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Syngenta
Original product · In stock
Rifit PlusPretilachlor 37% EW
₹535
₹719
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Product details
Rifit Plus Herbicide | Pretilachlor 37% EW
A selective pre-emergence herbicide for the specified grasses, sedges and broad-leaved weeds in transplanted rice.
What it controls: The listed grasses, sedges and broad-leaved weeds in transplanted rice.
When to use it: As a pre-emergence spray 0–5 days after transplanting.
What to include: A calibrated flat-fan spray, the specified area-based product and water quantities, and no flooding for 24 hours after treatment.
Why Choose This Product? Key Benefits
- 🌾Designed for transplanted rice: The recommendation is specifically for transplanted rice, allowing early weed management to be planned around transplanting. It is not an interchangeable recommendation for direct-seeded rice or another crop.
- 🌿Several weed groups in one programme: The labelled spectrum includes grasses, sedges and selected broad-leaved weeds. Match the species present in the field to the target list rather than assuming that every weed is covered.
- 🌱Targets the early weed flush: Pre-emergence application acts against susceptible weeds as they establish. This supports early management before weeds are well developed, not a rescue spray for large, established weeds.
- 💧Water-based EW formulation: The oil-in-water emulsion is intended to be diluted for application. Syngenta describes rapid dispersion and spreading; even distribution still depends on correct mixing, calibrated equipment and field conditions.
- 🧭A practical treatment window: The 0–5-day post-transplanting window and flat-fan application method provide clear operational guidance. Planning the treatment and subsequent water management together helps keep use within the recommended programme.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Rifit Plus — Syngenta India Limited. |
| Technical Name | Pretilachlor 37% w/w EW; the leaflet states an equivalent concentration of 400 g/L. |
| HRAC MoA Code | HRAC Group 15: inhibition of very-long-chain fatty-acid synthesis. |
| Chemical Group | Alpha-chloroacetamide herbicide; legacy HRAC code K3. |
| Formulation | EW — emulsion, oil in water; selective pre-emergence herbicide. |
| Toxicity Label | Caution / Slightly Toxic. Use protective clothing and prevent contamination of water. |
How It Works: Mode of Action
Pretilachlor belongs to HRAC Group 15. It interferes with the production of very-long-chain fatty acids needed for normal development in susceptible germinating weeds.
- Apply before weeds emerge: Treat the transplanted-rice field within 0–5 days after transplanting, using the labelled pre-emergence spray method. Coverage must be uniform across the measured area.
- Interrupt early weed development: Pretilachlor inhibits very-long-chain fatty-acid synthesis, disrupting processes needed for new plant tissues. Young susceptible weeds are the intended target, rather than mature weeds already competing with the rice.
- Check the field after treatment: Follow the water-management restriction and continue observing weed emergence. Surviving or unlisted weeds require identification and suitable further management, not an automatic repeat of the same mode of action.
Repeated use of the same herbicide or mode of action can select resistant weeds. Combine appropriate agronomic measures with approved alternatives of different modes of action when needed. Changing from Rifit Plus to another pretilachlor brand does not change HRAC Group 15.
Target Crops & Pests
The following species are listed for transplanted rice. The scientific names help distinguish similar-looking grass and sedge weeds.
| Crop | Target Pest(s) |
|---|---|
| Transplanted rice |
Grass weeds
Sedges
Broad-leaved weeds
|
Use only in the recommended transplanted-rice programme. A recommendation for the same active ingredient in another formulation is not a substitute for this product’s directions.
Dosage & Application Guide
The acre figures below are approximate conversions of the original hectare recommendations. Measure the treated area accurately and retain the original hectare rates for sprayer calibration.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Transplanted rice | Approx. 607–759 ml Original: 1500–1875 ml/ha |
Approx. 202 L Original: 500 L/ha |
See note* | 90 days |
Apply as a pre-emergence spray 0–5 days after transplanting, using a knapsack sprayer fitted with a flat-fan nozzle. Avoid flooding the field for up to 24 hours after application.
*No independent per-litre or per-tank product quantity is specified. Calibrate using 1,500–1,875 ml product and 500 L spray water per hectare; do not assume that one tank covers one acre.
The 90-day PHI is the waiting period from the last application to harvest. Do not substitute it for a worker re-entry interval or a water-management instruction.
How to Apply: Best Practices
- Confirm the field and weed stage: Use in transplanted rice before emergence of the target weeds. Record the transplanting date so that application falls within the 0–5-day window; do not treat an already established weed problem as pre-emergence use.
- Measure the area and calibrate: Determine the field area and sprayer output before measuring product. Keep the formulation volume separate from the active-ingredient quantity. Use the selected labelled rate without exceeding its range.
- Prepare the spray safely: Use clean, dedicated measuring and mixing equipment, not household utensils. Dilute the measured product in the required water and mix evenly. Wear gloves, protective clothing, eye protection, mask and boots.
- Use the specified nozzle: Apply with a knapsack sprayer fitted with a flat-fan nozzle, distributing the spray uniformly. Avoid inhaling mist, contact with skin and eyes, and drift outside the intended field.
- Manage water after application: Avoid flooding for up to 24 hours after treatment. Do not add a standing-water, sand-mixing or broadcasting method from a different recommendation to this spray programme.
- Review later weed growth: Scout after application and use appropriate agronomic measures for escapes. Do not invent a repeat interval or maximum number of sprays; consult the current supplied label and qualified local advice before another treatment.
Frequently Asked Questions
1. Is Rifit Plus the same formulation as Rifit?No. This listing is Pretilachlor 37% EW, whereas Rifit is a separate 50% EC formulation. Even though both contain pretilachlor, their concentration and formulation differ. Do not substitute the same measured volume or copy one product’s application programme to the other.
2. When should I apply Rifit Plus?Use the pre-emergence spray within 0–5 days after transplanting rice, with a flat-fan nozzle. The intended target is the early weed flush. Large emerged weeds or a direct-seeded field require a separate, appropriate recommendation.
3. Should I flood the field immediately afterwards?No. For this spray programme, avoid flooding the field for up to 24 hours after application. Plan irrigation before spraying and follow the instructions on the supplied pack; do not combine incompatible water-management methods.
4. How much product and water are required?The leaflet specifies 1,500–1,875 ml product and 500 L water per hectare. These convert to approximately 607–759 ml product and 202 L water per acre. The original hectare figures remain the calibration reference. A pack size or tank size is not a field dose.
5. What is the harvest waiting period, and can I tank-mix it?The stated harvest interval is 90 days after the last application. No tank-mixture recommendation is provided here. Use only a mixture explicitly permitted by the current labels and local guidance; physical mixing alone does not establish crop safety or label approval.
Safety & Disclaimer
Keep the product in its original closed container, under lock and key, away from food, feed, children and animals. Store in a cool, well-ventilated place. Do not eat, drink or smoke during handling, and wash hands, exposed skin and contaminated clothing after work.
Avoid inhaling spray and prevent contact with skin and eyes. Never blow into a blocked nozzle. Keep product, leftover spray and equipment washings out of water bodies. Do not reuse empty containers; dispose of them and residues according to the label and local requirements.
If exposure or illness occurs, stop work and seek medical attention with the label. Move an exposed person to fresh air and rinse affected skin or eyes with clean water. Do not induce vomiting or give anything by mouth to an unconscious person. There is no specific antidote stated; treatment belongs with a clinician.
Delivery & returns
Usually delivered in 2–5 days after dispatch.
Return or exchange within 7 days of delivery. Packs must be unopened with seals intact, and return pickup is free. Read the refund policy
Safety tips
Read the label and leaflet before use. Wear gloves, a mask and full sleeves while spraying. Do not eat, drink or smoke while spraying. Keep away from children, food and animal feed.
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