Nurocombi Insecticide (FMC): The Powerful '505' Formula for Cotton & Rice

Get double protection with the synergistic power of Chlorpyrifos 50% and Cypermethrin 5%.

Nurocombi by FMC India is a market-leading broad-spectrum insecticide, popularly known as the "505" formulation. It is designed to fight tough mixed infestations of sucking and chewing pests. By combining two powerful active ingredients, it provides an immediate "knockdown" of pests while ensuring long-lasting residual protection for your crops.

Best For: Farmers dealing with complex pest attacks (Bollworms, Borers, and Sucking pests) simultaneously in Cotton, Rice, and Vegetables.

Why Choose This Product? Key Benefits

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  Instant Knockdown Power: The Cypermethrin component acts immediately upon contact, stopping the pest from feeding and damaging the crop instantly.
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  Long-Lasting Residue: Chlorpyrifos remains on the foliage for weeks, creating a protective shield that prevents re-infestation.
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  Dual Mode of Action: Attacks the insect nervous system in two different ways (Systemic & Contact), making it highly effective even against resistant pests.
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  Vapor Action Technology: The formulation creates a vapor that penetrates dense canopies to kill hidden pests (like larvae inside cotton bolls) that sprays miss.
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  Versatile Crop Protection: One solution for multiple crops including Cotton, Paddy (Rice), Brinjal, and Cabbage.

Technical Specifications

How It Works: Mode of Action

Nurocombi uses a "Double Engine" approach to destroy the insect's nervous system. It works through both Contact and Vapor action.

1. Systemic Enzyme Inhibition (Chlorpyrifos): It enters the insect body and inhibits the Acetylcholinesterase (AChE) enzyme. This causes a "cholinergic crisis," leading to paralysis.
2. Nerve Channel Modulation (Cypermethrin): It attacks the sodium channels in the nerve cells, causing the nerves to fire repeatedly without stopping. This leads to immediate hyperexcitability and knockdown.
3. Synergistic Attack: The combination ensures that even if a pest has some resistance to one chemical, the other one finishes the job.

Result: Total nervous system failure of the pest within minutes of application.

Target Crops & Pests

Dosage & Application Guide

The Golden Rule: Always follow the "Dose per Acre" for accurate results.

Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)

*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting. *Refer to the official product leaflet for exact PHI days per crop.

How to Apply: Best Practices

• Timing: Apply at the first sign of pest infestation. For Bollworms, spray during the egg-laying or early larval stage.
• Mixing: Add the required quantity of Nurocombi to a little water, stir well to form a milky white emulsion, then add the remaining water.
• Coverage: Ensure thorough coverage of the foliage, especially the undersides of leaves where pests hide.
• Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. Do not induce vomiting if swallowed (contains solvents).

Frequently Asked Questions

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. Nurocombi is a registered trademark of FMC Corporation.