- 1 Dangerous weed Ambrosia: photo and methods of its destruction
- 2 Ambrosia - photo plants and how it is dangerous
- 3 Ambrosia - photo plants, description, benefits and harms
Dangerous weed Ambrosia: photo and methods of its destruction
Good day, dear friends!
Every cottager nightmares sees your site, completely overgrown with weeds. And that did not happen, it is necessary to recognize the weeds when they first appear, and ruthlessly destroy them. Today I'll tell you about the beautiful, but very dangerous weed. North American ragweed plant is ubiquitous in all corners of the Earth and is considered a common weed.
Bright representative flora has delicate leaves and catches the eye, but is fraught with hidden danger. Ragweed, a plant photo makes it possible to see this, different characteristic appearance and come in several varieties.
Ambrosia artemisiifolia - weed culture, which declared a quarantine on the entire territory of the Russian Federation. Plants are able to develop a strong root system and aerial part, suppressing the development of agricultural crops.
In places where the weed grows, the soil fertility is narrowed layer dries humus layer, lost productivity and difficult cleaning crops. Weed leaves are saturated with essential oils, so this hay and green feed is not eaten by cattle. If milking animals still used the blooming ragweed, deteriorating quality and organoleptic characteristics of milk.
Doctors say that the ragweed pollen (released into the air when the plant blooms) - this is a dangerous and aggressive allergen provokes the development of hay fever in people of different age groups. Penetrating into the skin and mucous membranes, it causes a strong reaction. Allergy is manifested characteristic symptoms and promotes development of status asthmaticus.
The seeds of the plants can be entered in the ecologically favorable regions with food or seed grain domestic or imported, or the products of processing of seeds, straw, hay, sprouts.
How does the picture of the spread? The seeds begin to grow on roadsides. In the short term small bushes transformed into a dense hedge and begin to be implemented in the meadow area. These properties are due to several features:
- In Russia, there are no natural antagonists ambrosia - insects and plants that could restrain rapid growth and reproduction. They just do not live RF. And the climatic conditions of the country contribute to a massive growth in the soils of any type.
- Branched root system ensures that trohrazdelnaya ragweed able to survive in the dry period.
- Weed seeds is characterized by high productivity, which can ascend to the step of lactic and wax ripeness. Their germination ability to maintain for 40 years.
Brief description of the techniques to combat ragweed below.
Such a struggle is effective during budding. In the phase of vegetation issechonnoe plant generates three times more shoots than it was. Effective is five-time seasonal mowing, which does not allow weeds to bear fruit.
If ambrosia weeds by the roots, it will get rid of the weed. Such methods are often used in limited areas small area -.. Gardens, vegetable gardens, backyard playgrounds, etc. That is found in the country like a plant - rip it mercilessly with its root.
On large areas apply the herbicide treatment drugs "Prima" series, "Lauren", "Cosmic", "Granstar".
To combat used lawn planting and grass-perennial. They are located in the territory, according to the procedure of artificial grassing. This allows you to block the spread of ragweed and flowering.
An integrated approach - the basis of a successful fight against weed culture. And alert - look closely at the pictures and remember what it looks like this handsome-wrecker. I would be glad if the information will be useful, and you share it with your friends from social networks. But subscribing to my blog, you will not miss even a lot of useful articles.
Site about the cottage Marina Makarova. Transform cottage in paradise
Togo, who will be stealing content, suffer crop failure, pest infestation, intruders and full overgrown garden weeds.
Ambrosia - photo plants and how it is dangerous
you can find the weeds that are harmful to its spread in each cottage and garden area.
One of the brightest representatives of the weed is ragweed.
Under a stunning view of the plant, attracting stares at the photo, you can verify this is actually hiding a dangerous "enemy".
- 1 The history of the development and dissemination of
History of the development and dissemination of
Ambrosia applies to annual and perennial plants of the family Asteraceae. The name comes from the similarity artemisiifolia leaves of wormwood.
Color pinnatisected ragweed leaves changing colors of light to top and dark shades in the lower part of the plant. Powerful upright and grooved stems can reach a height of 2 m.
Powerful root reaches up to 4 meters in depth. the first flowers are formed in the end of July. The flowering period occurs from July to early October. Of the 40 species of ambrosia, in Russia there are only three:
Designation of the word "ambrosia" from the source to Wikipedia, comes from Greek mythology, from the name of the ointment "food of the gods", which was used for application to the body.
This miraculous ointment gave not only youth, but also immortality. According to the stories, ragweed appeared on our continent in 1873.
The birthplace of this weed are considered the south-western regions of North America.
For two centuries, this plant from the very rare species has become the most common type of spring weed.
Ragweed propagates with incredible speed, she grows perfectly on any soil. For germination of its seed requires loose topsoil and sufficient daylight.
Because of the ability, like a living pump draw in moisture, it blocks access to other crop plants. For ragweed arid terrain is not an obstacle for growth, all this thanks to its long roots, which allows even from great depths to extract moisture.
The roots of perennial weeds after hibernation, waking up in the spring, spread throughout the surrounding area. The spread of weeds can be seen at:
- North Caucasus;
- south-eastern regions of Russia.
The largest part grows in Ukraine, especially in the south-eastern part of the country. Best for ambrosia habitats are agricultural fields, orchards and cottages.
A powerful root system and aerial part ragweed suppresses the development of cultural crops.
For turning the soil into the mixture, which becomes unsuitable for vegetable crops, ragweed takes a few years. Seeds ragweed bloom when it is already in this early period shall be available to the landing.
There are several factors that show the negative impact of the weed in a field of its growth:
- narrowing of the fertility of the soil layers;
- draining humus layer;
- darkening of space for its dense leaves;
- the displacement of crops;
- difficulty in harvesting crops;
- loss of productivity.
Because of the ability of active influence on cultural meadow grass by their suppression, ragweed possesses unique high allelopatichnostyu. During achieve full ripeness of seeds by mid-August, they are able to get into the grain heap late crops - alfalfa, millet and Sudan grass.
It stimulates the germination of seeds of Ambrosia and making a full range of mineral fertilizers. Drinking cow blooming ragweed in the composition of the leaves of which are undesirable essential oils affect the quality of milk, compromising its basic performance.
Harmful influence on the human body
During flowering ragweed, a person is often allergic to the plant. It provokes hay fever.
His aggressive allergic exposure to pollen at flowering plants are released into the environment. Allergy is manifested by the following main symptoms:
With proper treatment of allergy to ragweed there is a significant improvement in health.
Effective folk remedy exhibiting anti-allergic and anti-inflammatory action in the fight against the weed allergens are grass - plantain and currants.
Owing to its composition of ambrosia essential oils, vitamins, biologically active substances and trace elements, are its positive effects in the fight against certain diseases.
It is used as a juice, infusion, alcohol and oil extracts for the treatment of:
Ambrosia possesses anti-inflammatory and antipyretic activity. Healing qualities of weed found in the above-ground parts of plants, seeds, flowers, roots and the pollen. Bactericidal action ragweed enables use in treating oncological diseases in the early stages.
The following measures are envisaged to combat the weed Ambrosia:
- comb and deleting rhizomes;
- mowing weeds to flowering;
- green manuring method consisting in planting the infected site ambrosia green manure plants, which include:
- crested wheatgrass,
- Lotus corniculatus,
- alfalfa yellow.
- the use of herbicides from the list of permitted in the territory of the Russian Federation;
- ambrozievogo spread of beetle, for eating the leaves of the weed;
- infrared weed treatment - this method works in conjunction with the basic methods.
It is forbidden the use of herbicides in the residential and resort areas, as well as pastures.
Obvious damage to the weed and its "benefit" in the treatment of diseases can not be compared with each other. In the fight against the dangerous ragweed, to achieve the greatest effect, important integrated approach.
How to deal with ambrosia, see the following video:
Like this? Subscribe to site updates by RSS, or stay tuned VKontakte, Odnoklassniki, Facebook, Twitter or Google Plus.
Ambrosia - photo plants, description, benefits and harms
Even before people begin to delve into the botanical elements, at least at the level of his garden, he certainly can gain knowledge about the ambrosia of the Greek mythology, where the immortal gods ate it, drinking nectar. And so later, when this plant has to face in life, not a fairy tale, it is necessary to revise established views.
Ambrosia - beautiful and dangerous - a photo close up
In terms of botany, ragweed - herb of the family Asteraceae, annual and perennial. It may even seem outwardly attractive because of its long dark green leaves with silvery-green podpushka below. This can be a stalk height of 20 cm and a powerful two- or even three-meter plant.
But for those crops that have not had the luck to grow up next to ragweed, the worst - it is a long root of a core penetrating the soil to a depth of 4 hmetrovuyu and sucking from it all nutrients. Growing near the plants are doomed to death.
The first shoots appear on the soil of ragweed in the late spring and early summer. Two months later, the plant begins to bloom, there is a large number of small flowers in various shades of green, depending on the species of ambrosia. Flowering lasts 2-3 months, depending on the climatic characteristics of the region.
Each plant matures about 40 thousand seeds in which reproduction occurs and weed. This does not necessarily have the seeds to ripen fully: seedlings may appear after the seeds fall to the soil, or even wax breast maturity. Germination of seed - not less than 40 years.
On ragweed as a quarantine weed we first talked about a hundred years ago. His homeland - North America, there are more than 50 species of this plant. From there he went to Russia with the seed clover in the late XIX century.
Later she began to spread rapidly throughout the territory without meeting decent resistance in the environment. This expansion is typical for all of quarantine weeds, because of native fauna unable to resist outsiders.
On our territory grow three species of ambrosia, one of them a long-term (ragweed golokosaya) and two annuals - artemisiifolia and trohrazdelnaya. Each type of the features. Thus, long-term ragweed - a plant with creeping rhizomes, very hardy, which enhances its survival and expanding habitat. For annual plants is characterized by the rapid build-up of mass flowering and with a lot of pollen.
Harm to ragweed should be considered in two aspects:
For a man of his dangerous ragweed pollen - the strongest allergen. Once flowering begins, in individuals with hypersensitivity to this plant begins to show symptoms of an allergic textbook:
- tearing, eye redness;
- runny nose, sneezing, cough, swelling of the nasal mucosa;
- shortness of breath, wheezing, soreness in swallowing;
- cutaneous manifestations (itching, redness, rash).
The most annoying thing is that even a person that is resistant to allergens may develop hypersensitivity to ragweed pollen, if it is to inhale it for more than 14 days.
In addition to survival under natural conditions (drought and frost), a large number of seeds, ragweed dangerous by the fact that the pollen can be transported over long distances. Therefore, allergy can be observed not only in the habitats of its growth, but also far beyond.
Damage to agriculture ragweed causes due to the fact that it:
- drains and depletes the soil;
- It displaces the natural flora of the region.
It not only impairs the productivity of legumes, cereals and oilseeds, but also significantly affects the culture of meadow, as well as for the production of meat and dairy products. In addition to reducing the content of the forage nutrients due to the depletion of soil clogging feed ambrosia leads to the fact that the animals or give milk and meat of poorer quality due to the characteristic bitter taste and strong smell of essential oils, or not eating food at all, if the ragweed in feed lots.
But can be derived from ragweed and favor. In folk medicine, it is used as:
- bactericidal, etc.
Using it, both external and internal, is only possible after the test for an allergen will be held. By the way, a hundred years ago in Russia it was grown as a medicinal plant is to combat malarial fever. By using herbal-based ragweed, you need to consider not only the possibility of an allergic reaction, but that long-term inhalation of its essential oils causes a headache.
On the Crimean peninsula due to the mild climate, the first shoots of weeds appear in early spring, it blooms earlier than on the mainland, and the flowering season is longer.
All this raises the ambrosia to the rank of a natural disaster, if time does not take appropriate measures. This plant can be found in every corner of the Crimea, but there are places where it is particularly widespread, which is why getting worse phytosanitary situation.
Because weed flowering significantly increases statistics on disease of allergic origin, which is unacceptable as a region for Crimean status resorts.
In the past year quarantine in separate areas of the peninsula, and the owners of the land on which detects ambrosia Fines. This may seem too harsh measure, but in Switzerland and Germany, even a single plant - is an occasion to call for a special service, which destroys the weed on the spot. Less resolute struggle may last for many years, and its effectiveness can be questioned.
All the methods of struggle with ambrosia can be divided into three types:
The most effective at this point are mechanical methods. This mowing, digging and pulling. The physical destruction of the weed may take more than one year, but the only way you can guarantee to bring it from its site. However, the soil must be constantly inspected, since the seeds can be entered.
Mow overgrown necessary before the seeds appear. Otherwise, they fall into the ground and have to repeat mowing. In this case, it is possible and reusable mowing until the end of the season. The same applies to pulling and digging.
The chemical method It consists in treating the colonies ragweed herbicides. It is used in cases where a weed took too much territory, which manually process problematic. Currently, the sale is a lot of money, have successfully destroy ambrosia, but this method has a drawback: there are restrictions on its use (resort area, settlements, pastures, etc.).
The biological method - is used to control the ambrosia of its natural enemies. At home, in America, there are more than five hundred, and it plants and insects. Of the plants can be planted in the habitat weed alfalfa, fescue, etc., lawn grass and other perennial grasses and legumes. Within 3 years, this way you can force out weeds.
As for insects, it noted that, for example, ambrozievy leaf beetle can eat not only weed leaves, but the shoots of other plants. Therefore, the use of this method in our conditions still experimental.
Alas, no comments yet. Be the first!