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RifitPretilachlor 50% EC
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Product details
Rifit Herbicide | Pretilachlor 50% EC
A selective pre-emergence herbicide for the specified weeds in transplanted rice. Confirm the full application programme on the supplied pack before use.
What it controls: The listed grasses, sedges and broad-leaved weeds in transplanted rice.
When to use it: Before weed emergence, within 5 days after transplanting rice.
What to include: The supplied leaflet’s product dose, water quantity, application method and harvest waiting period before preparing any treatment.
Why Choose This Product? Key Benefits
- 🌾A defined rice use: Rifit is recommended for transplanted rice, allowing weed control to be planned around crop establishment. This is not an automatic recommendation for direct-seeded rice or other crops.
- 🌿Several labelled weed species: The pack identifies grass weeds, sedges and selected broad-leaved weeds. Comparing the field’s weeds with this list helps determine whether the product fits the problem rather than relying on a broad-spectrum claim alone.
- 🌱Pre-emergence action: The treatment is intended for the early establishment period of susceptible weeds. It is not presented as a rescue treatment for large weeds that are already well established.
- 🧬An identifiable mode of action: Pretilachlor belongs to HRAC Group 15, so its place in a weed-resistance programme can be assessed. A different brand containing pretilachlor is still the same mode of action.
- 🧭A clear timing reference: The pack specifies pre-emergence use within 5 days after transplanting. This provides a practical scheduling reference, while the full supplied leaflet remains essential for the quantity, water and delivery method.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Rifit — marketed by Syngenta India Limited. |
| Technical Name | Pretilachlor 50% EC. |
| HRAC MoA Code | HRAC Group 15: inhibition of very-long-chain fatty-acid synthesis. |
| Chemical Group | Alpha-chloroacetamide herbicide; legacy HRAC code K3. |
| Formulation | EC — emulsifiable concentrate; selective pre-emergence herbicide. |
| Toxicity Label | Caution. Avoid inhalation and skin contact; wear protection and keep away from food, feed, heat and open flame. |
How It Works: Mode of Action
Pretilachlor inhibits the synthesis of very-long-chain fatty acids, which are important for normal development of new plant tissues. HRAC places it in Group 15.
- Target the early weed stage: Plan the treatment before weeds emerge and within 5 days after transplanting rice. Check that the weeds expected in the field are included in the recommended spectrum.
- Interrupt new weed growth: In susceptible germinating weeds, pretilachlor disrupts very-long-chain fatty-acid synthesis and interferes with early development. This explains the importance of a pre-emergence rather than late-rescue treatment.
- Monitor the field: Continue checking for new or surviving weeds after the application. Identify escapes and use suitable integrated weed-management measures instead of assuming that every weed or later flush is controlled.
Avoid relying continuously on the same herbicide mode of action. Combine appropriate agronomic practices with approved alternative modes of action where needed. Do not treat a change between Rifit and Rifit Plus as a change of HRAC group.
Target Crops & Pests
The Indian Rifit pack lists the following weeds in transplanted rice. Scientific names are retained to distinguish similar-looking species.
| Crop | Target Pest(s) |
|---|---|
| Transplanted rice |
Grass weeds
Sedges
Broad-leaved weeds
|
Use only for the crop-and-weed combinations on the current supplied label. Do not substitute a weed list or application programme from another concentration or brand.
Dosage & Application Guide
Do not measure or apply Rifit until the complete directions on the supplied Indian pack and enclosed leaflet are available. The formulation quantity, water volume, delivery method and harvest interval must be checked together.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Transplanted rice | See note* | See note* | See note* | See note* |
Timing: apply as a pre-emergence treatment within 5 days after transplanting. This timing statement alone is not a complete spray or field-application recipe.
*The numerical product dose, water volume, per-litre quantity and PHI are not supplied here. Obtain the exact current Rifit 50% EC leaflet before use; do not interpret an empty cell as zero or no restriction.
Rifit Plus 37% EW is a different formulation. Its product quantity, irrigation directions, spray method or harvest interval must not be carried over to Rifit 50% EC. Do not improvise a tank recipe from a retailer’s bottle size.
How to Apply: Best Practices
- Identify the field and weeds: Confirm transplanted rice and the listed weed species. Record the transplanting date and assess the weed stage; the intended use is pre-emergence, within 5 days.
- Obtain the complete pack instructions: Read the supplied label and enclosed leaflet before mixing. Confirm the formulation rate, treated area, water management, delivery equipment, harvest waiting period and any re-entry or repeat restrictions.
- Keep formulations separate: Check that the container says Pretilachlor 50% EC. Do not use directions for Rifit Plus 37% EW or another pretilachlor formulation as a substitute, even if the brand names look similar.
- Calibrate only after confirming the programme: Once the exact directions are established, measure the actual treatment area and calibrate the required equipment. Do not guess a per-tank dose, nozzle, sand-carrier method or standing-water depth.
- Protect the operator and surroundings: Wear protective clothing, head protection, face protection and the other PPE required by the supplied label. Avoid inhalation and skin contact. Keep the product away from food, feed, children, animals, heat and open flame.
- Review the field after use: Monitor weed development and obtain advice for any escape or later flush. Do not invent a repeat treatment or shorten an unverified interval; follow the current label’s restrictions and an appropriate resistance-management programme.
Frequently Asked Questions
1. Is Rifit interchangeable with Rifit Plus?No. Rifit in this listing contains Pretilachlor 50% EC; Rifit Plus contains Pretilachlor 37% EW. The shared active ingredient does not make their formulation volumes or application programmes interchangeable. Both remain HRAC Group 15 for resistance planning.
2. Can Rifit be used after weeds are well established?The recommendation described here is pre-emergence use within 5 days after rice transplanting. It is not a late post-emergence rescue recommendation. Identify the weed stage and seek a suitable approved option if that window has been missed.
3. What is the dose per acre or per tank?No numerical dose is provided here because the full Rifit 50% EC application programme must be checked on the supplied leaflet. Do not borrow the Rifit Plus rate or assume that a particular bottle size treats one acre. Confirm the product rate, water quantity and method together.
4. Is this a recommendation for direct-seeded rice?No. The crop specified here is transplanted rice. Similar field appearance or use of the same active ingredient elsewhere does not establish a direct-seeded-rice recommendation. Follow the crop and use pattern on the current pack.
5. When can I harvest or enter the field, and can I mix it?Check the exact supplied label and leaflet for harvest and worker-access restrictions before treatment. No numerical PHI, re-entry interval or tank-mixture approval is supplied here. An absent value does not mean unrestricted use, and physical mixing does not establish crop safety or approval.
Safety & Disclaimer
Keep the product in its original closed container under lock and key, away from children, animals, food and feed. Store in a cool, dry, clean place away from heat and open flame. Do not use household food or drink containers for measuring or storing pesticide.
Avoid inhalation and contact with skin and eyes. Wear the protection specified on the supplied label, wash contaminated skin and clothing after exposure, and do not eat, drink or smoke while handling. Prevent environmental contamination by product, residues and washings. Do not reuse empty containers; follow current disposal instructions.
If exposure or illness occurs, stop work and obtain medical attention with the product label. Rinse exposed skin or eyes with clean water. Do not induce vomiting or give anything by mouth to an unconscious person. First aid and treatment must follow current professional advice, not an improvised home remedy.
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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