Sumet Pro Herbicide (Metsulfuron Methyl + Chlorimuron Ethyl)
The "Har Din Sasta" Solution for Total Weed Control in Rice
Sumet Pro by FMC is a powerful, low-dose herbicide designed specifically for Rice farmers. It targets the most stubborn broadleaf weeds and sedges that other products miss. By combining two active ingredients, it stops weeds from competing for sunlight and nutrients, preventing yield losses that can range from 20% to 80%.
Best For: Farmers looking for a cost-effective (approx. ₹115/acre) solution to clean up their paddy fields without hurting the crop.
Why Choose This Product? Key Benefits
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Perfect Timing Window: Apply between 15 to 25 days after transplanting for maximum impact.
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100% Crop Safe: Rice plants naturally break down the chemical, ensuring your crop stays healthy while weeds die.
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Root-Deep Action: Systemic power travels to the roots, killing weeds completely and preventing regrowth.
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Weather Resistant: Becomes rainfast in just 4 to 6 hours, giving you peace of mind during the monsoon.
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Dual Power Formula: Contains two actives (Metsulfuron + Chlorimuron) to handle difficult Sedges and Broadleaves.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Sumet Pro |
| Technical Name | Metsulfuron Methyl 10% + Chlorimuron Ethyl 10% WP |
| IRAC MoA Code | Group 2 (ALS Inhibitors) |
| Chemical Group | Sulfonylurea |
| Formulation | Wettable Powder (WP) |
| Toxicity Label | Category III / IV (Blue/Green - Caution) |
How It Works: Mode of Action
Sumet Pro works by "starving" the weed from the inside out. It targets a specific enzyme called ALS, which plants need to make proteins.
- Absorption: The powder is absorbed through both leaves and roots, entering the weed's system.
- Stoppage: Within hours, the weed stops producing essential amino acids. Growth halts immediately.
- Elimination: Over 14-21 days, the weed turns yellow, withers, and dies completely.
Note: You might not see the weeds die instantly, but they stop stealing nutrients from your crop within the first day.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Transplanted Rice | Sedges (Cyperus iria, C. difformis), Broadleaf Weeds (Eclipta alba, Marsilea quadrifolia) |
| Direct Seeded Rice (DSR) | Annual Sedges, Fimbristylis, and Broadleaf Weeds |
| Paddy (General) | Monochoria vaginalis (Pondweed), Ludwigia spp. |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (g / Acre) | Water (L / Acre) | Dose (g / Litre) | PHI (Days) |
|---|---|---|---|---|
| Rice (Transplanted) | 8 g | 120 - 150 L | ~0.06 g/L | 60* |
| Rice (DSR) | 8 g | 120 - 150 L | ~0.06 g/L | 60* |
| Tank Mix (with Insecticide) | 8 g | 150 L | ~0.05 g/L | 60* |
*PHI = Pre-Harvest Interval. Always verify PHI and Plant Back Intervals on the official packet label before harvesting or planting the next crop.
How to Apply: Best Practices
- Timing: Apply when weeds are at the 2-4 leaf stage (typically 15-25 days after transplanting).
- Mixing: Dissolve the 8g packet in a small mug of water first to create a solution, then pour it into the main spray tank.
- Coverage: Drain the standing water from the field before spraying to expose the weeds. Re-flood the field after 48-72 hours.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Does Sumet Pro control grasses like Barnyard grass?
No. Sumet Pro is specialized for Broadleaf weeds and Sedges. For grasses, you must tank-mix it with a grass-killer or use a different herbicide.
2. Can I plant Maize or Mustard after using this?
Caution is advised. Maize and Mustard are sensitive to this chemical. It is safer to rotate with Wheat, which is tolerant. Always check the soil pH and Plant Back Interval (PBI).
3. Can I mix Sumet Pro with insecticides?
Yes, it is generally compatible with insecticides like Fipronil or Chlorpyrifos for simultaneous pest and weed control.
4. What if it rains after spraying?
Sumet Pro requires 4 to 6 hours of rain-free weather to be absorbed by the plant. If it rains immediately, efficacy may drop.
5. How much does it cost per acre?
Sumet Pro is very affordable, costing approximately ₹115 per acre (prices may vary by region), making it much cheaper than manual weeding.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application.
