
Legacee Herbicide
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Legacee Herbicide (Fenoxaprop-p-ethyl 6.7% EC) – Expert Grassy Weed Control
The ultimate post-emergent solution by PI Industries for controlling tough grasses like Barnyard Grass and Chinese Sprangletop in Paddy.
Rice farming is evolving, and so are the weeds. Legacee (Fenoxaprop-p-ethyl 6.7% EC) is a specialized systemic herbicide designed to protect your rice yield from aggressive grassy weeds. Whether you practice traditional transplantation or Direct Seeded Rice (DSR), Legacee targets weeds like the Echinochloa complex without harming your crop.
Why it works: It uses advanced "Safener Technology" (Isoxadifen-ethyl). This acts as a biochemical switch, allowing the herbicide to kill the weed while the rice plant safely metabolizes it.
Why Choose This Product? Key Benefits
- ⏱️Targeted "Whip" Action: Specifically engineered to kill the toughest grassy weeds (Barnyard grass & Jungle rice) that steal nutrients from your crop.
- ?️Superior Crop Safety: Contains the safener Isoxadifen-ethyl. This ensures your rice plants are protected from chemical shock while the weeds are destroyed.
- ⏳Flexible Application Window: Works best when applied at the 2-leaf to 5-leaf stage of weeds, giving you a reliable window for application.
- ?️Excellent Rainfastness: Quickly absorbed by leaves within 1 to 3 hours, making it perfect for monsoon-season rice cultivation.
- ?Cost-Effective Solution: Delivers effective weed control at approximately 15-25% of the cost of manual weeding labor per acre.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Legacee |
| Technical Name | Fenoxaprop-p-ethyl 6.7% w/w EC |
| IRAC MoA Code | Group 1 (Formerly Group A) |
| Chemical Group | Aryloxyphenoxypropionate ("FOPs") |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Legacee works by targeting the specific biology of grassy weeds. It stops the production of lipids (fats) essential for plant growth.
- Absorption: The herbicide is absorbed rapidly through the leaves of the weeds (not the roots).
- Translocation: It travels through the plant to the growing points (meristems) in the shoots and roots.
- Inhibition: It blocks the ACCase enzyme. Without this enzyme, the weed cannot create new cell membranes. Growth stops in 1-3 days, leaves turn yellow (chlorosis), and the weed dies completely within 12-21 days.
Note: Legacee does not kill broadleaf weeds or sedges because their enzyme structure is different.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Rice (Paddy) (Transplanted & DSR) | Barnyard Grass (Echinochloa crus-galli) |
| Rice Nursery | Jungle Rice (Echinochloa colona) |
| Direct Seeded Rice | Viper Grass / Chinese Sprangletop (Leptochloa chinensis) |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Under-dosing leads to resistance; over-dosing may shock the crop.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Rice (Transplanted) | 325 - 350 ml | 150 - 200 L | 2.0 - 2.5 ml | 61 Days |
| Direct Seeded Rice | 325 - 350 ml | 150 - 200 L | 2.0 - 2.5 ml | 61 Days |
| High Weed Density | Up to 400 ml | 200 L | 2.0 ml | 61 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Spray when grassy weeds have 2 to 5 leaves. Spraying too early (1 leaf) may result in new weeds germinating later. Spraying too late (after tillering) reduces effectiveness.
- Mixing: Do NOT mix directly with 2,4-D (it reduces grass control). If broadleaf control is needed, mix with Metsulfuron+Chlorimuron (Almix) or use Bispyribac-sodium as a partner.
- Water Management (Crucial): Drain the field before spraying so weed leaves are exposed. Re-flood the field 24 to 48 hours after application and maintain 2-3 inches of water for 5-7 days.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Does Legacee kill broadleaf weeds and sedges?
No. Legacee is a "Graminicide," meaning it only kills grasses. For broadleaf weeds, you need to mix it with a compatible partner like Metsulfuron or Ethoxysulfuron.
2. Will Legacee damage my rice crop?
Legacee contains a safener that protects rice. However, you might see slight yellowing (crop shock) if the crop is under stress (drought) or if the dose is too high. This is temporary, and the crop typically recovers in 10-14 days.
3. Can I use Legacee on crops other than rice?
Legacee is registered for rice. However, Fenoxaprop-p-ethyl is also used in crops like Soybean, Black gram, and Cotton for grass control (check specific product labels for non-rice crops).
4. What if it rains after spraying?
Legacee is rainfast within 1 to 3 hours. If it rains 3 hours after application, re-spraying is usually not required.
5. How does it compare to manual weeding?
It is significantly cheaper. Using Legacee costs about ₹450-₹800 per acre, whereas manual labor can cost ₹3,000-₹4,500 per acre.
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. Do not drain treated water into fish ponds or natural waterways immediately after spraying.

