If we talk about the use of pesticides in agricultural technology and especially in the LPH, then the herbicides should be put last in the queue. The reason: they “beat” on plants, i.e. on the lowest, most vulnerable, links of trophic chains. But, on the other hand, it is extremely difficult to eradicate the color-sprung root-weed weeds in small areas occupied under the skull of various crops. It is equally difficult to clean the lawn from innocuous, but spoiling its appearance of hard-flowering annuals. In such cases, the herbicide Lontrel - relatively harmless and safe means (assuming that truly harmless and safe herbicides are possible).
Field thistle (marked green in Fig. Below), thistles and burrs are the most valuable honey-bearing plants and feeding stations of useful insects: imago entomophages and wild pollinators. In a number of countries, these terribly prickly and terribly useful in nature, the hardwoods are protected by law, and responsibility for their destruction, including criminal liability. If the young leafy sockets of the bodyguard and his relatives are seen on the beds or the flower garden, they certainly need to be lime. But, suddenly, such a handsome man vymahal on unproductive areas (the author once had a chance to see a bodyak 4.2 m high and with a stem circumference at the root of more than 40 cm), then, before planting a herbicide, walk around the neighborhood and see if it is a random stranger or his fellow grow somewhere else. In the first case - let it be disseminated and disperse the diasporas, and destroy the young growth on the site next spring (see below). A sensible approach based on the principle “everything is poison, and everything is medicine” will return with a yield increase and a reduction in the cost of pesticides.
Weeds destroyed by the Lontrell herbicide
Note: Botanical Diaspora is a unit of plant dispersion. In this case, the diaspora is a seed, but it can be pieces of vegetative tissue, and even young plants, like in a house Kalanchoe.
As for the marked yellow burdock of felted, dandelion medicinal, plantain large and horned moth (marked yellow), they are medicinal, fodder and even food plants. Before you poison them, try to assess the degree of harm from them: you may be able to do laborious, but harmless to biocenoses by hand weeding. Well, with beautiful pretty (“loves - does not love”), but with chamomile odorless, mountaineer, buckwheat, wild lettuce and wild sorrels in productive areas, it is not necessary to stand on ceremony in the cultivated plants. And even more so with a creeping bitter and a garden sludge (marked in red): the most difficult to get rid of them without chemistry. The roots of these weeds go very deep, it is impossible to tear them away entirely without deep plowing, and on the tiny remnant of the root in the soil there will definitely be a renewal bud.
Note: did you know that the title of the Ray Bradbury story “Dandelion Wine” is not a metaphor? Dandelions really make a light, tasty wine.
Composition and action
Lontrel is a specialized (directional, selective) herbicide. Its phytotoxicity is extremely high for asteraceae, umbrella, buckwheat and legumes. On other weeds, resistant to derivatives of aryloxyalkanoic acids, has a weaker effect. Less toxic to rosaceae, onions and amaryllis, so with some precautions (see below) apply for strawberries, onions and garlic not on the pen. It is selective with respect to crucifers (cabbage, beets), cereals, and haze, therefore, unfortunately, it is useless to try to fight Lontrel with rape, quinoa and their relatives.
Clopyralid Chemical Formula
The active ingredient (DV) Lontrela is clopyralid, a compound of dichloropyridine and carboxylic acid (formula in the figure on the right). His chemical class is not yet established. If it were not for chlorine, then structurally klopiralid is similar to vitamins, and so - let the chemists decide where to define it.
Kloperalid has a strong systemic effect: when it hits the leaves it is quickly absorbed into the plant tissue and spreads throughout the plant. Information on the absorption of clopyralid through roots needs to be independently verified, and therefore it is positioned on the market as a post-emergent herbicide.
In plants, clopyralid blocks the synthesis of growth phytohormones, without itself undergoing chemical changes. The soil is resistant, half-life up to 1 year, depending on local conditions. Hence, in combination with a high translaminar ability, the important features of the drug use follow:
- Lontrel is most active in optimal plant growing conditions: in the temperature range of 20-25 degrees and with sufficient light.
- Treatment of weeds in the phase of fruiting, starting from the appearance of the peduncle, is meaningless: its hormonal mechanisms have already been rearranged and the weed will have time to seed.
- The processing of plantations of fruit and vegetable and fruit crops is permissible only for perennial after harvest, because otherwise DV will surely fall into the fruits, and its concentration in them will not have time to fall to the MPC before the crop rot.
- Bean crops on the areas treated by Lontrelo are permissible only one year after the use of the preparation, and cereals are not earlier than next spring.
Advantages and disadvantages
Lontrel is a fairly fast-acting herbicide. The oppression of the treated plants becomes noticeable by the course of the day (the points of growth are shrinking). The next day turgor disappears, growth stops and the twisting of the shoots begins, and after 3-15 days the weeds die along with the roots. If their seeds are not left in the soil or are not brought in from the outside, the plot is cleaned to the next. of the season. Dosages and consumption rates of the drug are minimal, especially in the case of spot treatment (see below), therefore, in LPH against sow and bitter Lontrel it turns out to be quite profitable.
The main disadvantages of Lontrela affect large areas: the preparation of roads (more than 12 thousand rubles per 1 kg of technically pure DV), and does not affect seeds and seedlings. Therefore, for mechanized use according to hectare treatment norms, Lontrel is noncompetitive. In LPH, there are many more opportunities to look when the weeds are deployed to a rosette, while not yet ready to bloom, and here the cost of one treatment by Lontrel is several times lower.
Note: Straw and tops of the dead from Lontrela weeds are suitable for organic fertilizer for seedlings (not adult plants!) after composting for at least 3 months.
Lontrel in the Russian Federation is produced by Avgust LLC (avgust crop protection) and under the license of Syngenta Crop Protection Dow AgroScience (Dow AgroScience GmbX) next. preparative forms:
- Lontrel 300 - Dow, cans of an aqueous solution (BP) of 5 liters for use in large areas. The concentration of LW 30% (300 / l). Price for 1 liter approx. 3300 rub. for the summer of 2018, tare units approx. 16 500 rubles,
- Lontrel 300 D - August, 3 ml ampoules, 45 and 90 ml bottles, 0.5 and 1 l each - for use in private farms and farms. Concentration DV 30% Price for 1 l approx. 4000 rub. in the summer of 2018,
- Lontrel Grand - Dow, packets of water-dispersed granules (EDC) 2 kg in aluminum foil. The concentration of the active ingredient 75% (750 g / kg). So to say, “economy option” for large areas, the owners (operators) of which have production equipment, areas and specialists for preparing large quantities of the working solution: the price of 1 kg is approx. 11 000 rub. for the same period of time, for a tare unit approx. 22 000 rub.
All tare units of the herbicide Lontrel in the opened form are not subject to storage. The preparation from the opened package should be used immediately (during the working day).
About Lontrela Grand in a private sector
Quarantine weed ambrosia polynnolistnaya
Lontrel Grand in the Russian Federation is not approved for use in private farms: a high concentration of DV and its dusty consistency make this drug dangerous to use. However, Lontrel Grand, in contrast to the 300 and 300 D marks, is effective against such a terrible quarantine weed without exaggeration as an ambrosia polynnolistnaya, see fig. on right. The hectare consumption rate of Lontrela Grand against ambrosia is 0.25 kg / ha. If co-owners of a newly created garden and garden partnership, etc. due to lack of funds, it will be necessary to acquire a waste land overgrown with ambrosia, then clearing it with Lontrell Grand will be much cheaper than other herbicides of similar effect. Given the fact that for the treatment will have to hire professionals - to mess with Lontrel Grand at home is not recommended. For processing, it will be necessary to obtain permission from the local sanitary inspection, but it will most likely be issued without delay: ambrosia (especially its light flying pollen) is a strong allergen, and its carcinogenicity has recently been established. If clearing is done in the spring, next year most of the garden and garden crops, except legumes, can be sown / planted over this land, and another year without any restrictions. In the summer after cultivation, the land needs to be plowed deeper, and left in winter for fallow.
Note: Access by people without PPE (see below) on the area treated by Lontrell Grand is possible no earlier than 7 days after the completion of work.
The Lontrel herbicide in tank mixes is compatible with any means of agrochemistry that have a neutral or weakly acid reaction. It is incompatible with basic (alkaline) preparations: bases form insoluble salts with a carboxylic acid residue, which precipitate out, making the whole mixture useless. On the other hand, acids stronger than malic acid (citric, acetic, and inorganic of equal or greater strength) replace the carbon residue, which gives a similar result.
Lontrell is a 3rd class hazard substance for humans and bees, 2nd or 1st for aquatic organisms, 4th for birds. Doses of LD50 of clopyralid are quite high: for rats, 2675–5000 mg / kg body weight, DSD for humans is 0.15 mg / kg body weight. In the body warm-blooded drug rapidly decomposes and its metabolites are excreted in the urine. However, Lontrela’s high translaminar activity requires precise precautions when handling it.
Note: LD50 dose of a substance, after which 50% of experimental animals die. DSD - the permissible daily dose of substance penetration into the body.
Based on the properties of the drug, the protection zones for working with the Lontrel herbicide are as follows:
- Apiary, natural reserves of wild pollinators - 5 km (bearing in mind the high attractiveness of elimination objects for pollinating insects.
- The limitation of the summer of bees is 36 hours, since the drug quickly penetrates the plant.
- Reservoirs, open sources of water supply - according to their water protection zone.
- Captured water supply sources, children's and recreational facilities, recreation areas - 150 m.
- Adults without PPE - 50 m without gender restrictions, as post effect of clopyralid for humans is not marked.
- Residential buildings, farm building - 15 m.
Note: nevertheless, pregnant and lactating women should be closer than 150 m to the zone of work with Lontrel and, moreover, it is impossible to work with the preparation!
PPE for working with Lontrel are mainly used for substances of the 3rd class of danger: a respirator and goggles on the face, work clothes and a headdress, complemented by a plastic rain cover with a hood on the body. However, again, due to the high translaminar activity of the drug, the protection of arms and legs should be given special attention.
Features of the treatment of plants with the Lontrel herbicide
Shooting the weeds as targets in the dash (on the left in the pic.), Feeling like a fearless hunter, is impossible. First, the drug can get on unprotected hands. Secondly, the weed will die, but on the lawn a pleshin could well be formed. We need to treat Lontrel with weeds on the juvenile phase (not ready for flowering), preferably to a point (close together individual specimens), and to wear protective rubber gloves (not latex household!) Protective gloves, in the center in fig. If the treatment is carried out on the squares, you need to wear rubber boots on the feet to the right.
The Lontrel herbicide is stored in the usual conditions for agrochemistry: in a separate room, inaccessible to children and animals and not intended for the storage of food and drugs. Neutralization spilled - a solution of baking or soda ash.
The working solution of Lontrela is prepared in the sprayer tank immediately before use, this herbicide is introduced last in the tank mixtures. A measured dose of the drug is poured into the filled tank, the device is shaken and started to work. Processing is not quite the usual rules: in calm, warm weather, but preferably clear, in the late morning hours, when the elimination objects are already going to vegetate. Time to rain - 6 hours.
Instructions for use of the herbicide Lontrel are given in table. below. Still, this herbicide significantly inhibits the Rosaceae, therefore it should be used on strawberries over the areas as late as the weeds allow them, so that the cultivated plants can accumulate more nutrients for wintering.
Onion, cruciferous and cereals are not the target crops for Lontrell, therefore, they are spotted spraying the spotted rosette outlets and his “colleagues”, which especially strongly compete with productive plants for nutrition and thus reduce the quantity and deteriorate the quality of the crop. In addition to the experiments on the use of the Lontrel herbicide by private owners on the plot, see the video compilation below:
The article was compiled using the following materials:
State catalog of pesticides and agrochemicals permitted for use on the territory of the Russian Federation, 2014. Ministry of Agriculture of the Russian Federation (Ministry of Agriculture of Russia) & nbspDownload >>>
State catalog of pesticides and agrochemicals permitted for use on the territory of the Russian Federation, 2015. Ministry of Agriculture of the Russian Federation (Ministry of Agriculture of Russia) & nbspDownload >>>
State catalog of pesticides and agrochemicals permitted for use on the territory of the Russian Federation, 2016. Ministry of Agriculture of the Russian Federation (Ministry of Agriculture of Russia) & nbspDownload >>>
State catalog of pesticides and agrochemicals permitted for use on the territory of the Russian Federation, 2017. Ministry of Agriculture of the Russian Federation (Ministry of Agriculture of Russia) & nbspDownload >>>
The state catalog of pesticides and agrochemicals permitted for use on the territory of the Russian Federation, 2018. Ministry of Agriculture of the Russian Federation (Ministry of Agriculture of Russia) & nbspDownload >>>
Lontrel 300D, BP: Herbicide Description
The drug Lontrel 300D has established itself as an effective systemic remedy for weeds on private plantings of strawberries, amaranth (beetroot) and cruciferous (cabbage) crops, on cereal fields (flax, etc.), on decorative lawns. It is a chemical (clopyralid) of post-harvest use, which decays long in the soil and organic matter after spraying, and therefore is used only once per season. It is considered the most productive in the fight against thunder. In addition, the herbicide shows excellent results in the elimination of:
- Young shoots of dandelion, buckwheat, lettuce, thistle, mountaineer, etc. in the garden,
- Blue cornflower, chamomile and others on cereal crops (including corn, wheat, barley),
- Plantain, shepherd's bag, dandelion, etc. on the lawns (when forming or correcting the site).
Herbicide Lontrel-300D from weeds
Packaging: 3 ml ampoule per bag, 9 ml vial, 7x1.5 ml ampoule, 45 ml vial, 90 ml vial, 0.5 l vial, 1 l vial.
How does the drug
The tool has the ability to penetrate into the organic structure of the weed, burning it from the inside as it spreads along the vegetative mass. The very next day after spraying the Lontrela 300D working solution, abundant weed aging is observed. After 2-4 days, unwanted plants die completely. The drug for a long time retains its chemical stability on the ground, so it does not require reuse in the current season. Means moderately dangerous to humans and animals. The persistence (danger to the environment of the site) of the chemical has not been proven.
How to use Lontrell 300D
The most common form of drug release is a concentrated solution in ampoules and vials from 3 to 1000 ml. Rarely on the market are water-soluble granules Lontrela (prepare the solution according to the instructions). The working density of the spray solutions varies from 1.5 to 6 ml. concentrate 3-5 l. water per 50-100 square meters. m. square. Spraying performed in the period of early development of weeds, in the evening (morning), in a dry windless day.
Follow the manufacturer's recommendations for dilution of the drug and precautions when using it. Lontrel 300D is not used for continuous processing of the garden, because it has a detrimental effect on some cultivated plants, in addition to weeds (see the phytotoxicity table in the instructions). Means destroys clover plantings. Not recommended for use on herbage for harvesting hay. The chemical does not pose a danger to birds, low toxicity to bees.
Herbicide "Lontrel-300": active ingredient and release form
Acting the substance of the herbicide "Lontrel 300" is clopyralid. In one liter of the drug contains 300 g of the active substance.Kloperalid It is a white-colored crystals, characterized by high activity on the weeds and a selective mechanism of action. Herbicide is available in the form of an aqueous solution with a capacity of 5 liters.
It is worth noting that the manufacturer has recently released another, more modern preparative form "Lontrela" - "Lontrell Grand."
Active ingredient is clopyralid, only it contains it in the form of a potassium salt. Means is issued in the form of water-soluble granules. The clear advantages of the new development include:
- more convenience during transportation and storage,
- greater efficiency in consumption (for the treatment of 3 hectares of area will require 1 liter of "Lontrela 300", while 1 kg of "Lontrela Grand" will last for 8 hectares)
On sale You can also find the “mini” format of the herbicide - “Lontrel 300 D”. It is released in the form of an aqueous solution by packing in 90 ml, 500 ml and 1 l, as well as in 3 ml ampoules.
Designed mainly for the treatment of lawns and strawberries.
For what crops is suitable
Lontrel is one of the most effective broad-spectrum herbicides and is designed to protect such agricultural and garden plants:
- winter wheat, spring,
Lontrel is also used to treat lawn mowers.
The mechanism and spectrum of action of this drug
"Lontrel 300" - systemic herbicide. Getting on the plants, it is absorbed by their leaves and quickly penetrates the root system. Herbicide replaces plant hormones and blocks their functionality.
This leads to a serious disruption of metabolism and growth, as a result - the death of weeds.
The drug has a selective effect and detrimental effect only on certain types of annual and perennial weeds.
With the help of "Lontrela" you can get rid of these weeds:
- chamomile not smelly
- blue cornflower, flattened,
- milk thistle,
- sunflower self seeding.
- curvature of stalks and shoots
- thickening of the stem, the formation of cracks on it,
- twisting foliage.
Advantages of the Lontrel-300 herbicide
Lontrel-300 has been used for weed control for more than twenty years, and during this time it has proven itself very well in this field. The benefits of herbicide include:
- has a wide range of effects
- differs in the minimum terms of destruction of weeds,
- does not harm the soil
- non-toxic to protected agricultural crops
- not addictive in weeds,
- destroys not only the above-ground part of the weeds, but also the root system, which is especially important in the fight against sow thistles,
- the preparation is not afraid of precipitation that fell within an hour after treatment.
Method of application: solution preparation and consumption rate
To prepare the solution of the herbicide "Lontrel 300" you need to strictly according to the instructions, so as not to harm the plants to be protected. Spraying should be carried out only with a freshly prepared mixture (it is not recommended to store it for more than one and a half hours).
Before using the drug is well razbaltyvat in the factory capacity. Herbicide is mixed with water in accordance with the norms of consumption specified in the instructions. First, 1/3 of the tank must be filled with water, add the preparation, mix thoroughly, then top up the rest of the water and mix again. Recommended consumption rate: 300-400 liters per hectare.
For more effective action drug treatment should be carried out at air temperatures from + 10 ° C to + 25 ° C, on a calm calm day.
In case of significant contaminationas well as in the fight against bitterness or thistle should use the highest rate of consumption of the specified in the variation. The mixture must be evenly sprayed on the leaf surface of the plant.
Impact speed and period of protective action
"Lontrel" begins its action after a couple of hours after spraying.
Plant growth slows down, and visible signs of damage to weeds appear after about 13-17 hours. After 1.5 weeks, the leaves noticeably curl and discolor, and after about 14 days after spraying, the weeds die off altogether.
The duration of the protection is saved throughout the growing season weed plants, which shoots were on the site during processing.
The drug belongs to third grade hazard (moderately hazardous). It does not cause skin irritation or damage to the respiratory tract mucous, non-toxic to birds, fish, moderate toxic to domestic animals.
Not dangerous for bees. However, it is a chemical agent, which means that the treatment with Lontrell 300 requires the use of the following safety measures:
- when working with a herbicide, you need to protect all areas of the body with clothes, use gloves, a mask or respirator, hide hair under a headdress, protect your eyes with glasses,
- in the process of preparing the mixture and spraying not to eat food and drinks,
- do not use in food processing capacity,
- after spraying, wash your hands well with soap,
- do not process flowering pollinating plants during the period of bee activity,
- spraying is carried out in the morning (before 10.00) or closer to evening (after 18.00) on a windless day,
- during spraying and a couple of hours after it, do not allow animals to the treated area.
First aid for poisoning
In cases of direct contact with the drug, you must perform the following steps:
- in case of contact with the skin - thoroughly rinse the area under running water,
- if the solution gets into the eyes, rinse them well under the flow water for five minutes, with prolonged serbezh or reddening of the eyes, a sudden deterioration of visual acuity - contact an optometrist,
- if ingested, drink large amounts of water and take activated carbon, based on body weight.
A person who is unconscious cannot vomit.
If you feel dizzy or have shortness of breath from inhaling the vapors of the solution - you need to go out into the fresh air. There is no specific antidote to Lontrel, therefore only symptomatic treatment is carried out.