Lethal TC Chlorpyriphos 20% EC: The Ultimate Termite & Crop Protector
Secure your home foundations and boost your crop yields with the dual-power of Lethal TC.
Manufactured by the renowned Insecticides (India) Limited (IIL), Lethal TC (Chlorpyriphos 20% EC) is a broad-spectrum insecticide. It is the industry standard for creating chemical barriers against termites in construction and controlling tough pests in agriculture. Whether you are a farmer fighting Bollworms or a builder preventing termite damage, this is your cost-effective solution.
Best For: Pre-construction anti-termite treatment, Paddy, Cotton, and Sugarcane protection.
Why Choose Lethal TC? Key Benefits
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Rapid Knockdown Action: Immediate results against biting, chewing, and sucking pests upon contact.
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Proven Brand Legacy: Backed by IIL's quality assurance, ensuring you don't get separated or ineffective generic formulations.
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Long-Lasting Termite Barrier: Creates a persistent chemical wall in the soil that termites cannot breach for years.
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Superior Soil Binding: Binds tightly to soil particles, preventing it from washing away easily in paddy fields or building foundations.
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Dual-Use Versatility: One bottle serves two purposes: protecting your crops and termite-proofing your property.
Technical Specifications
[Image of Chlorpyrifos chemical structure]| Parameter | Details |
|---|---|
| Brand Name | Lethal / Lethal TC |
| Technical Name | Chlorpyriphos 20% EC |
| IRAC MoA Code | Group 1B (Organophosphate) |
| Chemical Group | Organophosphates ($C_9H_{11}Cl_3NO_3PS$) |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Yellow Triangle (Highly Toxic) |
How It Works: Mode of Action
Lethal TC works by targeting the nervous system of insects. It acts as an Acetylcholinesterase (AChE) inhibitor.
[Image of acetylcholinesterase inhibition mechanism]- Contact & Stomach Action: The moment a pest touches or eats a treated plant/soil, the chemical enters their body.
- Nervous System Shutdown: It blocks the enzyme responsible for calming nerves, causing the insect's nerves to fire uncontrollably.
- Vapor Action (Fumigation): The chemical releases a vapor that penetrates hidden tunnels (like in sugarcane or termite mounds), reaching pests that direct spray missed.
Note for Termites: It creates a repellent barrier. Termites detect the chemical wall and avoid it; if they try to cross, they die.
Target Crops & Pests
| Crop / Sector | Target Pest(s) |
|---|---|
| Paddy (Rice) | Stem Borer (Dead Heart), Leaf Folder, Gall Midge |
| Cotton | American & Spotted Bollworms, Aphids, Whitefly |
| Construction (Buildings) | Subterranean Termites (Odontotermes obesus) |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. For termites, use the 1:19 mixing ratio.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Paddy (Rice) | 500 – 750 ml | 200 – 300 L | 2.5 ml | 30 Days |
| Cotton | 500 – 1200 ml | 200 – 400 L | 3 ml | 30 Days |
| Termite Treatment | See Note below | - | 50 ml (1:19) | N/A |
*For Termites (Construction): Mix 1 Liter of Lethal TC with 19 Liters of water. Apply 5 to 7.5 Liters of this mix per square meter of soil surface.
How to Apply: Best Practices
- Timing (Crops): Spray at the first sign of infestation. For paddy, apply during nursery or early tillering stages. Avoid spraying during flowering to protect bees.
- Mixing (Termites): Ensure the emulsion turns a milky white. Do not use if the oil separates from the water.
- Coverage (Construction): When treating foundations, ensure the chemical soaks the soil at the wall-floor junction, as this is the main entry point for termites.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. If you feel dizzy or nauseous, stop immediately.
Frequently Asked Questions
1. What is the difference between Lethal 20% EC and Lethal TC?
Chemically, they are identical (Chlorpyriphos 20%). However, "Lethal 20% EC" is labeled for agricultural crops, while "Lethal TC" is packaged with specific instructions for Termite Control in construction.
2. Can I use this on vegetables?
It is recommended for Brinjal and Cabbage, but banned on Ber, Citrus, and Tobacco. Due to high residues, always maintain a strict gap (PHI) of at least 7-10 days before harvesting vegetables.
3. How do I mix it for home termite control?
The standard ratio is 1:19. Mix 1 cup of Lethal TC with 19 cups of water. For wood treatment, you can mix it with Kerosene instead of water for better penetration.
4. Is Lethal TC banned in India?
No, it is currently registered for use. However, it is under review. It is banned for specific crops (Citrus, Ber) but legal for Paddy, Cotton, and Construction use.
5. What is the price of Lethal TC?
It is a highly affordable solution. A 1-liter bottle typically costs between ₹380 and ₹535, making it significantly cheaper than Imidacloprid-based alternatives.
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. Lethal TC is highly toxic to fish and bees; do not spray near water bodies or during active bee foraging.
