Oxathiapiprolin
| Parameter | Specification |
|---|---|
| Chemical Name | Oxathiapiprolin |
| CAS Number | 1003318-67-9 |
| Molecular Formula | C14H15NO3S2 |
| Molecular Weight | 309.41 g/mol |
| Appearance | White to off-white crystalline powder |
| Melting Point | 120-122°C |
| Solubility | Water: 0.36 mg/L (20°C) |
| Stability | Stable under normal conditions |
Key Features of Oxathiapiprolin
- Highly effective against oomycete pathogens
- Excellent systemic and translaminar activity
- Long-lasting residual control
- Low application rates required
- Compatible with integrated pest management programs
- Low risk of resistance development
Oxathiapiprolin Application Guide
| Crop | Target Disease | Application Rate | Application Interval |
|---|---|---|---|
| Grapes | Downy mildew | 50-75 g/ha | 7-14 days |
| Potatoes | Late blight | 75-100 g/ha | 7-10 days |
| Tomatoes | Late blight | 50-75 g/ha | 7-14 days |
| Cucurbits | Downy mildew | 50-75 g/ha | 7-10 days |
Oxathiapiprolin FAQ Section 1
Q: What is the mode of action of Oxathiapiprolin?
A: Oxathiapiprolin is a piperidinyl thiazole isoxazoline fungicide that targets the oxysterol binding protein (OSBP) in oomycete pathogens. It disrupts cellular processes by inhibiting vesicular trafficking and lipid signaling, leading to inhibition of mycelial growth and spore formation.
Q: How long does Oxathiapiprolin remain effective after application?
A: Oxathiapiprolin provides long-lasting protection, typically remaining effective for 7-14 days depending on environmental conditions and disease pressure. Its unique chemistry allows for excellent rainfastness and residual activity on plant surfaces.
Safety and Handling Information
- Always wear protective clothing, gloves, and eye protection when handling
- Store in original container in a cool, dry place away from food and feed
- Keep out of reach of children and animals
- Dispose of empty containers according to local regulations
- Do not contaminate water sources with product or used containers
Oxathiapiprolin FAQ Section 2
Q: Can Oxathiapiprolin be mixed with other pesticides?
A: Yes, Oxathiapiprolin is compatible with most commonly used fungicides, insecticides, and foliar fertilizers. However, it's always recommended to conduct a jar test before large-scale mixing. Some products containing copper or high-pH solutions may require special attention.
Q: What is the re-entry interval (REI) after applying Oxathiapiprolin?
A: The standard re-entry interval for Oxathiapiprolin is 12 hours for most formulations. Always check the product label for specific recommendations as formulations may vary, and local regulations may require different intervals.
Environmental Considerations
| Aspect | Rating | Notes |
|---|---|---|
| Bee toxicity | Low | Not considered hazardous to bees |
| Soil persistence | Medium | DT50: 30-60 days |
| Water solubility | Low | 0.36 mg/L at 20°C |
| Leaching potential | Low | Koc: 1500-2000 |
Oxathiapiprolin FAQ Section 3
Q: What crops is Oxathiapiprolin registered for use on?
A: Oxathiapiprolin is registered for use on various crops including grapes, potatoes, tomatoes, cucurbits, leafy vegetables, and some ornamental plants. Registration status varies by country, so always check local regulations and product labels for approved uses in your area.
Q: How should Oxathiapiprolin be applied for best results?
A: For optimal results, apply Oxathiapiprolin preventively or at the first signs of disease. Use sufficient water volume (minimum 200 L/ha for ground applications) to ensure thorough coverage. Applications should be made with proper equipment calibration and nozzle selection to achieve fine to medium spray droplets.