Tree poison roots


How to Kill Tree Roots (Project Guide)

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Trees add great beauty to your landscape and their shade can help keep cooling costs low. But when a tree outgrows its location or is seriously damaged in a storm, it becomes a hazard that should be removed—and chopping it down is only half the battle.

A tree’s underground root system can extend up to 20 feet deep in ideal soil conditions, and spread over an even greater area. These tree roots can continue to grow even after the trunk is history and, if close to your sewer line or foundation, cause serious damage. Eliminate underground issues with either the chemical or natural treatment described here—just remember to use caution and keep both herbicide and rock salt out of reach of pets and kids. Now read on to get to the root of the problem.
 

Option 1: Chemical Herbicide

The fastest, most effective way to kill roots is with chemical herbicide, as soon as the tree has been cut down. If you can treat the tree immediately, proceed to Step 2; if not, follow Step 1.

Photo: istockphoto.com

TOOLS AND MATERIALS Available on Amazon
– Saw
– Watering can (or garden hose)
– Glyphosate herbicide (with 41 percent or higher active ingredient concentration)
– Small bucket
– Garden sprayer (or paintbrush)

1. If the tree was cut down days (or more) ago, make a fresh cut with a saw across what remains of the trunk.

This slice should create a flat surface and expose new flesh. With trees three inches or less in diameter, cut across the entire surface of the trunk. For larger trees, expose new flesh of the outer two to three inches.

2. Saturate the tree’s cambium layer—the outer ring located just under the bark—with 2 to 3 inches of water.

As this outer layer is still alive and growing, the liquid will help carry the herbicide from the live tissue to the tree roots.

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3. Mix a 50/50 solution of glyphosate herbicide to water and apply it to the exposed cambium layer.

You can use a garden sprayer, hand-held sprayer, or paintbrush to do so. Be careful in your application to avoid splashing and inadvertently harming plants or grass surrounding the trunk. Tree roots should die off completely in a couple of weeks.
 

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Option 2: Rock Salt

Although it takes longer than chemical herbicide, rock salt can effectively kill tree roots by robbing them of water.

TOOLS AND MATERIALS Available on Amazon
– Rock salt
– Water
– Drill (with 1-inch or larger drill bit)

1. Drill several holes 3 to 4 inches deep into the cut surface of the tree trunk.

Before you stow your power tool, bore several additional holes into any larger roots that are exposed near the ground.

2. Fill the holes completely with rock salt, and pour water into them to fill to the top.

Avoid overfilling, as the rock salt solution is harmful to surrounding vegetation and toxic to pets—you won’t want any spillover. Repeat this process several times for a few months, and eventually rock salt will kill the tree roots. (You’ll know the roots are dead when there is no longer any regrowth from the trunk.)

Fear that the roots have invaded a sewer line or your foundation? Maybe you wish to keep the decomposing material from feeding unattractive fungus. In either case, you could also attempt digging the larger tree roots out of the ground. It’s an arduous process, but once you remove them you can reclaim your lawn.

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in backyards and pipework |

(Image credit: Getty Images)

If you want to know how to kill tree roots, it's likely that a tree has been removed, with only the stump and root system remaining. These roots may be causing problems, exploiting existing weaknesses pipework and patios, or even house foundations. 

If you know how to remove a tree stump, you might also know that a stump left in might take the opportunity to reshoot. In this case, you will need to remove of the root system as is possible.

'Always take care when trying to kill or remove tree roots. If you want to cut up the root system to kill it, be aware that it could be wrapped around underground pipes or cables,' says Fiona Jenkins, gardening expert at MyJobQuote . 'Should you be in any doubt or suspect that the root system is well established, hire a reputable arborist to tackle it for you. This will save you time and effort and prevent accidental damage.'

It goes without saying of course that, for many, killing tree roots will need the services of a professional, and should never be attempted with the tree still standing. 

Here, we explode the myths around killing tree roots and reiterate that the best person to remove them, if they need it, is a professional.

How to kill tree roots

Killing tree roots – along with tree removal and controlling tree root growth generally – could save you both inconvenience, property damage and expense in the long run. 

Prevention is better than cure, so as you plant your garden, ensuring the trees you put in are of a suitable size and, in some specific cases, have a root barrier around the roots will save you having to deal with this problem in future. 

'It is really important to understand that trees don’t cause the initial damage to pipes,' advises John Parker, Chief Executive Officer, Arboricultural Association . 'They can only exploit existing weaknesses. So if a pipe isn’t maintained, and it cracks, then tree roots could exploit that and make things worse. But the tree is extremely unlikely to have actually caused the damage. Tree root damage to pipes is really a sign of a lack of infrastructure maintenance.'

Can you kill tree roots with boiling water?

You cannot kill tree roots with boiling water. There is a theory that you can kill tree roots with boiling water, by exposing as much of them – and the stump if it's still intact – and drilling holes into them. Pour boiling water into the holes is said to cause heat-shock to the roots. This will not work.

Can you kill tree roots with rock salt?

Gena Lorainne, a gardening and landscaping expert at Fantastic Services suggests killing tree roots with rock salt.

'Dig several four inch holes into the cut surface of the tree trunk. Additionally, you can also drill some holes in the exposed roots (if present),' she says. 'Fill the holes with rock salt and pour water into them so the holes are filled to the top. 

'A very important thing to remember is to avoid overfilling and spilling, as rock salt is toxic to other vegetation and pets. You will have to repeat this process several times for a couple of months and eventually, the salt will do its job and kill the tree roots. You will know that the job is done If there isn’t any regrowth from the trunk. '

Tristan Sissons, Garden Buying Manager at Homebase suggests sealing the holes drilled after the rock salt has been poured in with candlewax. 'This stops the salt from getting blown around the garden and harming other plants,' he says. 'Cover the tree stump with a plastic sheet or tarpaulin. Check on it every couple of weeks – when it’s dead, it will break up easily.'

However, John Parker of the Arboriculture Association disagrees: 'Pouring rock salt into holes drilled into tree roots is not a good idea, probably won’t work and should not be proposed as a solution to this perceived problem. A tree stump will take several months, and likely years, to break up, no matter how much salt is poured into/onto it.'

How to kill tree roots with herbicides

While you can kill tree roots with herbicides, John Parker advises that they 'should typically be a last resort, but if they are to be used to kill root systems this should only ever be done by a professional, probably using plugs, not by somebody cooking up their own concoction at home. '

Can you kill tree roots in pipes with boiling water?

It is unlikely that flushing anything, from boiling water to baking soda, vinegar or salt, all of which you will see suggested on the internet, will do anything to kill tree roots. 

'Even if it did have some effect, the roots would soon grow back unless the pipe was fixed,' says John Parker.

Which trees have the most invasive roots?

Just as with invasive plants, which can cause damage to masonry, fences and other plants, there are some trees you will want to avoid planting near buildings. However, says John Parker, 'it is all about planting the right tree in the right place, with the right aftercare. Context is everything – soil type, proximity to structures or infrastructure, local climatic conditions, maintenance, etc.'

Why do tree roots invade pipework?

A tree's roots are driven to look for water and nutrients, so it's a given that they will gravitate towards cracked pipework underground, especially if there are the tiniest of leaks coming from them. Tree roots can invade even the smallest of gaps, causing wider damage, so should any cracks in pipework or masonry should be dealt with as soon as they are discovered.

Lucy Searle has written about interiors, property and gardens since 1990, working her way around the interiors departments of women's magazines before switching to interiors-only titles in the mid-nineties. She was Associate Editor on Ideal Home, and Launch Editor of 4Homes magazine, before moving into digital in 2007, launching Channel 4's flagship website, Channel4.com/4homes. In 2018, Lucy took on the role of Global Editor in Chief for Realhomes.com, taking the site from a small magazine add-on to a global success. She was asked to repeat that success at Homes & Gardens, where she has also taken on the editorship of the magazine. 

What dangerous plants are found in central Russia

Spotted hemlock

On the banks of rivers and in other humid places there are umbrellas with purple-speckled stems, leaves similar to parsley or carrots, and an unpleasant "mouse" smell. This is one of the most dangerous plants in central Russia! Spotted hemlock and related species contain a powerful poison that causes nausea, muscle weakness, convulsions, respiratory arrest and death. nine0005

Spotted hemlock

© Alexei Durasov/TASS

In ancient Greece, hemlock extract was given to those sentenced to death. It is believed that the philosopher Socrates, who was sentenced for blasphemy and corrupting youth, also drank it. Later, hemlock began to be used in folk medicine, but it is because of this that poisoning most often occurs.

All parts of the plant are poisonous, especially seeds and roots. Sometimes, out of ignorance, children eat it. But there is also a risk if the juice of the plant just got on the skin, especially if you put food in your mouth without washing your hands. In case of poisoning, you should immediately call an ambulance, wash your stomach, take activated charcoal. nine0005

Poisonous milestone

Hemlock vaguely resembles poisonous milestone, or hemlock. Cicuta is also an umbrella plant that loves moisture. It can be distinguished by a stem without purple spots and a massive root with cavities and partitions inside. This root smells good and attracts the boys who eat it.

Poisonous milestone

© Alexey Durasov/TASS

Under no circumstances should this be done: the hemlock root is deadly poisonous. For a long time it was believed that the poison for Socrates was prepared from this plant, and not hemlock, but the description of the symptoms did not fit. With hemlock poisoning, muscle weakness and respiratory arrest come to the fore, and in the case of hemlock, seizures like epileptic seizures. However, nausea, diarrhea and many other symptoms are the same. nine0005

The hemlock root is especially dangerous, but other parts of the plant are also poisonous. If you eat the leaves or the stem, then death probably will not occur, but you should never risk it anyway. If you suspect poisoning, you should immediately consult a doctor: maintenance therapy in most cases helps to stay alive.

Sosnowski's hogweed

Another dangerous umbrella plant is Sosnowski's hogweed, which cannot be confused with anything because of its huge size. Fleshy long stems with spreading leaves attracted the attention of livestock breeders: cow parsnip was brought from the Caucasus and began to be grown in the middle lane to feed cows. True, it turned out that because of such a diet, milk acquires a strange and rather unpleasant taste. nine0005

Sosnovsky's hogweed

© Aleksey Durasov/TASS

In agriculture, hogweed was abandoned, but it grew along roadsides and fields and turned into a real scourge. The problem is that the villi on its surface contain substances that make the skin so sensitive to the sun's rays that the affected areas become covered with painful blisters. The plant is especially dangerous on a clear day and for people with pale skin. If you rub your eyes, you can go blind. At the same time, at first a person does not feel anything special - a burn occurs only after a few hours, and sometimes days. nine0005

After contact with hogweed, thoroughly wash the skin with a soft sponge and soap, close the damaged areas so that they are not exposed to sunlight for two or three days. The blisters are treated with an antiseptic and bandaged, and antihistamines also help. With burns, you need to go to an ambulance or a doctor.

Aconites

Aconites, popularly called wrestlers, are a whole genus of the ranunculaceae family, although they look more like legumes because of their helmet flowers. In the middle lane, aconites do not germinate well and are rarely found in nature, but gardeners love them because of their large blue-violet brushes. In a flowerbed, wrestlers can be difficult to distinguish from larkspur: the difference is again in the flowers - in larkspur it is open. nine0005

Aconite

© Aleksey Durasov/TASS

Both larkspur and wrestlers are poisonous, but wrestlers are deadly: to die, it is enough to eat two to four grams of the plant. Even inhaling the pollen is dangerous. But most often people are poisoned by alcohol tinctures and decoctions of aconite, which are used for joint pain and cancer.

In large doses, aconite knocks down the heart rhythm, depresses respiration, causes paralysis. There is no antidote, as with most plant poisons, so only washing and symptomatic treatment is carried out. But toxic substances are absorbed through the stomach in about an hour - if there are a lot of them, then after that there is almost no hope of salvation. nine0005

Ash trees

Like aconites, Ash trees are more often found in flowerbeds than in forests and meadows. They attract attention with beautiful pink flowers with dark veins, long petals and curved stamens. You want to smell these or collect a bouquet from them, but in no case should you do this.

Ash trees

© Alexey Durasov/TASS

Ash trees contain a lot of essential oils. If you bring a match to them on a sunny day, a fire will break out. That is why these flowers are also called the burning bush: the flame does not harm the plant. But the essential oils secreted by the flowers and leaves of ash trees damage the skin and mucous membranes like Sosnowski's hogweed. nine0005

Wounds usually appear on the face and from the hand to the elbow. A person does not feel anything when he smells or touches ash trees, but soon blisters appear on the affected areas, then they burst and turn into painful ulcers that do not heal for a long time and leave marks. With these symptoms, you should see a doctor as soon as possible.

Lily-of-the-valley

Lily-of-the-valley is considered a symbol of purity and love, but this plant is very poisonous, and in its entirety. The toxic properties of lily of the valley were even used in the scenario of the cult series "Breaking Bad", where the main character, a chemist, almost killed a six-year-old child by treating him to delicious red-orange lily of the valley berries. At least, everything points to the fact that it was he who did it. nine0005

Lily of the valley

© Aleksey Durasov/TASS

But more often lily of the valley is poisoned when used as a heart remedy. The substances contained in it really help with heart failure and tachycardia, only in strictly defined quantities. If you drink a tincture or decoction, then you can achieve the opposite effect: the heart will fail, and before that the pressure will jump, vomiting, diarrhea, headache will begin, a rash will appear on the skin, the person will feel disoriented and lethargic. In the worst case, death will come. Therefore, if you had a chance to try lily of the valley and your health deteriorated, you need to urgently call an ambulance, wash your stomach and take activated charcoal. nine0005

Wolf's bark

Wolf's bark

© Aleksey Durasov/TASS

The wolf's bark has other alarming names: deadly wolfberry, badhovets. They gave them for a reason. Although this plant is used in folk medicine, and in former times it was rubbed instead of blush, after contact with a wolf's bark, one can really die. All parts are dangerous. If you try to pick a branch (it breaks off with difficulty), irritation will appear on the skin, but even worse - eat bright red berries that grow right on the branches, like sea buckthorn. nine0005

Berries cause a burning sensation in the mouth, so you can't eat a lot of them. Another thing is that you can swallow them whole and get a dangerous dose of poisons: for a child, only three or four pieces can be fatal, for an adult - a little more. Because of the wolf's bast, it becomes difficult to breathe, there is pain in the abdomen, vomiting, diarrhea, and convulsions are also possible. In severe cases, death occurs.

Castor oil

Castor oil

© Alexey Durasov/TASS

Castor oil can often be found in city flowerbeds or garden plots. Sometimes it grows up to several meters in height, it has large leaves with divergent rays, often with a beautiful purple hue. Children are especially attracted to the fruits of the plant - bright red, brown or green boxes with long spikes on the outside and variegated seeds inside. The well-known castor oil is obtained from castor bean seeds, but they also contain the deadly substance ricin, which, by the way, was also used by the protagonist of the Breaking Bad series. nine0005

Castor oil causes severe poisoning with severe abdominal pain, vomiting, diarrhea, rapid pulse, low blood pressure, and seizures that last for about a week. Fortunately, if you just swallow a couple of seeds, most likely you will not die. But if you chew them, you can get a lethal dose of poison. In addition, often ricin irreversibly affects the internal organs, so it is better to admire castor beans.

Celandine

Celandine

© Alexey Durasov/TASS

In contrast to the bastard, celandine is a misleading name. This small plant with yellow flowers, which blooms twice a season, is indeed used in folk medicine as an antibacterial agent (both as a choleretic agent, and against warts, and with mastopathy), and some young mothers bathe their babies in celandine broth. But celandine is poisonous, so you should not do this.

As with other medicinal plants, with celandine you cannot guess what the concentration of active substances is. Indirectly, this is indicated by its juice: when it is a rich orange color (usually in a hot summer), there are a lot of substances. But how many of them get into a decoction or tincture cannot be measured with improvised means. Preparations from celandine should be taken only under medical supervision: there is a risk of liver damage. It is better not to collect the plant even for bouquets: celandine juice can cause irritation on the skin. nine0005

Things to remember

— You can't eat unknown berries and roots: intestinal upset is nothing, but you can die. - With medicinal plants you need to be careful: the content of active substances depends on the season, air temperature, soil composition and other factors. - Not all plants can be touched with bare hands, but if you do, be sure to wash your hands with soap and water, especially before eating. - If symptoms of poisoning occur, you should immediately consult a doctor and, just in case, take activated charcoal. “We need to tell the children about all this and show them dangerous plants. nine0005

Marat Kuzaev

K. A. Timiryazeva Elena Malankina

Dangerous poisonous plants: species, list

We tell you which apples you shouldn’t bite into, the aroma of which flowers you definitely don’t need to inhale, and under which tree it’s better not to wait out the rain, because all this can turn out to be your latest initiative. In the selection - the most poisonous plants on the planet. nine0005

Natalia Polytsia

Tobacco

Some parts of the plant, especially the leaves, contain anabasine and nicotine alkaloids. Both chemicals are toxic. Mimicking the effect of acetylcholine (somewhat similar to the effect of adrenaline), nicotine acts on the autonomic nervous system. If you eat tobacco leaves, you can die. The phrase “a drop of nicotine kills a horse” should not be so ironic: 50 mg of a toxic substance can lead to lung failure and cause paralysis. Anyone who has smoked tobacco at least once is familiar with the effects of nicotine in small doses - heart palpitations, high blood pressure, sometimes mild nausea and dizziness. One cigarette contains about 3 mg of nicotine, so all these symptoms create a feeling of cheerfulness rather than poisoning. nine0005

Liquid nicotine is also available: a yellowish or brown oily liquid. A teaspoon of such an "oil" can kill an adult, and a drop of the substance on the skin is enough to cause poisoning of the body. It is curious that liquid nicotine is used for insecticides, and - think about it! - for electronic cigarettes.

Belladonna

This plant is also called sleepy dope and madberry. It is not surprising that such names did not arise from scratch. nine0005

Belladonna grows in Central and Southern Europe, North Africa, Western Asia. With the discovery of the New World, the berry appeared in some areas of Canada and the USA. The dangerous plant is related to tomatoes, potatoes, eggplants, some types of peppers and tobacco - they all belong to the Solanaceae family. Among the most poisonous plants in the eastern hemisphere, belladonna contains a huge amount of the tropane alkaloid in the company of other toxins.

Tropane has pharmacological properties and is even used in medicine - but under the watchful supervision of doctors. Even in ancient times, it was used as an anesthetic. The level of toxicity of belladonna depends on the parts of the plant and the season. Theoretically, three to four fresh berries act as a psychoactive drug. But given the individual characteristics of the physique and health of each individual, the risk of death is extremely high. Belladonna berries are especially dangerous for children - most often they die from these appetizing and sweet-tasting berries. Belladonna ointment was used during the trials of witches in the Middle Ages - in a state of frenzied excitement, they confessed to everything they were accused of. True, risky young ladies in the Middle Ages instilled belladonna extract into their eyes - this dilated the pupils, which was considered attractive. nine0005

Vex

Herbaceous plant of the Umbelliferae family. This plant has become firmly established in history in connection with the death of Socrates: it is believed that he committed suicide by drinking hemlock juice. Despite being related to harmless carrots, celery, parsnips, and coriander, don't be deceived: weh is the most poisonous plant in North America. A very small amount of cicutotoxin - a poison contained in a plant - is enough to poison a person. The poison affects the central nervous system, causing excruciating convulsions. nine0005

The plant is easy to recognize, especially in June and July, during the flowering period: small white flowers look like umbrellas. The most poisonous part of the plant is the root. Symptoms of poisoning can appear as early as 15 minutes - nervousness, dilated pupils, rapid pulse, convulsions, seizures and, eventually, coma and death.

Prayer rosary

This plant is a species of the genus Abrus of the Legume family. The plant is native to Indonesia but is widely found elsewhere around the world. This is a climbing vine, the fruits of which are a pod with red-black seeds. The seeds, interestingly, are often used in maracas musical percussion instruments and jewelry. Its main name - "bead" - the plant deserved thanks to all the same seeds: they were used to make rosaries. This is how the plant was brought to other countries, spreading mainly in hot regions such as Belize, Hawaii, Polynesia, Florida in the USA. nine0005

Attractive seeds are fraught with wild danger: they contain a deadly poison. Only 3 mg is enough to kill a person. Fortunately, the seeds have a shell that keeps the poison inside. The shell is so strong that even if you swallow the seeds, you may not be poisoned. The problem is that the shell can be corrupted. There were cases when, when making jewelry, craftsmen accidentally pierced the seeds of a plant, and the ingress of poison on the skin was fatal.

Oleander

This luxurious shrub is common in the subtropics. Despite the fact that it is often used in landscape design (it is painfully beautiful), oleander is a poisonous plant. Oleander prefers hot countries, but due to its popularity as an ornamental plant, it can be found almost anywhere. Or rather: in almost any garden.

The plant is poisonous no matter how you approach it: all its parts are toxic. If you drink oleander juice inside, the symptoms of poisoning will appear instantly: first, the poison affects the gastrointestinal system, then the cardiovascular and central nervous systems. Poisoning with oleander poison can cause cardiac arrest, so it is important to provide timely medical assistance to the victim. nine0005

Fragrant Datura

No less poetically the plant is called in English - Angel's Trumpet, that is, "Angel's Trumpets". Indeed, the flowers of the plant look like gramophones (and quite innocent, angelic in appearance). Due to the graceful flowers - white, yellow, pink, orange - fragrant dope is widespread as an ornamental plant, it can often be found in gardens, greenhouses, on balconies or verandas.

Like oleander, datura is poisonous "from head to toe", but the seeds and leaves are especially toxic - their entry into the human body is fraught with death. Scopolamine, hyoscyamine, and other tropane alkaloids, which are rich in datura, cause paralysis, confusion, tachycardia, hallucinations, and death. True, these same alkaloids also have medicinal properties - they are often used in folk medicine. The effect of scopolamine is interesting: in powder form, it prevents the formation of new memories and blocks the will of a person, making him practically defenseless in relation to others. In other words, by spraying scolopamine powder (found in dope), you can turn a person into a "zombie". nine0005

Aconite

In English it is called Queen of all Poisons - "Queen of all poisons". As you understand, such a title must be earned. 20-40 ml of aconitine, the poison contained in the plant, is fatal to humans. Aconitine is easily absorbed through the skin, so even a touch can be fatal. Nausea, numbness, burning are quickly replaced by weakness, arrhythmia, and then - paralysis of the heart and respiratory system.

Aconite is found in Europe, Asia and North America. The ancient inhabitants of these territories used aconite poison for military purposes, lubricating arrowheads with it. In Alaska, whales and seals were hunted in this way. nine0005

Wrinkled vine

Plant of the Astrov family. The window sill contains the poison tremetol. A particular danger lies in the fact that the plant often finds itself in the "menu" of cattle, and the poison, respectively, gets into both meat and milk. Populating the New World, Europeans did not know about the poisonous properties of the plant, and often died after drinking poisoned milk. They called this attack "milk sickness." They say that Abraham Lincoln's mother died in 1818 from "milk sickness" (tremethol poisoning). nine0005

Manchineel tree

One of the most poisonous trees on the planet, found in Central America and the Caribbean. The tree is so dangerous that sometimes it is fenced off and even accompanied by a warning sign. If some plants are poisonous when touched, then the manchineel is much more cruel - you can get burns just by walking by! The decision to “wait the rain under the manchineel” will be fatal for a frivolous person: raindrops that touch the leaves of a tree affect the skin. The daredevils who start a fire made of manchineel wood will be lucky if they do not go blind from its smoke. nine0005

The most bloodthirsty part of a tree is its fruit. In Spanish, they are called "little apples of death": the fruit is guaranteed to kill you if you decide to try it. The natives who inhabited the Caribbean islands soaked arrows in the juice of manchineel "apples", and for especially sophisticated torture they tied the victims to a tree - they were waiting for a long and painful death in agony.


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