Koranda Insecticide-Rallis Crop Protection
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Koranda 505 Insecticide (Chlorpyrifos 50% + Cypermethrin 5% EC)
The trusted "505" formula by Rallis India (Tata Enterprise) for powerful, broad-spectrum pest control.
Rallis Koranda 505 is a market-leading "combo-chemistry" insecticide designed for the toughest Indian farming conditions. By combining the knockdown power of Cypermethrin with the long-lasting residue of Chlorpyrifos, it offers a dual mode of action that eliminates caterpillars and sucking pests simultaneously.
Best for: Farmers needing an affordable, heavy-duty solution for Cotton, Paddy, and Vegetable pests.
Why Choose This Product? Key Benefits
- ⏱️Instant "Knockdown" Effect: Stops pests immediately upon contact, preventing further crop damage within minutes.
- ?️Dual Action Power: Works through contact (touch) and stomach action (ingestion), ensuring pests die even if they hide.
- ⏳Long-Lasting Protection: Remains active on the leaf surface for 10–14 days, reducing the need for frequent re-spraying.
- ?️Powerful Vapor Action: The Chlorpyrifos component creates fumes that penetrate dense canopies and soil pores to kill hidden pests like Stem Borers.
- ?Cost-Effective: Provides premium pest control at roughly 30% of the cost of newer patent molecules (approx. ₹260–₹310 per acre).
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Koranda 505 |
| Technical Name | Chlorpyrifos 50% + Cypermethrin 5% EC |
| IRAC MoA Code | Group 1B (Organophosphate) + Group 3A (Pyrethroid) |
| Chemical Group | Organophosphate + Synthetic Pyrethroid |
| Formulation | EC (Emulsifiable Concentrate) |
| Toxicity Label | Yellow Triangle (Highly Toxic) |
How It Works: Mode of Action
Koranda works via "Synergistic Potentiation," meaning the two chemicals work better together than alone (The 1+1=3 Effect).
- Nervous System Attack: Chlorpyrifos targets the enzyme Acetylcholinesterase (AChE), causing the insect's nerves to fire uncontrollably, leading to paralysis.
- Sodium Channel Block: Cypermethrin attacks the nerve axon channels, creating an immediate electrical shock that knocks the insect off the plant.
- Metabolic Synergism: Chlorpyrifos prevents the insect from detoxifying Cypermethrin, making the spray lethal even to semi-resistant pests.
This multi-site attack ensures that the insect cannot recover from the initial shock.
Target Crops & Pests
[Image of cotton bollworm life cycle]| Crop | Target Pest(s) |
|---|---|
| Cotton | American Bollworm, Spotted Bollworm, Pink Bollworm, Aphids, Jassids, Whitefly |
| Paddy (Rice) | Yellow Stem Borer (YSB), Leaf Folder, Hispa |
| Vegetables (Brinjal, Cabbage) | Shoot & Fruit Borer, Diamondback Moth (DBM) |
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 - 500 ml | 200 L | 2.0 - 2.5 ml | 15 |
| Paddy | 350 - 400 ml | 200 L | 2.0 ml | 15 - 30 |
| Vegetables | 200 - 300 ml | 150 L | 1.5 - 2.0 ml | 7 |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Use as a "rescue spray" when pest population crosses the economic threshold (ETL). Avoid spraying during full bloom to protect bees.
- Mixing: Pour the required dose into a small amount of water first to create a white emulsion, then add the remaining water.
- Coverage: Ensure uniform coverage. For Paddy Stem Borer, maintain 2-3 inches of water in the field to maximize vapor action.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. This product is toxic to fish and bees; do not spray near water bodies.
Frequently Asked Questions
1. Does Koranda 505 control Pink Bollworm in Cotton?
Yes. It is widely used as a rescue spray for Pink Bollworm (PBW) because its vapor action penetrates the boll, and the dual chemistry helps manage resistance.
2. Can I use Koranda on export-quality crops (Basmati Rice/Vegetables)?
It is not recommended for export crops due to strict Maximum Residue Limits (MRLs) in the EU and US. Use safer alternatives like Chlorantraniliprole for export farming.
3. What is the difference between Koranda and Coragen?
Koranda is a broad-spectrum contact insecticide (cheaper, immediate kill, shorter duration). Coragen is a systemic insecticide (expensive, longer duration, safer).
4. Is it safe for bees?
No. Koranda contains Cypermethrin and Chlorpyrifos, both of which are highly toxic to bees. Do not spray during the day when bees are foraging.
5. What is the approximate price of a 1 Liter bottle?
The market price typically ranges from ₹650 to ₹780 per Liter, making it a very cost-effective option compared to newer molecules.
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. This product is a Yellow Label (Highly Toxic) pesticide; keep out of reach of children and animals.