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Herbicide Octava: instructions for use, mechanism of action and consumption rates

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Herbicides are used to destroy vegetation in a certain area. This group of funds is used in agriculture, and is also in demand by private individuals for cleaning a summer cottage or home garden. Two-component herbicides, such as Octava, are most effective due to the combination of different chemicals, as well as their targeted complex action.

Composition, release form and purpose of the herbicide Oktava

Octava is a mixture of two chemicals that, when actually combined in one vial, do not physically mix with each other due to structural features.The oil dispersion resulting from the combination is intended for the treatment of crops of annual and perennial crops.

Octava belongs to the group of herbicides of the selective type, which means a directed type of action when the treatment is directed against a specific crop.

The composition of Octave is a mixture of nicosulfuron and florasulam. The ratio of substances is within the boundaries of the formula: 60 grams per liter to 3.6 grams per liter, respectively. The dispersion is produced in a volume of 10 liters, poured into plastic canisters with a tightly screwed lid made of dense plastic.

Help! For humans, this drug is not dangerous, it belongs to the 3rd class among systemic pesticides.

Mechanism of herbicide action

The main base substance of the drug acts as a blocker in the rate of chemical reactions that result in cell division.Due to the cessation of the production of the central enzyme, the growth of weed plants slows down, necrosis gradually develops, and then the plant dies.

The second element of the composition reinforces the overall effect on protein synthesis, and also aggressively breaks the chain that ensures the development of plants at the cellular level.

Signs of herbicidal action

Herbicidal action develops over 2-4 weeks, it is possible to more accurately predict the reaction, given the characteristics of the treated crop. Analysis of the effectiveness of the impact is carried out in time steps.

Each of them has its own distinctive features:

  • growth processes stop at the initial stage;
  • then begins to develop chlorosis, which is expressed in a noticeable yellowing of the leaves;
  • after a few days, symptoms of tissue necrosis become noticeable.

Main advantages and disadvantages

Among the advantages of the drug are the distinctive features characteristic of formulations based on two components:

  • both components provide maximum penetration into plant tissues;
  • oil base helps create a soil screen that prevents new shoots from growing;
  • the maximum result is achieved by spending a small amount of the product, since due to the presence of two bases it is more concentrated;
  • prolonged period of action of the drug due to the peculiarities of the structure of the drug;
  • composition is reinforced with adjuvants that contribute to the herbicidal effect.

Drug consumption rates

100 to 200 liters of working solution may be required to process 1 hectare. The exact flow rate depends on the type of soil, as well as the characteristics of the weeds to be sprayed.

How to prepare a working solution

Composition for spraying diluted before direct use. Instructions for preparing the required composition:

  1. The required amount of substance is taken for 10-20 liters of water, taking into account the fact that the total percentage of the content should not exceed 50 units.
  2. The resulting mixture is stirred using a special device.
  3. The atomizer is filled with liquid.
  4. The tank from under the prepared mixture is rinsed with 1-2 liters of water, the resulting liquid is added to the sprayer.

Instructions for using the working mixture

The working solution is poured into sprayers specially designed for processing with hoses equipped with special tips. Then the sprayer is brought into working condition, the processing of the territory begins.

After processing, the spray tank is washed and dried. The site where the refueling took place is additionally washed.

Information! Tanks must be approved for use with pesticides.

Precautions for its use

Preparation of the working mixture, processing of crops, refueling is performed using protective gloves and face masks. Special polyethylene aprons are used to protect clothing from chemicals.

Means toxicity

Drug Oktava belongs to the group of systemic pesticides. It is a composition that is not dangerous for humans and bees.

3 hazard class allows it to be used for the treatment of vegetable crops, but it is not used near water bodies so that the substances of the composition cannot enter the water and affect the life of amphibians.

Compatibility

Before using the tank mix, a general compatibility test is carried out. The elements are mixed in a small container. The result is evaluated 1 minute after mixing and 30 minutes after mixing.

Help! Drug compatibility cannot be accurately predicted as each case is different.

Physical-chemical properties of the composition may change due to the use of melt, rain or excessively hard water.

How to properly store the drug

Octave is stored without loss of quality for 2 years from the date of manufacture. At the same time, it is necessary to maintain the integrity of the canister, do not additionally freeze or heat the container.

Are there any analogues?

Octava herbicide, as a two-component herbicide of a selective type, has no analogues in the presence of basic substances, but among the group of pesticides there are similar preparations that are used to treat annual or perennial crops.

Aegis is a systemic drug that has a high degree of effectiveness against weeds. Contributes to the creation of a soil screen, prevents the emergence of new shoots, can replace Octave when processing corn.