1. Product Overview & Specifications

Iodosulfuron Methyl Sodium (CAS 144550-36-7) is a sulfonylurea herbicide widely used for post-emergence control of broadleaf weeds in cereal crops. Below are its key technical parameters:

Advantages: Higher selectivity, lower application rates (4-10 g/ha), and reduced environmental persistence compared to analogs.

2. Key Applications & Uses

Iodosulfuron Methyl Sodium is primarily utilized for:

• Crop Protection: Controls weeds like Galium aparine, Matricaria spp., and Veronica spp. in wheat, barley, and rye.
• Synergistic Formulations: Often combined with mesosulfuron for enhanced efficacy against resistant weed biotypes.
• Soil & Environmental Compatibility: Rapid degradation (DT₅₀ 3-7 days) minimizes groundwater contamination risks.

3. Usage Guidelines

1. Application Timing: Apply at weed growth stages BBCH 12-32 for optimal absorption.
2. Dosage: 5-7.5 g/ha in 200-300 L water/ha. Adjust based on weed density.
3. Mixing Protocol: Add adjuvant (0.1% v/v) to improve foliar penetration.
4. Post-Application: Avoid irrigation for 6 hours post-spraying.

Safety: Use PPE (gloves, goggles) during handling. PHI = 60 days.

4. Case Studies

Case 1: Wheat Farm in Shandong, China

• Problem: Resistance in Alopecurus myosuroides reduced yields by 40%.
• Solution: Applied Iodosulfuron Methyl Sodium (6 g/ha) + safener mefenpyr-diethyl.
• Result: 92% weed control; yield increased from 3.8 to 6.2 t/ha.

Case 2: Cooperative Farm in Punjab, India

• Challenge: Broad-spectrum weed infestation in barley.
• Protocol: Sequential application at BBCH 14 and 25.
• Outcome: 87% efficacy with no phytotoxicity observed.

5. Inquiry & Contact

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