Pyraclostrobin is a high-efficiency, broad-spectrum strobilurin fungicide engineered for the protection of seed grasses and essential food crops. As a potent mitochondrial cytochrome-bc1 complex inhibitor, it provides superior control against major plant pathogens, including Septoria tritici, Puccinia spp., and Pyrenophora teres, ensuring robust crop health and stability.
Beyond its direct antifungal properties, Pyraclostrobin is renowned for its "greening effect," which delays leaf senescence and extends the grain-filling period. By priming the plant's natural defense systems, it enhances resistance to both biotic threats—such as viruses and bacteria—and abiotic stresses like drought, ultimately leading to significant increases in biomass and overall crop yield.
Detailed Parameters
| CAS No. | 175013-18-0 | Molecular Formula | C19H18ClN3O4 |
|---|---|---|---|
| Molecular Weight | 387.82 | Form | Solid (Off-white to light yellow) |
| Melting Point | 63.7-65.2°C | Boiling Point | 501.1±60.0 °C (Predicted) |
| Density | 1.27±0.1 g/cm3 (Predicted) | Solubility | DMSO: 250 mg/mL (644.63 mM) |
| Storage Temp. | 0-6°C | pKa | -0.23±0.10 (Predicted) |
Key Advantages
Broad Spectrum Control
Highly effective against a wide range of fungal pathogens, including rusts and leaf spots, protecting diverse crop varieties.
Greening Effect
Delays leaf senescence and prolongs the grain-filling period, maximizing the photosynthetic efficiency of the plant.
Yield Enhancement
Proven to increase overall biomass and final crop yield through improved plant health and nutrient utilization.
Defense Priming
Boosts the plant's own antimicrobial PR-1 proteins, preparing it for faster responses to subsequent infections.
Abiotic Stress Relief
Provides integrated protection that helps crops better withstand environmental pressures, including drought conditions.
Versatile Formulations
Available in multiple concentrations and blends (SC, EC, WG, EW) to suit specific application needs.
Product Gallery
Management Platforms
Pure Grade Supply
Providing high-purity Pyraclostrobin technical material for custom formulation and industrial use.
Optimized Blending
Expert mixing with active ingredients like Tebuconazole or Penconazole for synergistic effects.
Quality Assurance
Strict adherence to international chemical standards and precise molecular weight verification.
Logistics Control
Cold-chain storage (0-6°C) and specialized transport to maintain chemical stability.
Formulation Variety
Offering SC, EC, WG, and FS delivery systems for maximum efficacy in the field.
Technical Support
Comprehensive guidelines on dosage, application timing, and crop-specific guidelines.
Investment Return Comparison
| Metric | Standard Fungicides | Pyraclostrobin Solution |
|---|---|---|
| Disease Control | Reactive / Basic | Preventative & Curative |
| Crop Appearance | Standard | Enhanced Greening Effect |
| Stress Tolerance | Low to Medium | High (Drought Priming) |
| Biomass Yield | Baseline | Significant Increase |
| Protection Duration | Short Term | Extended Residual Effect |
Frequently Asked Questions
Pyraclostrobin not only inhibits fungal growth via the cytochrome-bc1 complex but also induces a "greening effect" and primes the plant's own immune system for better stress resistance.
The greening effect delays leaf senescence and extends the grain-filling period, which directly leads to increased biomass and higher overall crop yields.
We offer a variety of formulations including SC (Suspension Concentrate), EC (Emulsifiable Concentrate), WG (Water Dispersible Granules), and EW (Emulsion in Water).
While primarily a fungicide, research shows it primes plants for more rapid accumulation of PR-1 defense proteins, enhancing resistance to pathogens like the Tobacco mosaic virus.
To maintain maximum potency and stability, Pyraclostrobin should be stored in a cool environment, ideally between 0-6°C.
Yes, field studies indicate that Pyraclostrobin-induced priming is associated with enhanced resistance to abiotic stresses, including drought.
