree (2)

Tree work takes another crane (video)

Here is another example of a crane overturning while helping remove a tree, this time in Largo, Florida, on Sunday. This time it involved a 20 tonne boom truck painted in the livery of A-OK Crane Service of Tarpon Springs.

The company specialises in tree work and knows how tricky it can be. It seems that in this case the crane was lifting a substantial section of the tree and had started to slew when the crane overturned. The outriggers remained solid, so it looks as though it was a classic overload – either actual or dynamic as the section twisted and moved out of radius.

Click To Call