"Tifi" is a post-emergence herbicide that is actively used in wheat and corn fields. Its solution destroys broad-leaved weeds. It is a systemic pesticide with selective effects. It has a high selectivity in relation to corn.
- Composition, release form and purpose of the drug "Typhi"
- Mechanism of action of the product
- Pros and cons of herbicide
- Consumption rate for different plants
- Methods for preparing the working solution
- Safety precautions for use
- Degree of toxicity
- Compatibility of the herbicide with other products
- How to store it correctly
- Analogs
Composition, release form and purpose of the drug "Typhi"
Tifi is a sulfonylurea herbicide.The drug solution destroys dicotyledonous weeds (annual varieties) that infest barley, wheat, soybean, and corn fields.
It is effective against weeds listed in:
- black nightshade;
- snake knotweed;
- shiritsa (thrown back, zhminovidny);
- field mustard;
- knotweed (rough, snake, kidney, bindweed);
- green, white pigweed;
- garden purslane;
- ropeman of Theophrastus.
The active component is thifensulfuron-methyl. In Tifi its concentration is 750 g/kg. The drug is produced in the form of VDG - water-dispersible granules. Package:
- 100 g bottle;
- box for 100 bottles.
Mechanism of action of the product
An aqueous solution of the herbicide “Tifi” gets on the surface of the leaves and penetrates the tissue. With plant juices, the active substance of the herbicide enters the growth zones (stems, roots). Tifensulfuron-methyl inhibits the production of the enzyme (acelolactate synthase).
After a few hours, the drug begins to act, it inhibits cell division and growth. On the 3-7th day, external symptoms appear in the form of:
- chlorosis;
- tissue necrosis;
- dying off of growth points.
By the end of the 2nd or 3rd week, weeds treated with Tifi solution die.
Pros and cons of herbicide
The remedy for broad-leaved weeds is effective. After spraying, its effect begins within a few hours. Thifensulfuron-methyl quickly decomposes in corn tissues. In fields treated with herbicide, yields increase.
When testing "Tifi" in corn fields of the Krasnodar Territory, the number of weeds was reduced by 88%, the weight by 93%. The addition of “Mix F” increases the efficiency of treatments to 92% and 97%.
The disadvantage of the herbicide "Tifi" is the resistance of weeds to sulfonylureas.Addiction occurs with prolonged use of drugs with the same mechanism of action.
Consumption rate for different plants
For each crop, specialists have developed their own regulations. It indicates the rate, method of application, waiting periods, and the number of applications per season. The approximate time of protective effect is 8-10 weeks.
| Culture | Weed | Processing method | Phase | Dose (l/ha) | Specifics
|
Treatments per season | Duration of action (days) | Consumption (l/ha) |
| Wheat (winter) | Dicotyledons, annuals | Spraying | Spring, tillering phase | 0,015 | Add 200 ppm/ha “Mix Zh” | 1 | 60 | 200-300 |
| 0,02-0,025 | — | |||||||
| Wheat (spring) | 0,01-0,015 | Add 200 ppm/ha “Mix Zh” | ||||||
| 0,015-0,02 | — | |||||||
| Soybeans | 1-2 true leaves | 0,006-0,008 | Add 200 ppm/ha “Mix Zh” | |||||
| Corn | 3-5th sheet | 0,01 | Add 200 ppm/ha “Mix Zh” | |||||
| Flax Dolgunets | Dicotyledons, annuals | Spring spraying | "Herringbone" | 0,01-0,015 | Add 200 ppm/ha “Mix Zh” | 1 | — | 200-300 |
| 0,01-0,025 | — | — | ||||||
| Oil flax | 0,025 | — | 60 |
Methods for preparing the working solution
First prepare the mother liquor. The capacity of the sprayer determines its quantity. The dose of herbicide is poured into a bucket one-quarter filled with water. After thorough mixing, add water - ¾ volume.
The sprayer container is filled according to the following scheme:
- Fill ½ volume with water.
- The mother solution is injected.
- Add water.
The mixture of “Tifi” and water is constantly stirred with a stirrer. The principle of preparing tank mixtures is the same. The concentrates are not mixed; they are added to the working tank of the sprayer one at a time. Surfactants are introduced last.
The Tifi working solution is consumed immediately.
Safety precautions for use
When the sprayer is operating, the wind speed is not higher than 4 m/s, the air temperature is within 25 °C. The crops are treated in the evening or in the morning. In drought or heat, mineral fertilizers should not be added to the working mixture.Due to its low toxicity, the drug is not prohibited from being used in water protection zones.
Degree of toxicity
For mammals, humans, and bees, “Tifi” is not very dangerous. It was assigned hazard class III.
| An object | Toxicity |
| Birds | Low |
| Fish | |
| Bees | |
| Groundwater | |
| Open waters |
Compatibility of the herbicide with other products
Organophosphate insecticides cannot be mixed with Tifi. The interval between treatments is 10 days. The active ingredient tifensulfuron-methyl is compatible with carbamate insecticides and herbicides:
- "Super";
- "Dialen";
- "Octapon";
- "Banvel."
How to store it correctly
The drug can be stored in a warehouse equipped room for 3 years.
Analogs
The drug has analogues for the active substance. The Allert and STS suspensions destroy annual dicotyledonous weeds in fields with soybeans, flax, and corn.
A surfactant - BIT 90, Zh. is added to the working solution of the imported herbicide "Allert".
Aton and VDG are produced in the form of granules. It has a wide spectrum of action. They destroy dicotyledonous weeds in corn fields. "Aton" is added to tank mixtures. The drug has many advantages:
- low consumption rate;
- easy to use;
- practical packaging.
Other analogues produced in the form of VDG: “Alfa-Guard”, “Shansti”, “Blend”.
