Perfect (Imazethapyr 10% SL) Herbicide for Soybean & Groundnut
The ultimate Early Post-Emergence (EPOE) solution for controlling grasses, broadleaf weeds, and sedges in leguminous crops.
Perfect (Imazethapyr 10% SL) is a broad-spectrum systemic herbicide designed specifically for Soybean, Groundnut, and Pulses. It targets weeds at their root and shoot growing points, stopping competition for nutrients within days. Manufactured by Krishi Rasayan (KREPL), it is the trusted choice for protecting Kharif yields.
Best For: Farmers facing mixed weed infestations (Grasses + Sedges) who need a safe, selective solution for legumes.
Why Choose This Product? Key Benefits
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Stops Growth Instantly: Weeds stop competing for food and water within hours of application, even if they turn yellow later.
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Triple Action Control: Effective against all three types of weeds: Grassy weeds, Broadleaf weeds, and difficult Sedges (Motha).
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Long-Lasting Residual Effect: Provides season-long control by preventing new weeds from germinating effectively.
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Rainfastness: Absorbed quickly; requires only 1 to 2 hours of rain-free time after spraying (though 6 hours is ideal).
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Crop Safety: Highly selective for legumes like Soybean and Groundnut; the crop naturally metabolizes the chemical without harm.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Perfect |
| Technical Name | Imazethapyr 10% SL |
| IRAC MoA Code | Group 2 (ALS Inhibitor) |
| Chemical Group | Imidazolinone |
| Formulation | Soluble Liquid (SL) |
| Molecular Formula | $C_{15}H_{19}N_{3}O_{3}$ |
How It Works: Mode of Action
Perfect (Imazethapyr) works by inhibiting the Acetolactate Synthase (ALS) enzyme. This enzyme is vital for producing amino acids (Valine, Leucine, Isoleucine) that plants need to grow.
- Dual Absorption: It is absorbed through both the roots and the leaves, entering the plant system rapidly.
- Translocation: The chemical moves via the Xylem and Phloem to the "meristems" (growing points) of the weed.
- Starvation & Death: It stops protein synthesis. Weeds stop growing immediately, turn yellow (chlorosis), and die within 14-21 days.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Soybean | Echinochloa (Barnyard grass), Euphorbia (Dudhi), Commelina (Dayflower), Cyperus (Sedge). |
| Groundnut | Cyperus difformis, Amaranthus (Chaulai), Trianthema (Carpet weed). |
| Black Gram & Green Gram | General complex of mixed weeds (Grasses and Broadleaves). |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Do not rely solely on pump-wise measurements.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Soybean | 400 - 500 ml | 200 Litres | 2.0 - 2.5 ml | 75 Days |
| Groundnut | 400 - 600 ml | 200 - 240 Litres | 2.0 - 2.5 ml | 90 Days |
| Pulses (Urad/Moong) | 250 - 300 ml | 200 Litres | 1.5 - 2.0 ml | 50 Days |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply 7 to 14 days after sowing when weeds are in the 1-2 leaf stage. Spraying large weeds reduces effectiveness.
- Mixing: Always use a surfactant or sticker (Methylated Seed Oil recommended) at 2ml/Litre to help the chemical stick to waxy leaves.
- Coverage: Use a Flat Fan or Flood Jet nozzle for uniform coverage. Do not use a mist nozzle.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Can I use Perfect on crops other than legumes?
No. Imazethapyr is selective only for leguminous crops (Soybean, Groundnut, Pulses). It can severely damage cotton, vegetables, or cereals.
2. Does it control Motha (Sedges)?
Yes, "Perfect" is highly effective against sedges like Cyperus when applied at the correct early stage.
3. When can I plant the next crop?
Be careful with crop rotation. Mustard, Wheat, and Maize are sensitive to residues. Wait at least 100 days or conduct a soil test/bioassay before planting sensitive Rabi crops.
4. Is it safe if it rains after spraying?
Ideally, you need 6 rain-free hours, but the product is generally rainfast after 1-2 hours if applied with a good sticking agent.
5. Can I mix it with Glyphosate?
Yes, but only for "burndown" applications before the crop emerges. Do not mix with Glyphosate on standing crops.
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. Avoid spraying near aquaculture ponds.
