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Among the large line of fungicides produced by the flagship of the chemical production company BASF, Abacus Ultra has become one of the best means for preventing diseases of cereals caused by fungi.
Composition, mechanism of action
The active ingredients of the fungicide are pyraclostrobin and epoxiconazole. Their concentration is 62.5 g / l. The effect of their application is maximum.
- Pyraclostrobin belongs to the class of strobilurins. It has a systemic effect on plants. In fungal organisms, when it is used, the mitochondrial conductivity is disrupted, due to which the cells cease to be supplied with energy. Both the spores and the mycelium of the fungus perish. Pyraclostrobin is able to bind to wax deposits on the leaves of grain crops; it gradually moves into the plant from the treated surface. Its main function is to prevent the penetration of pathogens into the leaf apparatus.
- Epoxiconazole belongs to the class of triazoles and has a translaminar effect. It disrupts the synthesis of ergosterol in fungal microorganisms. Epoxiconazole is absorbed by plants quickly and, spreading through the vessels, provides their internal protection.
The combined effect of these two drugs - fungicides is diverse and is not limited to the protective function.
Biofungicide increases the density of chlorophyll in the leaf apparatus of plants, somatically enhances photosynthesis. By binding carbon dioxide, plants form carbohydrates more intensively, starch accumulates, and grain yield increases.
This becomes possible due to the increase in the mass of 1000 grains by increasing the amount of starch and protein.
Abakus Ultra - fungicide improves stress resistance of grain crops. This is due to an increase in the amount of growth hormones with a decrease in the effect of oxidative compounds on plants. Since stress causes them to release ethylene, which is the aging hormone, the ripening phase of the grains begins faster, this prevents them from growing fully. Thanks to Abakus Ultra, the formation of ethylene is inhibited, the plants spend all their energy on the formation of a full-fledged crop, their aging slows down, the leaves do not turn yellow longer. Active chlorophyll allows you to produce more carbohydrates, better assimilate nitrogen.
Cytokines, abscisic acid, and other growth hormones under the influence of the fungicide Abacus Ultra are found in cereals in optimal quantities.
The fungicide reduces the "sun spots" on the leaves of barley, which appear in late spring due to the bright sun after rain. Because of them, the tissues die off, and the plants age prematurely, which reduces the yield. Abacus Ultra prevents this.
A high yield of cereals is possible only with a healthy state of their leaf apparatus. If the top four leaves: the third, fourth, subflag and flag are not sick and function correctly, this increases the maximum yield by 80%. It is during the development of these leaves that the peak incidence of fungal diseases occurs. Therefore, it is so important to prevent them and ensure the process of photosynthesis by 100%.
On average, it is about 7.8 c / ha, the weight of each 1000 grains increases by 6.3 g.
The contribution of various vegetative organs to the total yield can be presented in the form of a table.
Vegetative organ | Increase in yield |
Third sheet | 7% |
Fourth leaf | 2,5% |
Fifth leaf | 0% |
Sub-flag sheet | 23% |
Flag leaf | 42,5% |
Ear | 21% |
How and when to process
If you read the instructions for the use of the fungicide, it becomes clear that it is effective for the prevention of many diseases caused by fungi: various spots, powdery mildew, pyrenophorosis, rust: brown and stem, septoria, which manifests itself on the ear and leaves, rhynchosporia. Features of the use of Abakus Ultra for the prevention of these diseases in various cultures:
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cereals are treated with a fungicide once at the first manifestations of the disease, spending from 25 to 300 liters of the diluted preparation per hectare, depending on the type of plant and the method of processing;
- beets and corn are treated with a fungicide up to 3 times - prophylactically at the beginning of the growing season and twice in case of manifestations of the disease, the interval between spraying is from 2 to 3 weeks, about 300 liters of working solution are consumed per hectare.
Waiting time for cereals is 4 decades, for other crops - 5 decades. Terms of application of the drug for various diseases at different stages of the growing season of cereals.
To prepare the working solution, dilute 1 and 3/4 l of the drug in 300 l of pure water. It is produced in the form of a suspension emulsion. The volume of a plastic canister with a fungicide is 10 liters.
Hazard class and precautions
Abakus Ultra is considered a low-toxic fungicide and has a hazard class 3. It does not pose a threat to humans and animals, it is slightly dangerous to bees, which is why spraying bees during flowering and summer is prohibited.
Despite the low toxicity, when working with the drug, it is required to observe safety measures.
- Use personal protective equipment for the eyes and respiratory system.
- Prepare the drug only in clean containers.
- Do not keep them near food.
- Do not dispose of product residues with household waste.
If the drug accidentally comes into contact with the skin, wash it off with soapy water. In case of contact with eyes, rinse them for at least 15 minutes with clean water. If, if safety measures are not followed, particles of the drug get inside, you should drink activated charcoal and seek medical help.
Benefits of the drug
The fungicide has an AgCelenc effect: it protects and heals at the same time. The drug has advantages over long-used fungicides.
- Protects crops from almost all diseases caused by fungal pathogens.
- Optimizes plant vitality.
- It is an excellent anti-stress agent, increases the resistance of plants to any negative factors.
- Increases the efficiency of photosynthesis.
- Enhances the removal of nitrogen from the soil and its absorption by plants.
- Improves grain characteristics and sowing qualities.
- Increases yield and grain weight.
More information about the drug can be seen in the video:
Abakus Ultra is not cheap, but its use is quite justified, especially if the cultivated areas are large. The costs of the preparation are paid off by healthy plants throughout the growing season and an excellent harvest. The reviews of those who used it are extremely positive.
