Green Expert Herbicide (Bispyribac Sodium + Penoxsulam)
The Ultimate "One-Shot" Weed Solution for Indian Rice Farmers
Rice farming faces a massive challenge: weeds. Uncontrolled weeds can destroy 15% to 45% of your yield in transplanted rice and over 50% in Direct Seeded Rice (DSR). With labor shortages making manual weeding expensive (costing up to ₹3,750 per acre), you need a smarter solution.
Green Expert by Insecticides (India) Ltd is a premium, dual-action herbicide. It combines two powerful actives—Bispyribac Sodium and Penoxsulam—to clear grasses, sedges, and broadleaf weeds in a single spray, costing only about 20-25% of what you would pay for manual labor.
Why Choose This Product? Key Benefits
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Stops Growth Instantly: Weeds stop growing within hours of spraying, so they stop stealing nutrients from your paddy immediately.
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Dual Action Power: Combines two chemicals to kill tough weeds that single-molecule products (like plain Bispyribac) might miss.
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Long-Lasting Control: Provides residual activity that suppresses new weed seeds from germinating for weeks after application.
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Superior Rainfastness: The SC formulation sticks to leaves better, even on waxy weeds like Barnyard grass.
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Safe for Paddy: Highly selective to rice plants. Your crop rapidly digests the chemical, staying green and healthy while weeds die.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Green Expert |
| Technical Name | Bispyribac Sodium 9.5% + Penoxsulam 7.8% w/v SC |
| IRAC MoA Code | Group 2 (ALS Inhibitors) |
| Chemical Group | Pyrimidinyl carboxy + Triazolopyrimidine |
| Formulation | Suspension Concentrate (Liquid) |
| Toxicity Label | Blue/Green (Refer to Pack Label) |
How It Works: Mode of Action
Green Expert works by disrupting the internal "food factory" of the weed. It targets the ALS enzyme, which weeds need to make proteins.
- Absorption: The liquid is absorbed through leaves and roots, moving to the growing tips.
- Starvation: It blocks the production of essential amino acids (Valine, Leucine, Isoleucine), causing growth to stop instantly.
- Elimination: Weeds turn yellow (chlorosis) within days, turn brown (necrosis), and completely die within 14-21 days.
The dual-chemical mix ensures that even if a weed resists one chemical, the other one kills it.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Paddy (Transplanted) | Barnyard Grass, Jungle Rice, Sedges, False Daisy |
| Direct Seeded Rice (DSR) | Complex mixed weed flora (Grasses & Broadleaf) |
| Difficult Weeds | Water Primrose (Ludwigia), Umbrella Sedge |
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 (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Rice (Paddy) | 100 ml | 150 Litres | 0.6 - 0.7 ml | 30 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 when weeds are in the 2–5 leaf stage (approx. 10-20 days after transplanting). Too early or too late reduces effectiveness.
- Mixing: Use 150 liters of water per acre. Do NOT mix with organophosphate insecticides (like Malathion), as it can damage your crop.
- Coverage: Drain the field water before spraying to expose the weeds. Re-flood the field 48-72 hours after spraying to suppress new weeds.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. How quickly does Green Expert kill weeds?
Weeds stop growing within hours. You will see yellowing in 3-5 days, and complete death occurs in 14-21 days.
2. Can I mix Green Expert with insecticides?
It is generally compatible with Fipronil or Pyrethroids. However, NEVER mix with Organophosphates (like Chlorpyrifos) as it will burn your paddy.
3. What is the price per acre?
The cost is approximately ₹655 to ₹670 per acre (for 100ml), which is significantly cheaper than manual weeding.
4. Can it be used in Direct Seeded Rice (DSR)?
Yes, it is highly effective in DSR. Apply when weeds are at the 2-5 leaf stage (usually 15-25 days after sowing).
5. Does rain affect the spray?
Green Expert has excellent rainfastness. However, for best results, ensure there is no rain for at least 6 hours after application.
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.
