Lapis lazuli is a reliable weed control
Lapis lazuli is a super effective remedy for weeds in the garden. The herbicide is selective and helps control a variety of weeds.
- Instructions for the drug
- Chemical composition
- Release form
- Cost and analogues
- Impact principle
- Advantages and disadvantages
- Preparation of the solution
- Rules and times
- To protect potato bushes
- For spraying tomatoes
- When not to apply
- Precautions
- Assisting in defeat
- Compatibility with other drugs
- Storage and validity
- Testimonials
Lapis lazuli is a reliable weed control
Instructions for the drug
Lapis lazuli is a universal remedy, belongs to the group of Herbicides (chemistry).
- It is used in industrial and private cultivation of potatoes and tomatoes.
- Not suitable for garden beds where you plan to plant cucumbers, carrots, beets and other vegetables.
Chemical composition
The main active ingredient is metribuzin (70%).
It has a selective character, selectively affecting certain weed species and without affecting cultivated plants from the Solanaceae family, which have a similar cellular structure of vegetative parts - stems and roots.
Poorly soluble in liquid, retains in soil layers for up to 2 months. In some cases it precipitates and remains in the ground for up to a year.
Release form
Available in powder form. It is packed in bags for single use in a private household of 10-20 g, for industrial purposes - in boxes and bags of 0.5-10 kg.
Cost and analogues
The price depends on the volume of the package. Average. is 65-100 rubles.
The inexpensive drug has analogues that can be bought on the agricultural market:
- domestic - Excellent from the manufacturer "Green Pharmacy", Miura, Lazurit-SP from the firm August;
- foreign Zenkor.
Impact principle
Metribuzin acts as an inhibitor of photosynthesis. In the absence of this process, weed vegetation does not develop, stops growing and dies, without interfering with the normal development of cultivated plants.
Attention! Lapis lazuli is not a fertilizer and does not increase yields.
The drug has a destructive effect and destroys all vegetative parts of weeds - the root system, seeds, stems and foliage, getting into plant cells through their surface.
The dried grass is harvested by raking and burned.
The agent simultaneously has a detrimental effect on the pathogen of phytophthora.
It acts as an effective alternative to manual weeding, in which the root system of immature shoots is often damaged, the soil layers are drained.
Advantages and disadvantages
| pros | Minuses |
| 1. Failure to comply with the norms stipulated by the instruction leads to a reduction in the storage period of vegetables and their rapid deterioration.
2. Violation of the regularity of application leads to negative consequences - the accumulation of metribuzin in vegetables, which is toxic to humans. |
Preparation of the solution
To combat weeds, the herbicide is used in the form of an aqueous solution. Treatments are carried out by watering or spraying.
- For a single (primary) treatment: 1 package (20 g) is dissolved in 1 liter of water, then the volume is brought to 6 liters.
- The second time the powder is dissolved in 20 liters of water. Allowed to make the concentration more, up to 0.5%.
Rules and times
Suitable for use during the entire vegetative period.
The optimal time for treatment with Lapis lazuli is the phase of development of vegetable crops (from the moment of planting to the appearance of the first shoots) up to 20-30 days of age of the shoots.
Weed control
This is explained by the fact that at the early stage of growth, the susceptibility to the active substance is the smallest.
Basic Rules:
- moisten the soil before use, spud the bushes;
- processing is carried out on a calm day;
- the optimum ambient temperature is not lower than 15 ° C, in colder weather the active component loses its effective properties;
- if there is a heavy rain immediately after the procedure, repeat it;
- the minimum dosage of the drug is used on light soils, the maximum - on heavy ones;
- the beds are sprayed with a liquid working solution immediately after its preparation, because in the course of long-term storage, it loses its effective properties;
- splashing is required directly on the bush, without getting on other crops;
- before using the herbicidal agent, prophylactic procedures are initially carried out against pests, for example, by the Commander.
To protect potato bushes
| Way | Time | Consumption | Dosage |
| One-time | In some moment | 0.7-1.4 kg per 1 ha | 10 g for 3 l of water |
| Double | Until the moment of germination | 500 g-1.0 kg per 1 ha | 10 g for 3 l of water |
| Process the spudded tops of potatoes (no later than germination of seedlings 5 cm in height) | Up to 0.3 kg per 1 ha | 10 g for 9-10 liters of water |
For spraying tomatoes
| Way | Landing type | Dosage |
| One-time | Sowing seeds | up to 7 g per 10 l of water |
| Seedling | up to 15 g per 10 l of water | |
| Double | Sowing seeds | 1. At the stage of appearance of 2 sheets: up to 2.5 g per 10 liters of water 2. When forming at least 3-5 sheets: up to 5 g per 10 liters of water |
| Seedling | 1. After planting in open ground: up to 15 g per 10 liters of water 2. After 2 weeks: up to 10 g per 10 l of water. |
When not to apply
- When the soil contains less than 1% humus;
- On plantings that have recovered from plant diseases or suffered from frost, with mechanical damage, through which the active ingredient can penetrate the cell layers;
- When cultivated plants were planted early in the garden;
- On dry soils.
With small amounts of weeds, it is recommended to limit the use of the herbicidal agent, replacing it with manual weeding and subsequent mulching.
Precautions
The toxicity of Lazurite is low, the drug belongs to the 4th hazard class.
It does not harm beneficial insects, incl. bees. However, in the process of application, it is necessary to observe precautions:
- use personal protection, covering open areas of the skin, eyes and respiratory tract from the ingress of the active substance;
- do not open sealed packages during transportation;
- exclude joint storage with food, drinking water and feed mixtures for animals.
Assisting in defeat
In case of metribuzin poisoning during the treatment process, general signs of malaise appear: headache, perspiration, hoarse voice and dizziness.
If you have these symptoms, you should immediately stop the procedure, leave the place and provide fresh air.
If the solution comes into contact with a part of the body:
- on the skin - wash off with plenty of soapy water;
- in the eyes - wash with running water at room temperature for at least 0.5 hour;
- inside - the stomach is washed and absorbing drugs are drunk.
Compatibility with other drugs
Lapis lazuli can be used simultaneously with other herbicides without reducing their effectiveness.
It is also compatible with other substances, if treated in combination or alternately in order to increase the detrimental effect on weeds.
Storage and validity
In sealed original packaging, the herbicide is stored at temperatures ranging from -10 to 40 ° C. Subject to the necessary conditions, it is suitable for use for up to 5 years from the date of issue.
Testimonials
The herbicidal agent Lazurit is intended for weed control. Possesses a selective method of action, destroys selective types of weeds, without affecting the vegetative parts of cultivated plants from the Solanaceae family.
It is actively used for tomatoes and potatoes. Requires compliance with the dosages specified in the instructions and the regularity of application, because can accumulate in vegetables.
The pesticide is harmful to humans. According to customer reviews, the herbicide poison effectively copes with the protection of root crops.