Difenoconazole
Difenoconazole is a systemic triazole fungicide widely used in agriculture to control various fungal diseases. It offers protective, curative, and eradicative action against a broad spectrum of pathogens affecting fruits, vegetables, cereals, and ornamental plants. As a trusted solution for growers worldwide, Difenoconazole provides long-lasting protection while being environmentally responsible.
Product Specifications
Key Parameters
- Chemical Name: Difenoconazole
- CAS No: 119446-68-3
- Molecular Formula: C19H17Cl2N3O3
- Appearance: White to light brown powder
- Solubility: 15 mg/L in water at 20°C
- Melting Point: 76-78°C
- Stability: Stable under normal conditions
Technical Specifications
| Parameter | Specification |
|---|---|
| Purity | ≥95% |
| Moisture | ≤0.5% |
| Acidity (as H2SO4) | ≤0.3% |
| Insoluble Matter | ≤0.1% |
| Shelf Life | 2 years when properly stored |
FAQs About Difenoconazole
1. What crops can be treated with Difenoconazole?
Difenoconazole is effective on a wide range of crops including apples, pears, grapes, tomatoes, potatoes, cereals, rice, bananas, and various ornamental plants. It controls diseases like powdery mildew, rusts, leaf spots, scab, and many other fungal infections. Always check the product label for specific crop recommendations and local registration status.
2. How does Difenoconazole work against fungal diseases?
Difenoconazole works by inhibiting the biosynthesis of ergosterol, a crucial component of fungal cell membranes. This disruption prevents proper fungal growth and reproduction. The compound exhibits systemic action, moving within the plant tissues to protect new growth and provide long-lasting disease control. Its unique mode of action makes it effective against many fungi that have developed resistance to other fungicide classes.
3. What is the recommended application method for Difenoconazole?
Difenoconazole is typically applied as a foliar spray, with recommended application rates varying between 50-200 g/ha depending on the crop and disease pressure. Applications should be made preventatively or at the first signs of disease, with intervals of 7-14 days between treatments. Always follow label instructions regarding mixing, application timing, and pre-harvest intervals to ensure optimal results and safety.
Application Guidelines
| Crop | Target Disease | Dosage | Application Interval |
|---|---|---|---|
| Apples | Scab, Powdery mildew | 100-150 g/ha | 7-10 days |
| Grapes | Powdery mildew, Black rot | 80-120 g/ha | 10-14 days |
| Tomatoes | Early blight, Leaf spot | 75-100 g/ha | 7-10 days |
| Wheat | Rusts, Septoria | 125-150 g/ha | 14-21 days |
Safety and Handling
- Wear protective clothing, gloves, and eye protection during handling
- Avoid contact with skin and eyes
- Do not eat, drink, or smoke while handling the product
- Store in original container in a cool, dry place away from food and feed
- Dispose of empty containers according to local regulations
Benefits of Difenoconazole
- Broad-spectrum activity against multiple fungal pathogens
- Systemic action for comprehensive plant protection
- Long residual activity reducing application frequency
- Effective at relatively low use rates
- Compatible with many other pesticides when properly mixed
Environmental Considerations
Difenoconazole is classified as moderately toxic to aquatic organisms and bees. Avoid application near water bodies and during periods of active bee foraging. The compound has relatively low mobility in soil and degrades gradually under field conditions (half-life of 20-160 days depending on soil type and climate).
More FAQs About Difenoconazole
4. Can Difenoconazole be mixed with other pesticides?
Yes, Difenoconazole is compatible with many other fungicides, insecticides, and foliar fertilizers. However, always conduct a jar test before large-scale mixing to check for compatibility. Avoid mixing with strongly alkaline products and consult the product label for specific restrictions. Combining Difenoconazole with protectant fungicides can enhance disease control and resistance management.
5. What is the re-entry period after Difenoconazole application?
The re-entry period typically ranges from 12 to 48 hours after application, depending on the formulation, application rate, and local regulations. Workers should not enter treated areas until sprays have dried completely. Always check the product label for specific re-entry requirements in your region, as these may vary based on regulatory approvals.
6. How should Difenoconazole be stored?
Store Difenoconazole in its original container, tightly closed, in a cool, dry, well-ventilated area away from direct sunlight. Keep away from food, feed, and drinking water sources. The optimal storage temperature is between 5°C and 35°C. Protect from freezing as this may affect product quality. Keep away from children and unauthorized personnel.