Spiromesifen
Spiromesifen is an innovative insecticide/acaricide that provides effective control against various pests in agricultural applications. This technical product offers unique benefits for crop protection with its distinctive mode of action.
Product Specifications
- Chemical Name: 3-mesityl-2-oxo-1-oxaspiro[4.4]non-3-en-4-yl 3,3-dimethylbutanoate
- CAS Number: 283594-90-1
- Molecular Formula: C23H30O4
- Molecular Weight: 370.48 g/mol
- Appearance: White to beige powder
- Melting Point: 94.5°C
- Vapor Pressure: 1.1×10-6 Pa (25°C)
- Solubility: Water 0.05 mg/L (20°C)
- Stability: Stable under normal temperatures and pressures
Technical Parameters
| Parameter | Value |
|---|---|
| Formulation Type | Suspension Concentrate (SC) |
| Active Ingredient Content | 240 g/L |
| pH Range | 6.0-8.0 |
| Flash Point | >100°C |
| Shelf Life | 2 years from date of manufacture |
FAQ Section
1. What crops is Spiromesifen effective for?
Spiromesifen has shown excellent performance in controlling whiteflies, spider mites, and other sucking pests in various crops including cotton, vegetables, ornamentals, and fruits. It's particularly effective in tomato, cucumber, and pepper cultivation.
2. What is the recommended application rate for Spiromesifen?
The standard application rate varies between 0.2-0.4 L/ha depending on the target pest and crop. For whitefly control in vegetables, we recommend 0.3 L/ha with thorough coverage of both leaf surfaces.
3. How does Spiromesifen differ from other acaricides?
Spiromesifen belongs to the chemical class of tetronic acid derivatives and acts as a lipid biosynthesis inhibitor. Its unique mode of action makes it effective against populations resistant to other chemical classes, providing excellent control of all developmental stages including eggs.
Application Guidelines
For optimal results with Spiromesifen, apply when pest populations are building but before they reach damaging levels. The product works best as a foliar spray with complete coverage. Repeat applications may be necessary at 7-10 day intervals depending on pest pressure.
Environmental and Safety Information
- LD50 Oral (rat): >2000 mg/kg
- LD50 Dermal (rabbit): >2000 mg/kg
- Ecotoxicity: Toxic to aquatic organisms
- Re-entry Interval: 12 hours
- Pre-harvest Interval: 3 days (varies by crop)
Spiromesifen provides growers with an effective tool for integrated pest management programs. Its unique chemistry offers rotation benefits with other insecticide classes to help prevent resistance development.