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Crop Protection & Pesticides

Coragen Insecticide: Active Ingredient, Pests and Safety

Coragen is a broad-spectrum insecticide formulated with the active ingredient chlorantraniliprole (18.5% w/w SC), belonging to the anthranilic diamide chemical class. It provides long-lasting control of damaging lepidopteran chewing insect pests by binding to and activating insect ryanodine receptors, leading to rapid muscle paralysis and cessation of feeding.

Last reviewed: 10 November 2026

Active ingredient and mode of action

Chlorantraniliprole exhibits translaminar and systemic movement within plant tissues, protecting new foliage growth. Upon ingestion or contact, it selectively opens ryanodine calcium channels in pest muscle cells, resulting in uncontrolled calcium depletion, feeding cessation within hours, and eventual mortality.

  • Active ingredient: Chlorantraniliprole 18.5% SC (suspension concentrate)
  • Chemical family: Anthranilic diamide (Group 28 insecticide)
  • Target action: Selective ryanodine receptor activator with ovi-larvicidal efficacy

Target crops and major pests

  • Paddy (rice): Yellow stem borer (Scirpophaga incertulas) and leaf folder (Cnaphalocrocis medinalis).
  • Sugarcane: Early shoot borer (Chilo infuscatellus) and top borer (Scirpophaga excerptalis).
  • Maize: Fall armyworm (Spodoptera frugiperda).
  • Pulses and vegetables: Pod borer (Helicoverpa armigera) and diamondback moth (Plutella xylostella).

Application timing and safety guidelines

Spraying must follow official Central Insecticides Board & Registration Committee (CIBRC) approved label directions. Apply at early pest infestation stages using adequate water volume with a hollow cone or floodjet nozzle. Wear protective masks and gloves, and strictly observe the crop-specific pre-harvest interval (PHI) before harvesting produce.

Official source

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Central Insecticides Board & Registration Committee ↗

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Common questions

What is the active ingredient in Coragen?

The active ingredient is chlorantraniliprole 18.5% SC, an anthranilic diamide insecticide.

Which pests does Coragen control in paddy?

It primarily controls yellow stem borer and leaf folder caterpillars in paddy fields.

Why is observing the pre-harvest interval (PHI) important?

Waiting for the label-specified PHI ensures that pesticide residues on harvested produce degrade to safe, legally compliant levels.

General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.

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