What are the effects and hazards of tebuconazole overdose on wheat?
Core content of this article: knowledge about the effects and hazards of tebuconazole overdose on wheat in the field of green plants and flowers. The following is an introduction by the editor.
What are the effects and hazards of tebuconazole overdose on wheat?
Tebuconazole is not suitable for use at any time. Although tebuconazole is effective, it has a certain controlling effect on plant growth, so it is not recommended for use in the seedling stage. The commonly used compound products include tebuconazole•prochloraz for the control of wheat scab, cyflufenamid•tebuconazole for the control of wheat rust, and tebuconazole•pyraclostrobin for the control of apple brown spot, etc.
The effect of tebuconazole on wheat
Tebuconazole belongs to the triazole fungicides, which share a common characteristic: improper use can easily cause phytotoxicity.
However, the advantages of this type of fungicide are also significant, leading some people to overlook its disadvantages. These fungicides have a broad-spectrum, prominent effects, and strong systemic and fumigant actions. They also have three major functions: protection, treatment, and eradication. Although tebuconazole is effective, it has a certain controlling effect on plant growth, so it is not recommended for use in the seedling stage.
The commonly used compound products include tebuconazole•prochloraz for the control of wheat scab, cyflufenamid•tebuconazole for the control of wheat rust, and tebuconazole•pyraclostrobin for the control of apple brown spot, etc. Tebuconazole alone is also effective and can be used to control rust, powdery mildew, net spot disease, root rot, and mold diseases in wheat and other crops. It can also control peanut brown spot, brown leaf spot, grape gray mold, powdery mildew, banana leaf spot, and tea tree tea cake disease, etc.
The fungicidal characteristic of tebuconazole is that after application, it is transmitted to the top of the wheat plant, killing internal pathogens and promoting growth, increasing the number of effective tillers. It can effectively prevent powdery mildew, scab, leaf spot in peanuts, and sheath blight in rice, etc.
What are the effects of excessive use of tebuconazole on wheat?
Tebuconazole is a suitable fungicide for the control of wheat scab, and the general dosage is 12-16 grams per mu. An insufficient dosage cannot ensure effective control.
In cases of excessive dosage, high concentration of the drug, or encountering strong cooling and low temperatures shortly after application, wheat growth can be excessively inhibited.
According to relevant information, when the temperature is above 20°C, 20-30 grams of 43% tebuconazole can be used per mu; when the temperature is below 15°C or lower, 10-15 grams of 43% tebuconazole can be used per mu. Excessive drug use or application before a strong cooling can cause phytotoxicity to wheat, even affecting flowering and pollination, leading to difficulties in heading and poor seed setting. Therefore, tebuconazole mixtures are often chosen in production to control scab, reducing the risk of phytotoxicity to wheat.
Methods for applying tebuconazole to wheat
The first application can be sprayed during the period from wheat jointing to elongation. In addition to preventing pests and diseases, it can also resist lodging and increase the number of effective spikes.
Specific formula: It is recommended for farmers to choose imidacloprid, bifenthrin, propiconazole, pyraclostrobin, brassinolide, and potassium dihydrogen phosphate.
The second application should be used during the filling stage, which can not only kill pests and fungi but also resist dry heat winds and increase thousand-grain weight.
Specific formula: Chlorpyrifos•thiamethoxam, diazinon, propiconazole, pyraclostrobin, brassinolide, and potassium dihydrogen phosphate.
If you want to specifically control scab, you can replace pyraclostrobin with tebuconazole for better results!
The above is a comprehensive explanation of the effects and hazards of tebuconazole overdose on wheat. I hope it can serve as a starting point to solve your green plant problems.