Spirodiclofen

Appearance white powder, no special odor, melting point: 94.8℃ , vapor pressure 3×10-7Pa at 20℃ , density 1.29g/cm3 at 20℃ . solubility (substance/1000ml solvent, 20℃ ): 20 in hexane, >250 in methylene chloride, 47 in isopropyl alcohol, >250 in xylene, 0.05 in water.

It mainly inhibits the fat synthesis of mites, blocks the energy metabolism of mites, and has a good killing effect on the eggs, young mites and nymphs of harmful mites, but has no effect on adult mites, but has the effect of inhibiting the hatching rate of female mites.

Spirodiclofen is a selective acaricide belonging to the keto-enol group, widely used for controlling mites in agricultural crops. Known for its excellent efficacy and long-lasting action, Spirodiclofen is particularly effective against various life stages of mites, including eggs, nymphs, and adults. Its specificity to mite control makes it a valuable tool in integrated pest management (IPM) programs.

Key Features

1. Selective Action: Targets mites without significantly affecting beneficial insects.

2. Broad-Spectrum Acaricide: Controls multiple mite species, including spider mites, rust mites, and red mites.

3. Residual Efficacy: Provides extended protection after application.

4. Compatibility: Can be integrated into IPM programs and used alongside other pest control measures.

Applications

Target Pests

• Spider mites (Tetranychus spp.)

• Rust mites

• Red mites

• Other phytophagous mites

Usage Areas

• Fruits: Citrus, apples, pears, and stone fruits.

• Vegetables: Tomatoes, cucumbers, and peppers.

• Ornamental Plants: Roses and other flowering plants.

Application Methods

• Foliar Spray: Direct application to plant surfaces for effective mite control.

Mode of Action

Spirodiclofen inhibits lipid biosynthesis in mites, disrupting their energy metabolism and reproduction. It is active against all life stages of mites, ensuring comprehensive pest control.

Advantages

1. High Specificity: Targets mites with minimal impact on non-target organisms.

2. Long-Lasting Protection: Reduces the frequency of applications.

3. Egg and Larvae Control: Prevents mite population build-up by targeting early life stages.

4. Resistance Management: Effective in rotation programs to delay resistance development.

Safety and Environmental Considerations

Handling and Storage

• Use personal protective equipment (PPE) during handling and application.

• Store in a cool, dry place, away from food, water, and incompatible substances.

Environmental Impact

• Aquatic Toxicity: Harmful to fish and aquatic organisms; avoid contamination of water sources.

• Pollinator Safety: Relatively safe for bees when used according to guidelines.

Human Health Risks

• Low acute toxicity to humans; however, prolonged exposure may cause irritation.

• Follow label instructions and safety precautions to minimize risks.

Limitations

1. Narrow Spectrum: Primarily effective against mites, limiting its use for other pests.

2. Resistance Risk: Overuse can lead to resistance in mite populations.

3. Environmental Concerns: Requires careful management to prevent runoff and contamination.

Conclusion

Spirodiclofen is an effective acaricide for managing mite infestations in various crops. Its selective action, long-lasting efficacy, and compatibility with IPM programs make it a valuable tool for sustainable agriculture. Adherence to recommended application practices ensures optimal results while minimizing risks to the environment and non-target organisms.