Officer-Pyrazosulfuron Ethyl 15% Wdg+ Bispyribac 20%
Officer (Pyrazosulfuron Ethyl 15% WDG + Bispyribac 20%) from Coromandel International is a selective herbicide designed for effective post-emergence weed control in rice fields, ensuring cleaner crops and improved productivity.
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Officer Herbicide (Bispyribac Sodium 20% + Pyrazosulfuron Ethyl 15% WDG)
The Ultimate "One-Shot" Weed Solution for Transplanted & Direct-Seeded Rice.
Officer Herbicide is a premium, broad-spectrum weed control solution designed for modern rice farming. By combining two powerful active ingredients, it eliminates the need for multiple sprays. It effectively targets complex weed flora—including stubborn grasses, sedges (Motha), and broadleaf weeds—in a single application while remaining safe for your crop.
Best For: Rice farmers seeking total weed control during the critical 15-25 day window.
Why Choose This Product? Key Benefits
- ⏱️Double Action Power: Controls Grasses, Sedges, and Broadleaves simultaneously, saving labor and chemical costs.
- ?️Superior Crop Safety: The advanced WDG (Water Dispersible Granule) formulation is solvent-free, preventing leaf burn and phytotoxicity.
- ⏳Critical Early Control: Specialized for the "1-3 Leaf Stage" (15-25 DAT), eliminating weeds before they steal nutrients from your crop.
- ?️Systemic & Rainfast: Rapidly absorbed by leaves and roots within 6 hours, providing deep control even against perennial tubers.
- ?Phyto-tonic Effect: By removing root competition efficiently, it helps the rice crop grow greener and healthier with more productive tillers.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Officer (Coromandel) |
| Technical Name | Bispyribac Sodium 20% + Pyrazosulfuron Ethyl 15% WDG |
| IRAC MoA Code | Group 2 (ALS Inhibitors) |
| Chemical Group | Pyrimidinyl Benzoate + Sulfonylurea |
| Formulation | WDG (Water Dispersible Granules) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Officer uses a dual-action mechanism to target the weed's enzyme system:
- Enzyme Blockade: Both active ingredients inhibit the ALS enzyme, which is essential for synthesizing amino acids (proteins) in weeds.
- Systemic Transport: The herbicide is absorbed through foliage and roots, traveling to the growing tips (meristems).
- Rapid Cessation: Weed growth stops immediately (within hours). Visual symptoms like yellowing appear in days, followed by complete death in 7-14 days.
Note: Rice plants naturally detoxify this chemistry, keeping the crop safe.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Transplanted Rice | Barnyard Grass (Echinochloa spp.), Jungle Rice, Sedges (Cyperus spp.), Broadleaf Weeds |
| Direct Seeded Rice (DSR) | Barnyard Grass, Nut Sedge (Motha), False Daisy (Eclipta alba), Water Primrose |
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 (Paddy) | 60 g | 120 - 150 L | 0.4 - 0.5 g | 90 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. Note: Though the header mentions ml, this product is a solid granule measured in grams.
How to Apply: Best Practices
- Timing: Apply at the 1-3 weed leaf stage (approx. 15-25 DAT). Do not apply on older weeds (>4 leaves).
- Water Management (Drain-Spray-Flood): Drain water from the field before spraying to expose weeds. Re-flood the field after 24-30 hours and maintain water for 5-7 days.
- Mixing (Stock Solution): Mix the 60g packet in a bucket of water (Stock Solution) first, then distribute into spray tanks to ensure uniform dosage.
- Coverage: Use Flat Fan or Flood Jet nozzles. Avoid Hollow Cone nozzles.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Can I mix Officer with insecticides?
No. Do not mix with Organophosphates (e.g., Chlorpyrifos, Malathion) as it can cause severe damage to the rice crop. Maintain a 7-10 day gap.
2. Does it control Motha (Sedges)?
Yes, the Pyrazosulfuron component is highly effective against sedges, including their underground tubers.
3. What happens if it rains after spraying?
Officer is rainfast within 6 hours. If it rains after 6 hours, re-spraying is usually not required.
4. Can I use it in cold weather?
Avoid application during severe cold spells or cold stress conditions, as the crop's ability to metabolize the herbicide slows down.
5. Is it safe for Direct Seeded Rice (DSR)?
Yes, it is registered and highly effective for DSR, provided it is applied at the correct stage (15-25 DAS).
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. Avoid draining treated water directly into fish ponds.
