Pyraclostrobin--highly selective and safe fungicide

Pyraclostrobin stands among the most reliable strobilurin fungicides available in crop protection today. When paired with tebuconazole in a dual-mode formulation—commonly referred to as pyraclostrobin tebuconazol—it delivers both preventive and curative disease control across a remarkably wide crop spectrum. The combination targets mitochondrial respiration and ergosterol biosynthesis simultaneously, which makes it a strategically sound choice for distributors, OEM brand owners, and large-scale farm operators seeking durable, resistance-aware protection programs.

Understanding Pyraclostrobin and Its Role in Crop Protection

Pyraclostrobin is a strobilurin drug, and it works by stopping Complex III in the electron transport chain in the mitochondria of fungi. This stops cells from making energy, which stops the spread of spores and mycelium before any obvious symptoms show up. The unique thing about pyraclostrobin is that it works against a lot of different types of fungi. It can kill ascomycetes, basidiomycetes, oomycetes, and deuteromycetes, which means it can kill diseases like powdery mildew, rust, downy mildew, net blotch, rice blast, and gray leaf spot.

Crop Safety Profile

Pyraclostrobin is known to have a good selection characteristic across crops that are economically important. As long as the recommended application rates are followed, the active ingredient is suitable for use on rice, grapes, potatoes, vegetables, and fruit trees. Peer-reviewed studies have also shown that there is a "green effect"—treated crops keep their photosynthetic efficiency longer by lowering ethylene production. This is linked to later senescence and measurable yield increases when disease pressure is mild.

Environmental and Regulatory Standing

The Hontai Tebuconazole 250 g/l SC is made in Hebei, China, and has a purity level of 25% and a CAS number of 131860-33-8. The formula looks like a milk-white liquid that dissolves in water and meets the standard CIPAC suspensibility and wet-sieve criteria. There is regulatory information, such as GLP-compliant effectiveness data, that can help buyers in big markets meet their registration standards.

Comparing Pyraclostrobin Tebuconazol to Other Fungicide Options

People who work in procurement often compare pyraclostrobin tebuconazol to single-mode alternatives like copper fungicides, mancozeb-based protectants, or stand-alone triazoles. When there is moderate to high disease pressure, multiple application rounds, or known resistance issues, the comparison always favors the dual-mode premix.

Here are the core performance differentiators that make this premix compelling for B2B buyers:

• Broader disease control per application: One spray of pyraclostrobin tebuconazol can target multiple types of fungi at once, which cuts down on the number of times it needs to be used. In tests on Brazilian soybeans, dual-mode QoI+DMI premixes showed 85-72% control of Asian soybean rust, compared to 65%-75% control with propiconazole alone in the same settings. Superior rainfastness: Pyraclostrobin's lipophilic chemistry quickly sticks to the leaf wax layer. In humid and subtropical areas, a good SC or EC formulation becomes rainproof within one to two hours of application. This is a big benefit over contact fungicides that dissolve in water.
• Reduced total active ingredient load: The synergistic interaction between strobilurin and triazole parts often means that lower combined doses are needed to get the same level of effectiveness. This means that the product costs less per hectare and leaves a lower total residue level. These benefits can directly help with problems that regional distributors and plantation managers often have, like formulation washout, inconsistent batch performance, and the high cost of using multiple single-mode applications on a large area of land. Contact fungicides with only one ingredient just can't handle this wide of a range of uses.

Application Best Practices for Maximum Efficacy

It is just as important to use pyraclostrobin tebuconazol properly as it is to choose it. The formula can be sprayed on stems and leaves, used to treat seeds, or mixed into the soil. This gives agronomists and buying managers real freedom across all stages of crop growth.

Dosage and Timing Guidelines

The best return is seen in preventative uses. Apply before pathogens become a problem, either when crops start to grow or when the canopy starts to close. For healing purposes, the triazole part's movement through the xylem stops infections before they can spread to new tissue. Foliar application rates usually run from 0.5 to 1.0 L/ha, but this depends on the type of crop and how bad the disease is. Always check the label for the listed market to make sure the rates are correct.

Mixing and Equipment Considerations

If you mix strongly alkaline substances like the Bordeaux mixture, the formulation colloid could become unstable because the pH levels don't match up. A jar test must still be done before any new tank-mix combination can be used. Use flat-fan nozzles that are set up to cover the whole top evenly. This is especially important for crops with lots of leaves, like grapes and potatoes, where fungus inoculum tends to gather in the shade.

Operator Safety and Storage

The item should be kept out of direct sunshine and at temperatures between 0°C and 35°C. When mixing and packing pyraclostrobin tebuconazol, operators should use appropriate handling equipment. Hontai's custom packing choices, such as anti-UV barrier containers, help keep the formulation's purity throughout the supply chain. This is especially important for wholesalers who store goods in tropical environments.

Procuring Pyraclostrobin Tebuconazol: A Buyer's Guide

To get a dual-mode fungicide on a large scale for commercial use, you need more than just a good price. You also need a lot of documentation, a reliable supply chain, and a manufacturing partner who can match formulation specifications to regional registration requirements. Hontai is based in Shijiazhuang, which is in Hebei Province. It is a single company that does production, research and development, and sale. Since it started in May 2021, the company has worked with farmers in Southeast Asia, Latin America, Africa, the CIS, and the Middle East.

Key procurement parameters buyers should confirm before placing bulk orders:

• Active ingredient purity: Tebuconazole 250 g/l SC comes in two purity levels: 25% and 43%. Each batch comes with a proof of analysis.
• Formulation types available: TC, EC, SC, and SP formats, which let buyers register more than one dosage form under the same brand.
• Minimum order volumes: Formulated fungicides ship in lots of 3–15 tons, TC in lots of 1–3 tons, and premix combination products in lots of 2–8 tons.
• Payment terms: Standard T/T; L/C for large buyers; 60-day credit for established dealers.

OEM clients can ask for first-order samples, which can be 200 g to 1 kg TC for testing in the lab or 2–5 kg of formulated product for trials in the greenhouse and field. Hontai offers help with designing bioefficacy trials and GLP paperwork packages, which significantly cuts down on the time needed to get ready for registration.

Resistance Management and Long-Term Crop Protection Strategy

Key pathogens, like Zymoseptoria tritici in wheat and Phakopsora pachyrhizi in soybean, are becoming more and more resistant to strobilurin in the field. This is a known problem that is becoming a bigger problem around the world. Putting together active ingredients from Groups 11 and 3 is a smart move because it targets two separate metabolism pathways. A germ with the G143A point mutation that makes it resistant to strobilurin can still be killed by the triazole partner. This stops the pressure of single selection from making resistance more common across sprayed populations. Structured shifting plans can be used with Hontai's portfolio. The company has a library of many active ingredients, including mancozeb-based protectants, copper fungicides, triazoles, strobilurins, and biological agents. This library lets procurement managers create full resistance cycle calendars with just one provider. This unified method keeps products lasting longer and gives dealers a unique consulting service to offer their agro-dealer networks.

Conclusion

When mixed with tebuconazole, pyraclostrobin tebuconazol offers a level of disease control flexibility that not many single-mode fungicides can match. It works in two molecular ways, is suitable for crops, and can be used in spray, seed treatment, and soil application methods. These factors make it an ideal choice for any serious crop protection program. It is easy to see the technical and business case for distributors who want to build resistance rotation portfolios, OEM brands that want stable premix formulations, or large farm operators who need to control disease across a lot of land. Hontai's licensed and quality-checked supply makes this active ingredient available at a good bulk price with all the necessary paperwork.

FAQ

1. Why choose a premix over tank-mixing pyraclostrobin and tebuconazole separately?

Factory-level compatibility testing is done on premixes to make sure that the surfactant system, particle size distribution, and colloid stability are all at their best for both active ingredients at the same time. Tank-mixing separately adds variation, including potential flocculation, surfactant antagonism, and uneven coverage, which are not present in a validated premix formulation.

2. What crops are confirmed safe for this fungicide?

At the suggested application rates, rice, grapes, potatoes, veggies, and fruit trees have all been shown to be suitable crops. Tebuconazole can temporarily affect the growth of sensitive plants if it is sprayed during flowering at high temperatures; always use the amounts recommended on the label.

3. What is the lead time for bulk orders?

Depending on the size of the order and the port of destination, standard production and shipping lead times from Hebei are 15 to 25 days after the deposit is confirmed. Institutional buyers who are in charge of responding to outbreaks can make emergency supply plans.

4. Does Hontai offer registration documentation support?

In controlled markets, yes. Hontai offers GLP-compliant efficacy data packages, pathogen sensitivity panels, formulation stability data, and multilingual label templates to help buyers register their products.

Partner With Hontai—Trusted Pyraclostrobin Tebuconazol Supplier

From Hebei, China, Hontai Biotech ships high-quality pyraclostrobin tebuconazol to customers all over the world. They offer full GLP paperwork, special OEM formulation support, and fast global shipping. Our team is ready to customize a supply plan based on the needs of your market, whether you need bulk SC formulations, high-purity TC, or co-developed premix products. To get samples or a business price right away, email us at admin@hontai-biotech.com.

References

1. Bartlett, D. W., Clough, J. M., Godwin, J. R., Hall, A. A., Hamer, M., & Parr-Dobrzanski, B. — Pest Management Science, 2002.

2. Fungicide Resistance Action Committee (FRAC) — FRAC Code List: Fungicides Sorted by Mode of Action, 2023.

3. Embrapa Soja—Asian Soybean Rust Management with Strobilurin-Triazole Mixtures, 2019.

4. Mueller, D. S., Bradley, C. A., & Chilvers, M. I. — Plant Disease, 2009.

5. Russell, P. E. — Pesticide Outlook: A History of Chemical Control of Fungal Diseases, Royal Society of Chemistry, 2005.

6. Sierotzki, H., & Scalliet, G. — Phytopathology, 2013.