27 Nov 2019

Top Poisonous Trees To Avoid

Trees can be Mother Nature’s most lethal weapons. They may be disguised with ordinary leaves and branches, yet armed with deadly poison. Learn about the most dangerous ones by checking out the five top poisonous trees to avoid.

1. The Manchineel Tree

The Manchineel tree has the dubious honor of holding the Guinness World Record for World’s Most Dangerous Tree.

The Manchineel has leaves that are covered in caustic sap so poisonous that the slightest skin contact could cause an eruption of agonizing blisters.

It’s dangerous to even inhale the air around the tree. A single bite of its apple-like fruit may also cause blistering, horrific pain and even death. <i>All</i> parts of the Manchineel are extraordinarily poisonous.

2. Sandbox Tree

The sandbox tree is considered to be one of the world’s most lethal trees. About 130 feet tall and covered with spikes that resemble a Medieval torture device, the sandbox tree’s fruit looks like cute little pumpkins.

However, once they dry into seed capsules, they turn into dangerous grenades. The capsules detonate with a loud bang and shoot the seeds at speeds up to 150 miles per hour and distances of more than 60 feet. This shrapnel can seriously injure anyone in its path.

The sandbox tree also has sap that can trigger a searing rash and can cause blindness.

3. The Suicide Tree

The suicide tree’s highly toxic seed has been used in more suicides than any other plant in the world. The seed, which is often undetected by pathologists and coroners, has also been used in countless murders. Its taste can be easily concealed from victims with sugar or spices.

Indigenous to India and Southeast Asia, the suicide tree contains a substance called <a href=”https://www.sciencedirect.com/science/article/abs/pii/S1752928X18302762″>cerberin</a>, which is astonishingly toxic at low doses and stops the heart. This is why many cerberin poisonings are often written off as heart attacks.

4. Hemlock Tree

Poison hemlock is notorious for Socrates execution in 399 BC. It was widely used in ancient Greece for murder and suicide.

Every part of the hemlock tree is poisonous. Hemlock’s toxins are so powerful that people have died after eating game birds that ingested the seeds. Hemlock’s leaves have a distinctive musty smell.

Hemlock’s stems are smooth and spotted with red and purple, and their leaves resemble fern fronds. Its clusters of small, white flowers are deceptively beautiful.

5. Gympie Gympie Tree

The Gympie Gympie tree’s cute name belies its ability to inflict excruciating pain via tiny stinging hairs. Entomologist and ecologist, <a href=”https://theconversation.com/profiles/marina-hurley-5537″>Marina Hurley</a>, of the University of New South Wales, described its sting as feeling like “being burnt with hot acid and electrocuted at the same time.”

Some people have committed suicide because the pain was unbearable. The plant is so vicious that the <a href=”https://www.bbc.com/news/magazine-36606510″>Chemical Defense Establishment at Porton Down</a> was allegedly studying it for use as a military weapon.

The pain from a gympie gympie tree may reoccur for months or years after being stung.

Plants sustain all of the earth’s life forms. They are beautiful and wonderful creations. However, if you’re a tree-hugger, you might just want to reconsider. Or reach out to our qualified Portland tree service experts

23 Sep 2019

How to Rot a Tree Stump 2019

If you’ve recently had a tree cut down in your yard, you were probably left with the stump of that tree. Although perfectly harmless, stumps can be an eyesore, or they might be causing a disruption in your smooth lawn. Left alone, the stump will eventually rot on its own and compost into the dirt, but it can take years for nature to break everything down. These tips will help you speed up the process and have that stump gone in no time.

1. Water:

As most people probably know, moisture is what causes rotting in the first place. The safest and cleanest option to rot your stump is to soak it in plenty of water. Cut the stump as low to the ground as possible, then drill large holes into it. This will allow more water to penetrate inside. Next, fill the holes and flood the surrounding area with plenty of water. Place a tarp or large piece of plastic over the stump and ground around it. To trap the moisture inside the tarp, place rocks or wet mulch over the top. Wet mulch is the best option because it will help trap even more water underneath your cover. While this method isn’t the fastest, it will still speed up the natural process of decay.

2. Epsom Salt:

This method is a little faster than water but still relatively safe and non-toxic for plants. Repeat the same steps as above, but before flooding the stump with water, pour Epsom salts into the holes you drilled in the wood. The salts will help draw water from the surrounding soil into the stump, allowing it to rot even faster than with just plain water. Epsom salt can be purchased at most drug or grocery stores for relatively cheap, making this a cost-effective method.

3. Nitrogen Fertilizer:

if you are still looking for the fastest way to rot a stump, this is definitely your best bet. Fertilizers high in nitrogen aren’t the most environmentally friendly products, so use this only as your last resort. Just like with the Epsom salt process, fill the holes with a generous amount of fertilizer. The high levels of nitrogen nourish the growth of plants and fungi, which will quickly overtake the stump, and use its decay to flourish. Pretty soon, your stump will disappear, and you’ll be left with a wild little patch of new growth. This will be much easier to remove (or you can leave it if you like the self-cultivated garden), and then your lawn will be back to lush, green smoothness. Give our Tree Service Experts a call for a free consultation

22 Jul 2019

Top 7 Ways To Manage Your Tree Roots

Trees add significant value to cities, neighborhoods, and homes. Research shows that trees can enhance the image and attractiveness of a property, which is why your approach to developing it should give priority to preservation of the existing trees. Cutting down trees should be done only as a last resort.

Tree roots, on the other hand, are a completely different story. Roots of certain trees can penetrate and compromise sewer systems and pipelines. They can lift driveways and walkways as well as even topple walls and entire structures.

Fortunately, there are many different ways to manage your roots without the need to cut down the whole tree. Here are the top 7 ways to deal with tree roots:

1. Mechanically Cutting the Tree Roots

Using a mechanical auger is one of the most common techniques used to deal with tree roots. It is a mechanical approach that involves sending a powered auger down a sewer line. It has a rotating head that’s covered in teeth and the rotating action cuts and clears roots.

2. Using Mulch

If you have exposed roots in your yard, you can try applying mulch – preferably wood chips – underneath your tree. Doing this helps level out the area while keeping the roots cool and moist and allowing them to breathe. However, avoid putting more than 4-inches of mulch.

3. Root Barriers

Root barriers are steel or plastic membranes used to physically present roots from growing beyond the barrier line. They are particularly effective, especially if installed proactively when the tree is still young and roots don’t require pruning.

4. Chemical Control

You can use certain chemicals to kill off roots that grow beyond their bounds. For instance, copper sulfate crystals can be highly effective for this. The copper creates a “poison” zone in the soil around the structure you want to protect from the evasive roots.

5. Air Gaps

You can also control root growth effectively by creating a “dry” zone between the tree that has invasive roots and the structure you wish to protect. The zone is excavated and filled using materials that dry fast, should have very large pores filled with water, are impermeable to root penetration, and have poor water holding capacity.

6. Baiting

Roots naturally grow towards areas with healthy and moist soils. Baiting refers to providing these ideal growth conditions in an area away from the structure you want to protect. The process is at times not completely practical, but it can become workable under special in-ground containerization.

7. Using a Hydro Jetter

Using a hydro jetter is an effective but possibly expensive way to clear tree roots from sewer lines. The machine uses pressurized water and a pump. Once the hydro jetter has finished doing its job, you can flush your sewer line with a chemical to get rid of roots that might still be present.

Final Thoughts

Trees add value to a property, but their roots can definitely be a nuisance. If you want to get rid of tree roots effectively without cutting down the tree, try any of the methods discussed here. If you don’t know how to deal with trees or their roots, call our certified Portland Tree Service experts

17 Jun 2019

Tree Removal Portland Cost 2019

tree removal portland cost 2019

While most people will generally agree that the right trees add quite a bit to a property, there are many reasons that sometimes removing a tree is the only viable option. Whether it’s because of damage due to disease or pests, a tree dying for other reasons, or just getting too big for the infrastructure in the area, sometimes the tree needs to be removed. Portland tree removal services are available from a wide variety of truly high quality providers. However, results and costs can vary.

In addition to this, every job is different and not many people outside of the business have a good grip on what fair pricing is. That can make it difficult to figure out what fair pricing is. If you want to know what a good price to pay for professional tree removal in Portland Oregon is in 2019 then read on to get the full scoop including average price ranges, special considerations, and everything else you need to think about.

Many Different Factors
There are many factors that can affect the pricing for a job. First and foremost is the overall difficulty. Simply put the longer a job takes and the harder it is, the more it is going to cost. This makes perfect sense, but certain extra factors or concerns can play a major part in upping the price.

Just a short list of these include, but are not limited to:
– Nearby hazards (power lines)
– Any property line issues
– Storm damage (resulting in very high demand)
– Size (age) of tree and complexity of job
– Time of the year

If there are special circumstances that hit any of these checklists (or all of them), then you can bet on the price creeping up to the high side. In addition to this, in certain neighborhoods you will need certain papers, permits, or approval from the city ahead of time and it is up to the homeowner to provide these.

Average Numbers for 2019
While the numbers can vary, there are some general ranges that can be a good rule of thumb based on general billing information and trends from 2018 into 2019 so far.

On the low end are bids ranging from $540 to $600
The middle (average) range seems to be in the $601-$710 with $643 being the “mean” average
On the higher end is the $711 to $850 price range

Different providers are going to provide different estimates and this is all going with the assumption that it is a relatively forward tree removal. If additional services are needed or other professionals need to be called in then you can expect that price range to grow, as well.

Is Stump Removal Needed?
Tree removal means just that: the removal of a problem tree. This does not include stump removal, which is an entirely different service and will likely add $250-$350 more on top of the actual bill for tree removal. It’s important to keep these two services separate to have a more realistic expectation when it comes to pricing.

Keep these factors in mind and now you have a good general idea of what tree removal should cost you. You can also read more if you are trying to calculate the cost yourself here 

13 Apr 2019
arborists remove tree

Best Time For Tree Removal

Trees add so much value to our gardens and yards that it can be difficult to make the decision to have them removed. But when a tree poses a risk to humans and structures or if it has become damaged, decayed or died, there may be little option but to have it permanently removed.

So how do you decide when is the best time for tree removal?

The following factors play an important role in choosing a good time to have a tree removed:

1. A Hazardous Risk

When a tree becomes a hazard, it is better to have it removed sooner rather than later, regardless of the other factors listed below. A tree becomes hazardous if it has branches that overhang a structure. These branches can collapse due to weather conditions or under the sheer weight of the leaves causing major damage to a roof, walls or other structural elements. Branches that are damaged or decayed may also be a reason for immediate removal of a tree.  A proper pruning would be in order so that it can keep only the healthy branches and cut off the damaged ones that are only draining valuable resources from the tree.

2. A Dead Tree

A tree that has died adds no value and can also be hazardous. Dead trees can be removed at any time as the other factors for the best time for tree removal will have very little effect on the removal. Once again, sooner rather than later is the best rule to follow as the tree can fall over or loose branches can be a hazard.


  arborists remove tree


3. Root Structure

Trees that have extensive root structures should also be removed as soon as possible. These roots can grow into water and drainage pipes causing significant damage and blockages. Roots also pose a threat to the foundation of a structure and can weaken or even damage it.

4. Diseased Or Infected Trees

Diseased trees or those that have become infected with parasites or fungus are another good reason for immediate removal. The disease, fungus or parasites pose a threat to the rest of the trees or plants in your garden and this risk should be eliminated as soon as possible to prevent the spread of the infection.

5. Time Of Year

Trees that are still living and do not pose an immediate risk should preferably be removed during their dormant season. This mainly applies to deciduous trees that have a seasonal cycle. The dormant season normally occurs at the end of winter just before new leaf shoots arrive in the spring.

The reason that this is the best time of year is because the tree carries less foliage and is therefore much easier to cut down, cut up and remove. In addition, it is far less messy to remove the tree at this time. The ground has also just begun to thaw at the start of spring making it soft enough to remove the roots while ensuring that it is hard enough for any surrounding trees and plants to remain stable and in place.

The ground factor means that this is also a good time to remove evergreen trees or trees that do not lose their leaves in the fall and sprout new ones in the spring.

6. The Cost

Tree fellers, an arborist and other type of tree removal expert will charge more to remove trees during the busy season which is between winter and spring. Opting to have the trees removed a little earlier, out of this peak season, can save you some of the expense of having the tree expertly removed. Earlier in the winter months is ideal if you are looking for a more cost-effective professional tree removal service.

Always keep in mind that tree removal is a hazardous process and the task is best left Portland Tree Service experts.

Our team of experts have 20 years of experience in all aspects of tree services. Our honest and result driven approach have awarded us with many years as a top contractor on Home Advisor. These reflect along with the many positive reviews from our past customers. We are a licensed, bonded, and insured certified ISA member Arborist Portland.!
Capable of completing all aspects of tree service, from a simple tree trimming or pruning all the way to lot clearing for a commercial development. H&R Tree Service LLC can complete all tasks with precision and safety always in mind as a priority.!
The moment you contract a service with us at H&R Tree Service LLC, we are committed to deliver excellence. Our honest service has been known to excel people's expectations. We are here to leave you with an impression about our hard working team that you won't soon forget. Also being capable to go above and beyond what is expected and leaving your property in a better state than when we arrived.!
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