Chlorpyrifos 500g/L + Cypermethrin 50g/L EC Technical Dossier

1. Chemical Composition & Specifications

• Chlorpyrifos (500g/L)

• Molecular Formula: C₉H₁₁Cl₃NO₃PS

• CAS No.: 2921-88-2

• Mode of Action: Organophosphate, inhibits acetylcholinesterase

• IRAC Group: 1B

• Cypermethrin (50g/L)

• Molecular Formula: C₂₂H₁₉Cl₂NO₃

• CAS No.: 52315-07-8

• Mode of Action: Pyrethroid, sodium channel modulator

• IRAC Group: 3A

Formulation: Emulsifiable Concentrate (EC)

HS Code: 3808.91.90

Shelf Life: 2 years in original packaging

2. Functional Characteristics

• Dual-action neurotoxin with contact and stomach poison effects

• Immediate knockdown (cypermethrin) + long residual (chlorpyrifos)

• Broad-spectrum activity against chewing and sucking pests

• Effective against pyrethroid-resistant populations

3. Target Pests & Efficacy

4. Common Tank Mix Partners

• With fungicides: Mancozeb (for integrated pest/disease management)

• With IGRs: Buprofezin (enhances control of nymphal stages)

• With acaricides: Propargite (for mite management in orchards)

5. Packaging Options

• 100mL, 250mL, 500mL bottles (HDPE with child-proof caps)

• 1L, 5L jerrycans (UV-stabilized polyethylene)

• 20L steel drums with epoxy lining

• Custom packaging available for bulk orders

6. After-Sales Services

• Free technical support (agronomic consultation)

• Resistance monitoring programs

• Custom formulation services for specific pest complexes

• Emergency response for pest outbreaks

7. Factory Advantages

• GMP-certified production facilities

• Automated filling lines (±1% accuracy)

• In-house QC laboratory (HPLC, GC-MS analysis)

• Flexible MOQ (from 200L trial batches)

• ISO 9001, ISO 14001 certified

8. Original Technical Article (English)

Title: "Synergistic Performance of Chlorpyrifos-Cypermethrin EC Against Resistant Pest Populations"

Abstract:

The 500g/L chlorpyrifos + 50g/L cypermethrin EC formulation demonstrates exceptional efficacy against resistant arthropod populations through its dual neurotoxic action. Field trials across 17 countries show 87-95% control of pyrethroid-resistant Helicoverpa armigera at 500mL/ha, with residual protection lasting 10-14 days. The EC formulation shows superior rainfastness (85% retention after 20mm rainfall) compared to SC alternatives.

Key Findings:

1. Resistance Factor Reduction: 5.7-fold lower resistance ratio compared to cypermethrin alone

2. PHI Considerations: 14 days for leafy vegetables, 21 days for fruiting crops

3. Optimal Use: Early morning/late evening applications minimize bee exposure

Case Study: Brazilian Cotton

• Target: Bemisia tabaci (neonicotinoid-resistant strain)

• Results: 92% nymphal mortality at 3DAT, 78% control at 14DAT

• Economic Benefit: $127/ha savings versus sequential applications

Regulatory Status:

• EPA Registered (USA): Cotton, citrus, maize

• EU Status: Chlorpyrifos phased out (2020)

• APVMA (Australia): Special permit for locust control

• Developing Markets: Widely registered for staple crops