Lethal Super 505 (Chlorpyrifos 50% + Cypermethrin 5% EC) - Powerful Insecticide for Cotton & Paddy
The ultimate "Rescue Chemistry" for hard-to-kill pest complexes.
Lethal Super 505 by Insecticides (India) Limited is a heavy-duty combination insecticide designed for situations where single-molecule products fail. It combines the long-lasting residual power of Chlorpyrifos with the instant "knockdown" speed of Cypermethrin.
Best For: Farmers dealing with severe infestations of Bollworms in Cotton and Stem Borers in Paddy. It attacks pests through vapor, stomach, and contact action, ensuring no pest can hide inside the canopy.
Why Choose This Product? Key Benefits
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Instant Knockdown: Cypermethrin paralyzes pests immediately upon contact, stopping crop damage instantly.
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Double Protection: The "Synergistic Action" protects the active ingredients from pest resistance enzymes.
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Vapor Action: Chlorpyrifos creates a fumigant effect, killing hidden pests (like leaf folders) inside curled leaves.
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Rainfast & Stable: The advanced EC formulation sticks to leaves and penetrates waxy layers effectively.
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Cost-Effective: Provides broad-spectrum control at a fraction of the cost of newer diamide chemistries.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Lethal Super 505 |
| Technical Name | Chlorpyrifos 50% + Cypermethrin 5% EC |
| IRAC MoA Code | Group 1B (Organophosphate) + Group 3A (Pyrethroid) |
| Chemical Group | Organophosphate + Synthetic Pyrethroid |
| Formulation | Emulsifiable Concentrate (Liquid) |
| Toxicity Label | Yellow / Red (Highly Toxic - Use Caution) |
How It Works: Mode of Action
Lethal Super 505 attacks the insect nervous system on two fronts, making it nearly impossible for pests to survive.
- Contact Paralysis (Cypermethrin): Affects the sodium channels in the nerve cells, causing immediate hyperexcitation and paralysis. The pest stops feeding instantly.
- Enzyme Inhibition (Chlorpyrifos): Inhibits the Acetylcholinesterase (AChE) enzyme. It also blocks the pest's natural enzymes that would usually detoxify pyrethroids, making the mixture much stronger than the individual parts.
- Vapor Penetration: The fumigant action enters the respiratory system (spiracles) of larvae hiding inside bolls or folded leaves.
Result: Complete control of eggs, larvae, and adults.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cotton | American Bollworm, Spotted Bollworm, Pink Bollworm, Jassids, Thrips |
| Rice (Paddy) | Yellow Stem Borer, Rice Leaf Folder (Hispa) |
| Vegetables (Brinjal/Okra) | Shoot and Fruit Borer, Aphids, Whiteflies |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Cotton | 400 ml | 200 L | 2 ml | 15 |
| Rice (Paddy) | 250 - 300 ml | 150 - 200 L | 1.5 - 2 ml | 15 |
| Vegetables | 300 - 400 ml | 150 L | 2 ml | 7 - 10 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting to ensure produce safety.
How to Apply: Best Practices
- Timing: Apply when pest population crosses the Economic Threshold Level (ETL). Avoid spraying during peak flowering to protect bees. Best sprayed in the evening.
- Mixing: Add the required dose to a small quantity of water first, mix well, and then add to the main tank. Ensure the emulsion does not separate.
- Coverage: Use a Hollow Cone nozzle for fine misting. Ensure full canopy coverage, especially the undersides of leaves where sucking pests hide.
- Safety: Always wear PPE (gloves, mask, goggles). This product is toxic. Wash hands thoroughly with soap after use.
Frequently Asked Questions
1. Is Lethal Super 505 systemic?
Yes, the Chlorpyrifos component has translaminar (penetrating) and mild systemic action, while Cypermethrin acts by contact.
2. Can I use this for Termite control?
Yes, it is highly effective for termite control in buildings and soil drenching for crops like Sugarcane.
3. Is it safe for fish?
No. This product is toxic to aquatic life. Do not apply in paddy fields where fish farming is practiced.
4. What is the antidote in case of poisoning?
In case of accidental ingestion or severe exposure, consult a doctor immediately. Atropine Sulfate is the primary antidote.
5. Can I mix it with fungicides?
It is generally compatible with most non-alkaline fungicides, but a physical compatibility test (jar test) is recommended before mixing.
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 spray near water bodies.
