Hacker Herbicide (Pretilachlor 30.7% EC) by Nichino
The Ultimate Pre-Emergence Solution for Weed-Free Rice Farming
Struggling with labor shortages and rising costs in your paddy fields? Hacker is a premium "Green Label" herbicide designed specifically for modern Indian agriculture. Whether you practice traditional transplanting or Direct Seeded Rice (DSR), Hacker provides a powerful chemical barrier that stops weeds before they even start.
Powered by Japanese technology, this formulation includes a specialized "Safener" that protects your delicate rice seedlings while aggressively eliminating barnyard grass, sedges, and broadleaf weeds. Secure your yield from Day 1 with the most trusted pre-emergence protection.
Why Choose This Product? Key Benefits
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Early Action Advantage: Stops weed competition immediately. Applied within the first 0-5 days, it ensures your crop gets 100% of the soil nutrients without fighting weeds.
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Advanced Crop Safety: Contains a specialized "Safener" (Fenclorim) that acts as a shield, making it perfectly safe for Direct Seeded Rice (DSR) and sensitive young seedlings.
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Long-Lasting Protection: Provides residual control for 30 to 40 days, covering the most critical period of crop establishment and saving you from repeated manual weeding.
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Water Compatible: Designed for the paddy environment. It works excellently in wet soils and maintains efficacy even in standing water conditions.
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Broad Spectrum Control: A single solution that kills the "Big Three": stubborn Grasses (like Barnyard grass), Sedges, and Broadleaf weeds simultaneously.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Hacker |
| Technical Name | Pretilachlor 30.7% EC |
| IRAC MoA Code | Group K3 (VLCFA Inhibitor) |
| Chemical Group | Chloroacetanilide |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Green Label (Slightly Toxic) |
How It Works: Mode of Action
Hacker works as a "gatekeeper" on the soil surface. It is a selective herbicide, meaning it knows the difference between your crop and the weeds.
- Absorption: The chemical forms a film on the water/soil surface. As weeds try to emerge, they absorb the herbicide through their shoot (coleoptile).
- Cellular Shutdown: Once inside the weed, it stops the production of long-chain fatty acids (VLCFA), which halts cell division. The weed seedling stops growing and dies before it can surface.
- The Safety Lock: The added Safener (Fenclorim) triggers a rapid detox enzyme (GST) inside the rice plant. This allows the rice to digest the chemical harmlessly, while the weeds (which lack this ability) perish.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Transplanted Rice | Barnyard Grass (Echinochloa spp.), Jungle Rice, Smallflower Umbrella Sedge |
| Direct Seeded Rice (DSR) | Rice Flat Sedge (Cyperus iria), Chinese Sprangletop, Annual Grasses |
| Rice Nursery | Broadleaf weeds like Ludwigia and Eclipta alba |
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) |
|---|---|---|---|---|
| Transplanted Rice | 600 - 800 ml | 200 L | 3 - 4 ml | 90 Days |
| Direct Seeded Rice (DSR) | 600 ml | 200 L | 3 ml | 90 Days |
| Rice Nursery | 600 ml | 200 L | 3 ml | 90 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: For Transplanted Rice, apply within 0-5 days of transplanting. For Direct Seeded Rice (DSR), apply within 0-3 days of sowing (Pre-emergence).
- Mixing: Shake the bottle well. For spraying, mix with clean water using a Flat Fan or Flood Jet nozzle. For broadcasting, mix the dose with 20-25kg of dry sand per acre.
- Coverage: Maintain a thin film of standing water (2-3 cm) in the field for 4-5 days after application. Do not drain the water, as this washes away the chemical barrier.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Avoid draining paddy water into fish ponds.
Frequently Asked Questions
1. Does Hacker kill weeds that have already emerged?
No. Hacker is a pre-emergence herbicide. It must be applied to the soil before weeds sprout (0-5 days). It will not kill established weeds with 2-3 leaves.
2. Is Hacker safe for Direct Seeded Rice (DSR)?
Yes! Unlike generic Pretilachlor, Hacker 30.7% EC contains a special Safener that protects rice seeds, making it highly effective and safe for DSR systems.
3. Can I mix Hacker with Sand instead of spraying?
Yes. You can mix the required dose (600ml) with 20-25 kg of sand and broadcast it uniformly over the standing water in the field.
4. What happens if I use it without standing water?
The efficacy may drop. The product requires moisture to form a film on the soil surface. Ensure the soil is wet or has a thin layer of water at the time of application.
5. Is there an antidote for accidental poisoning?
No, there is no specific antidote. Treatment is symptomatic. In case of ingestion or severe exposure, seek medical attention immediately and show the product label/bottle.
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. This product is toxic to fish and aquatic organisms; avoid application near aquaculture.
