Racer Pretilachlor 50% Ec
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Racer Herbicide (Pretilachlor 50% EC) - Complete Weed Protection for Rice
Stop weeds before they start. The trusted "One-Shot" pre-emergence solution for transplanted paddy.
Racer is a powerful pre-emergence herbicide containing Pretilachlor 50% EC. Designed specifically for transplanted rice, it creates a chemical barrier in the soil that prevents weeds from emerging during the critical first 50 days of crop growth.
Manufactured by Insecticides (India) Limited, Racer ensures your paddy crop gets the nutrients and sunlight it deserves without competing with stubborn grasses, sedges, or broad-leaved weeds.
Why Choose Racer? Key Benefits
- ⏱️Fast Pre-Emergence Action: Stops weed germination immediately. Must be applied within 0 to 4 days of transplanting for maximum impact.
- ?️Broad-Spectrum Control: A single solution that kills the "Big Three": Grasses (Barnyard grass), Sedges, and Broad-leaved weeds.
- ⏳50 Days of Protection: Offers long-lasting residual control, keeping fields weed-free during the critical crop establishment period.
- ?️Works in Standing Water: Perfect for paddy fields; the formula disperses evenly in water to coat the soil surface.
- ?Safe for Rice: Rice plants naturally metabolize the chemical, ensuring the crop remains healthy while weeds are destroyed.
Racer Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Racer |
| Technical Name | Pretilachlor 50% EC |
| IRAC MoA Code | Group 15 (VLCFA Inhibitor) |
| Chemical Group | Chloroacetamide |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Blue Triangle (Moderately Toxic)* |
*Always verify the physical label color as packaging may vary.
How It Works: Mode of Action
Racer attacks weeds at the cellular level before they can surface.
- Absorption: The herbicide is absorbed rapidly through the shoots (coleoptiles) of germinating weeds and secondarily through roots.
- Inhibition: It blocks the synthesis of Very Long Chain Fatty Acids (VLCFAs), which are essential for cell membrane formation.
- Elimination: Without these fatty acids, cell division stops. The weed seedling dies before it can grow true leaves or compete with your rice.
Note: Transplanted rice is safe because it is biologically capable of breaking down Pretilachlor faster than weeds can.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Transplanted Rice (Paddy) | Barnyard Grass (Echinochloa spp.) |
| Transplanted Rice (Paddy) | Sedges (Cyperus difformis, Cyperus iria) |
| Transplanted Rice (Paddy) | Broad-Leaved Weeds (Ludwigia, Eclipta alba) |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Adjust dose based on soil texture.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop / Soil Type | Dose (ml / Acre) | Water / Carrier (Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Light Soils (Sandy/Loam) | 400 - 500 ml | 200 L (or 20kg Sand) | 2.0 - 2.5 ml | 90-110 |
| Heavy Soils (Clay) | 500 - 600 ml | 200 - 250 L | 2.5 - 3.0 ml | 90-110 |
| Standard Recommendation | 500 ml | 200 L | 2.5 ml | 90-110 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing (0-4 Day Rule): Apply immediately after transplanting, between Day 0 and Day 4. If weeds have already emerged (2-3 leaf stage), Racer will not be effective.
- Mixing Method (Sand Mix): Mix the recommended dose (e.g., 500ml) with 20-25 kg of dry sand or fertilizer. Broadcast uniformly across the field.
- Coverage (Water Level): Ensure the field has 2-3 cm of standing water during application.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not drain treated water into fish ponds.
Frequently Asked Questions
1. When is the exact time to apply Racer?
It must be applied within 0 to 4 days after transplanting rice. It works best on weed seeds before they sprout.
2. Can I use Racer if weeds are already visible?
No. Racer is a Pre-Emergence herbicide. It does not kill established weeds that have already emerged and formed leaves.
3. Is Racer safe for fish in the paddy field?
No. Pretilachlor is toxic to fish. Do not apply in fields used for aquaculture or drain water into fish ponds.
4. What is the "Sand Mix" application method?
Since Racer EC dissolves in water, you can mix the liquid with dry sand and broadcast it by hand into standing water. This saves labor and spraying costs.
5. Will it damage my rice crop?
When used at the recommended dose (500ml/acre), it is safe. Overdosing or applying in deep water (>5 cm) may cause temporary yellowing, but the crop usually recovers.
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. Danger: Toxic if inhaled. Causes skin irritation. Keep away from children.