Naaka+S Herbicide (Fenoxaprop-p-ethyl 6.7% EC)
The specialized "Safe-for-Rice" solution for controlling tough grassy weeds.
Naaka+S is a post-emergence herbicide designed specifically for Indian rice farming. Unlike older weed killers, this formulation includes a "Safener" technology that allows it to distinguish between your rice crop and harmful weeds. It effectively targets the Echinochloa group (Barnyard grass and Jungle rice) without stunting your paddy, making it a perfect low-cost alternative to manual weeding.
Best for: Farmers practicing Transplanted Rice or Direct Seeded Rice (DSR) facing labor shortages.
Why Choose This Product? Key Benefits
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Fast Visible Action: Weeds stop growing within 1 to 3 days after spraying. Leaves turn yellow (chlorosis) within a week, leading to complete death in 14–21 days.
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Superior Crop Safety: The "+S" stands for Safener. This additive ensures the rice plant metabolizes and detoxifies the chemical, while the weeds cannot.
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Cost Effective: At approximately ₹280–₹300 per acre (chemical cost), it is roughly 88% cheaper than hiring manual labor for weeding.
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Quick Rainfastness: The oil-based EC formulation penetrates leaves quickly. It requires only a 1 to 3-hour rain-free period after spraying to be effective.
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Soil Friendly: Does not harm beneficial soil fungi (Mycorrhiza), ensuring long-term soil health compared to other harsh chemicals.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Naaka+S |
| Technical Name | Fenoxaprop-p-ethyl 6.7% EC |
| IRAC MoA Code | Group A (1) - ACCase Inhibitor |
| Chemical Group | Aryloxyphenoxypropionate ("FOPs") |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
- Absorption: The herbicide is absorbed rapidly through the leaves of the weed. The oil-based formulation helps it cut through the waxy coating of the grass.
- Inhibition: It targets the ACCase enzyme, which is responsible for creating lipids (fats) in the plant. Without lipids, the weed cannot build new cell membranes.
- Collapse: The growing point (meristem) dies first. This leads to a "dead heart" where the central leaf can be pulled out easily, followed by the death of the whole plant.
Note: The included safener triggers the rice plant to produce enzymes that neutralize the chemical, keeping your crop safe.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Rice (Transplanted) | Barnyard Grass (Echinochloa crus-galli) |
| Rice (DSR - Direct Seeded) | Jungle Rice (Echinochloa colona) |
| Rice (General) | Crabgrass (Digitaria spp.), Foxtail Grass |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Application timing is critical: apply when weeds are at the 2 to 5 leaf stage.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Rice | 350 ml | 150 - 200 L | ~2 ml | Refer to Label |
| - | - | - | - | - |
| - | - | - | - | - |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. Always check the product leaflet for the exact PHI as per local regulations.
How to Apply: Best Practices
- Timing: Apply only when the grassy weeds have 2 to 5 leaves. If weeds are larger (tillering stage), efficacy drops significantly. [Image of weed growth stages for application]
- Mixing: Drain the field before application! The weeds must be exposed to the spray. If they are underwater, the medicine won't work.
- Coverage: Use a flat fan nozzle to ensure even coverage. Re-flood the field 24-48 hours after spraying and maintain water for 5-7 days to suppress new weeds.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. The solvent can be irritating to skin.
Frequently Asked Questions
1. What is the difference between Naaka+S and Naaka Super?
Naaka+S is a 6.7% concentration specifically made for Rice with a safety additive. Naaka Super is 9.3% concentration meant for broadleaf crops like Soybean and Cotton. Do not use Naaka Super on Rice as it may burn the crop.
2. Will this kill broadleaf weeds or sedges?
No. Naaka+S is a pure "graminicide," meaning it only kills grasses. For broadleaf weeds, you need to mix it with a compatible herbicide like Metsulfuron or 2,4-D (always check compatibility first).
3. Can I spray if the field has standing water?
No. You must drain the water to expose the weeds. Spraying on water is a waste of product. You can re-flood the field 48 hours after application.
4. Is it effective against "Motha" (Sedges/Nutgrass)?
No, it does not control Cyperus rotundus or other sedges. It specifically targets grassy weeds like Barnyard grass.
5. Why did my weeds not die?
Common reasons include: applying too late (weeds were too big), rain occurring immediately after spray, or the field was not drained properly (weeds were submerged).
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 use near aquaculture or fish ponds as it is toxic to fish.
