Ojika Pyrazosulturon 10% WG
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Ojika Herbicide (Pyrazosulfuron Ethyl 10% WG) | Expert Sedge Control for Paddy
A premium Japanese technology brought to you by IFFCO-MC to keep your rice fields weed-free and productive.
Ojika is a specialized systemic herbicide designed for modern Indian rice farming. Developed through the powerful joint venture of IFFCO and Mitsubishi Corporation, it offers a smart alternative to expensive manual weeding. It specifically targets stubborn sedges (Motha) and broadleaf weeds in both transplanted and direct-seeded rice.
Best For: Farmers looking for a cost-effective, low-dose solution that is safe for the crop and leaves no harmful residue for the next season.
Why Choose This Product? Key Benefits
- ⏱️Drastic Labor Savings: One packet of Ojika replaces 10-15 laborers, saving you up to ₹5,000 per acre in weeding costs.
- ?️Maximum Crop Safety: It is highly selective, meaning it kills the weeds but is completely safe for your sensitive rice seedlings.
- ⏳Early Weed Termination: Stops weed competition within the first 3-7 days, protecting your yield when it matters most.
- ?️Safe for Next Crop: With a short soil half-life (~5.4 days), it degrades quickly, ensuring no damage to rotation crops like wheat or mustard.
- ?Sedge Specialist: Provides excellent control over tough weeds like Cyperus iria and Cyperus difformis that other herbicides miss.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Ojika (IFFCO-MC) |
| Technical Name | Pyrazosulfuron Ethyl 10% WG |
| IRAC MoA Code | Group 2 (ALS Inhibitor) |
| Chemical Group | Sulfonylurea |
| Formulation | Wettable Granules (WG) - Dust Free |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Ojika works by disrupting the internal "food factory" of the weed. It is absorbed through the roots and leaves, moving rapidly to the growing tips.
- Absorption: The herbicide is taken up by the weed's roots from the soil solution.
- Enzyme Block: It inhibits the ALS enzyme, which is responsible for creating essential amino acids (Valine, Leucine, Isoleucine).
- Starvation & Death: Without these proteins, cell division stops immediately. The weed turns yellow, stunts, and dies within 7-14 days.
Note: Rice plants naturally detoxify this chemical, which is why your crop stays healthy.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Paddy (Transplanted) | Sedges (Cyperus iria, Cyperus difformis) |
| Paddy (Direct Seeded - DSR) | Broadleaf Weeds (Ludwigia, Eclipta alba) |
| Paddy Nursery | Sedges and Semi-aquatic Broadleaves |
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) |
|---|---|---|---|---|
| Paddy (Rice) | 80 g | Or Mix with 8-10kg Sand | ~ 0.5 g | 90 - 95 Days |
| Nursery | 8 - 10 g / 1000 sqm | Broadcast with sand | - | - |
| DSR | 80 g | Spray (150L Water) | ~ 0.5 g | 90 - 95 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply strictly between 3 to 7 Days After Transplanting (DAT) for best results. For DSR, apply 5-10 days after sowing.
- Mixing (Sand Method): Mix the 80g packet with 8-10 kg of dry sand or fertilizer (like Urea). Broadcast evenly across the acre.
- Coverage: Maintain 3-5 cm of standing water in the field for at least 3-5 days after application. Do not drain or irrigate during this time.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Will Ojika damage my next crop (Wheat/Mustard)?
No. Ojika degrades rapidly in the soil. It is perfectly safe to plant sensitive rotational crops like wheat, mustard, or pulses after the rice harvest.
2. Does Ojika control grasses?
It is primarily for sedges and broadleaf weeds. For heavy grass infestation, it is recommended to use a grass-specific herbicide (like Pretilachlor) in combination or sequence.
3. Can I use it if the water has drained out?
Standing water is crucial for the "sand mix" method. If the field is just moist (no standing water), you must use a foliar spray with a Flat Fan nozzle.
4. What is the correct time to apply in Transplanted Rice?
The ideal window is 3 to 7 days after transplanting. Applying too late (after 15-20 days) will significantly reduce its effectiveness against established weeds.
5. Is the granule formulation better than powder?
Yes. The WG (Wettable Granule) formulation is dust-free, easier to measure, and disperses better in water, making it safer for the farmer to handle.
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.