Lontrel-300 weed killer: instructions for use, reviews

Weeds in the garden are a problem that is familiar to absolutely all gardeners firsthand. Weeding beds by hand takes a lot of time and effort. However, recently chemicals have appeared that can “selectively” destroy weeds without harming crop plants. These include the herbicide Lontrel-300. The drug receives mostly positive reviews, but to achieve the desired result, you must first study the manufacturer’s instructions and all the nuances of its use.

Composition and release form of the drug Lontrel

Lontrel-300 is a post-emergence systemic herbicide approved for use on personal plots. The drug is produced by the well-known US company DOW AgroSciences. In “amateur” gardening, the herbicide Lontrel-300 is used mainly to protect beds with strawberries, beets, onions and garlic, and on lawns from weeds.

The drug is most effective against the following weeds:

  • sow thistle (yellow, pink, other subspecies);
  • field thistle, cornflower, vetch;
  • coltsfoot;
  • thistle;
  • any type of chamomile;
  • burdock;
  • hogweed;
  • dandelion.

In Russia, the herbicide Lontrel-300 is produced under license by the August brand

Important! Herbicide Lontrel-300 is successfully used against any weeds from the families Solanaceae, Asteraceae, Legumes and Lamiaceae. Rosaceae and Alliums are less susceptible to it.

Herbicide Lontrel-300 is available in the form of a highly concentrated aqueous solution in different volumes. The main active ingredient is contained in a proportion of 300 g/l. For personal plots, buy ampoules of 1.5 or 3 ml or bottles of 10, 45, 90 ml. For farms, canisters with a volume of 0.9, 1 or 5 liters are more suitable. Less commonly, the herbicide Lontrel-300 is found on sale in powder form (packages of 2 kg).

Active ingredient of the herbicide Lontrel

The active ingredient is clopyralid (a “modified” synthetic analogue of a natural plant hormone). After contacting the weed from the outside, it is “absorbed” into the tissue and, through the process of sap flow, quickly spreads throughout the above-ground part and root system.

The growth and development of the weed is inhibited and dies due to an “overdose” of phytohormones

The weed treated with the herbicide Lontrel-300 dies quite quickly. The first results of “suppression” of its growth are observed within 12-18 hours after spraying. The stem becomes deformed, cracks, the leaves lose their tone and curl. The plant finally dies after 15-20 days.

Important! The shelf life of the drug is three years. Unopened containers with it are kept in a dark room with low humidity at a temperature of 5-40 ° C.

Advantages and disadvantages

Among the objective advantages of the herbicide Lontrel-300:

  1. The ability to destroy a weed at almost any stage of its development.
  2. Rapid “absorption” of harmful plants into the tissue, spreading both through the above-ground parts and through the root system.
  3. The effectiveness of the drug Lontrel-300 against many weeds typical of Russia, including those that, due to their developed root system, are almost impossible to completely remove by manual weeding.
  4. Compatibility with other herbicides, fungicides and insecticides.
  5. Lack of phytotoxicity towards “cultivated” plants.
  6. The ability to limit yourself to a single treatment per season.
  7. Safety for human health and pets, provided that the manufacturer's instructions are followed.

The first signs of weed wilting after treatment with herbicide are noticeable within a day

The herbicide Lontrel-300 has very few disadvantages:

  1. Inability to destroy seeds and newly emerging weed seedlings, whose stem and leaves are still in their infancy.
  2. Lack of effect against plants from certain families.
Important! Weeds that can develop resistance to the drug with regular use have not yet been discovered.

Preparation of working solution

The required concentration of the herbicide Lontrel-300 per 10 liters of clean water is indicated in the instructions. It depends on whether it is used on beds with garden crops or on the lawn.

The working solution is immediately prepared in a container from which it is then planned to spray the weeds.

The algorithm is extremely simple:

  1. Fill the container about halfway with water. It should be clean and not too cold.
  2. Pour in the required volume of Lontrel-300 herbicide.
  3. Stir vigorously for 10-15 seconds.
  4. Add the remaining water to the container and stir again.
Important! In powder form, the drug does not dissolve in water very well; sediment remains on the walls and bottom of the container. This reduces the concentration of the active ingredient in the solution and, as a result, negatively affects its effectiveness.

Instructions for use of herbicide Lontrel-300

The temperature range at which Lontrel-300 herbicide “works” successfully is quite wide – 8-25 °C. Most weeds are most sensitive to the chemical in the 2-10 leaf development phase. It is best to spray in the early morning or late evening, on a calm, cloudy day.

It takes the drug 1-1.5 hours to “absorb” into the weed tissue; after this, precipitation does not affect its effectiveness

For maximum effectiveness, it is recommended to apply the solution to the leaves and stem of the weed as evenly as possible, using a sprayer or slot sprayer that allows the formation of medium-sized droplets. Upon completion of processing, all used equipment is thoroughly washed in cool running water.

The consumption rate of Lontrel-300 herbicide is determined by which weeds need to be gotten rid of and how advanced the weeding situation is. It also matters whether the solution is intended for beds or lawns. In any case, during the active growing season, only one treatment of plantings is allowed.

Basic rules for using the drug, failure to comply with which can cause serious harm to health:

  • it is prohibited to spray beds with onions and garlic if they are grown for greens;
  • you should try to avoid getting even small drops of the solution on cultivated plants;
  • Fruit and berry trees and shrubs cannot be processed until the harvest is harvested;
  • any “manual” work on the beds can be started no earlier than three days after treating the weeds with the herbicide Lontrel-300.
Important! The ready-made solution does not have a shelf life, even a minimum. Lontrel-300 herbicide diluted in water should be used within 2-3 hours.

Herbicide Lontrel-300 for strawberries

The concentration of the working solution of the chemical for treating strawberry beds is 1 ml per liter of water. Approximate consumption is about 6 liters per hundred square meters on personal plots and 200-300 l/ha on farms.

The herbicide is used mainly to destroy sow thistle, sorrel, dandelions, and annual weeds in strawberry beds.

Treatments with the herbicide Lontrel-300 on strawberries during the budding period are strictly prohibited. Weeds are sprayed at the very end of the growing season, 10-12 days before the first frost. The chemical somewhat “inhibits” the strawberries, preventing the plants from storing enough nutrients for a normal winter.

Herbicide Lontrel-300 for onions and garlic

To treat onion and garlic plantings, use the same solution as for strawberries. Spray each weed “pointwise”, using 15-20 ml of liquid per plant. The procedure is carried out 2-3 weeks after harvesting.

“Feathers” of onions and garlic from beds treated with Lontrel-300 are unsuitable for food

Important! Similarly, the herbicide Lontrel-300 is used to protect fodder and sugar beet plantings.

Herbicide Lontrel-300 for lawn

Instructions for using the herbicide Lontrel-300 on lawns recommend using a weaker solution - 1.5-2 ml per 5 liters. The drug is effective against most annual and perennial weeds that spoil the appearance of the “green carpet” - dandelions, yarrow, daisies, plantain.The approximate consumption rate of the herbicide Lontrel-300 is 5-6 liters per hundred square meters.

Treatment for “massive” overgrowth of weeds is carried out after the first mowing of the lawn grass, spraying the entire area

Important! People can go out onto the lawn and let pets out on it no earlier than three days after spraying with the chemical.

Compatibility with other tools

Lontrel-300 can be used as a component of a tank mixture, which includes any herbicides with a neutral or slightly acidic acid-base reaction. A “mix” with substances with a strongly acidic and alkaline pH means the formation of a flaky sediment, which negates the effectiveness of the entire “cocktail.” You can also add liquid fertilizers, biostimulants, insecticides and fungicides to the mixture.

Security measures

Despite the fact that the herbicide Lontrel-300 is officially classified as hazard class III, working with it without personal respiratory and eye protection (goggles, respirator) is prohibited. It is also necessary to wear waterproof clothing, shoes, gloves, that is, cover your skin as much as possible

Important! Herbicide Lontrel-300 is practically not dangerous for birds and bees. But its use in sanitary zones of fishery reservoirs is prohibited.

While preparing the working solution and spraying weeds with Lontrel-300 herbicide, you should not eat, drink, or smoke. Children and pets are “isolated” in advance, not allowed into the treated area.

The chemical is diluted only in containers specially designed for this purpose.

If the Lontrel-300 herbicide solution accidentally gets on the skin or mucous membranes, immediately rinse the area in running cool water.If symptoms indicating an allergic reaction appear (swelling, redness, hyperemia, itching, burning, rash), take any antihistamine and consult a doctor.

If the herbicide Lontrel-300 is swallowed, it is necessary to rinse the stomach by drinking 3-4 glasses of a pink solution of potassium permanganate. When the victim’s condition indicates severe intoxication, it is necessary to take him to a toxicologist as quickly as possible. This chemical does not have a special antidote; medications are selected to “relieve” individual symptoms.

Important! The remains of the working solution of the herbicide Lontrel-300 are prohibited from being poured into sewers, water bodies for domestic and fishery purposes.

Analogs of the drug Lontrel-300

There are quite a lot of herbicides with the same active ingredient as the herbicide Lontrel-300. The most commonly used drugs on personal plots are Agron, Biklon, Bis-300, and Corrector.

Other popular herbicides are Percalid, Zircon, Mastak. The first is an almost complete “copy” of Lontrel-300. The second is used mainly on large areas where grains, sugar beets, corn, and rapeseed are grown. The third is most effective against weeds from the Asteraceae, Solanaceae, Lamiaceae, and Buckwheat families, but its effectiveness is noticeably reduced with high air humidity and heavy rainfall.

When choosing a herbicide for the garden, you need to consider which weeds predominate in the area

Conclusion

Herbicide Lontrel-300 is a chemical suitable for both “spot” destruction of weeds in beds with garden crops and for controlling them on large areas of lawns. Its main advantages are systemic action and effectiveness against “undesirable” plants from different families.The chemical is officially recognized as moderately hazardous, but working with it requires strict adherence to the manufacturer’s instructions, precautions and the use of personal protective equipment. Otherwise, you can not only lose your harvest, but also cause serious harm to your health.

Reviews from summer residents about the drug Lontrel-300

Tatiana Saenko, Kirov
In the last 2-3 seasons, the garden has literally been filled with dandelions. The lawn was especially badly damaged - there was no longer any need to talk about any decorative effects. We quickly got tired of weeding them out by hand, so we purchased Lontrel-300 herbicide. The result was very pleasing - just one treatment was enough.
Dmitry Orlov, Novosibirsk
Lontrel-300 was used to get rid of weeds in the strawberry beds that we grow for sale. The main criterion when choosing a herbicide was safety for the crop; positive reviews were also taken into account. The processing took quite a lot of time, but there were no more weeds in the beds.
Anna Khlebnikova, Belgorod
We tried many herbicides, but only treatment with Lontrel-300 gave the desired effect. It helped get rid of both annual and perennial weeds without harming the crop. The main thing is to strictly follow the manufacturer’s instructions during processing and observe safety precautions.

Leave feedback

Garden

Flowers