Active Ingredient Profile and Ryanodine Receptor Mode of Action
Coragen contains Chlorantraniliprole (18.5% SC), belonging to the anthranilic diamide chemical class (IRAC Group 28).
It binds selectively to insect ryanodine receptors, triggering an uncontrolled release of internal calcium stores in skeletal and cardiac muscle tissues.
Treated larvae suffer muscle paralysis, immediate feeding cessation within minutes, lethargy, and regurgitation, resulting in mortality within two to four days.
- Formulation: 18.5 percent Suspension Concentrate (SC)
- Fast feeding cessation: Halts crop defoliation within minutes of ingestion or contact
- Ovi-larvicidal action: Controls insect eggs upon contact and kills neonate larvae as they hatch from the eggshell
- Beneficial safety: Highly selective with minimal impact on honeybees, predatory spiders, and parasitoid wasps
Target Pests and Approved Crop Applications
Coragen is registered across major cereal, pulse, sugarcane, and horticultural crops for managing destructive boring caterpillars.
Its translaminar and systemic xylem movement provides extended residual protection against internal tunneling larvae.
- Paddy: Yellow stem borer (Scirpophaga incertulas) and leaf folder (Cnaphalocrocis medinalis)
- Sugarcane: Early shoot borer and top borer during formative tillering phases
- Pulses & vegetables: Gram pod borer (Helicoverpa armigera) and diamondback moth (Plutella xylostella)
- Maize: Highly effective against invasive Fall Armyworm (Spodoptera frugiperda)
Application Practices, Timing, and Safety Guidelines
Apply Coragen preventively at egg hatching or early larval instars for maximum biological efficacy and minimal crop injury.
Commercial packaging ranges from small ten-milliliter bottles for garden plots up to larger containers for commercial acreage.
Dilute in clean water and apply with high-volume knapsack sprayers fitted with hollow cone nozzles, observing pre-harvest intervals.
- Early intervention: Spray when monitoring reveals egg masses or initial pinhole leaf damage
- Rainfastness: Penetrates leaf cuticles rapidly, delivering dependable rainfastness within two hours
- Safety apparel: Wear protective clothing, rubber gloves, and an approved dust respirator during mixing
Official source
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Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What is the active chemical in FMC Coragen?
Coragen contains Chlorantraniliprole 18.5% SC (Rynaxypyr), an anthranilic diamide insecticide.
How quickly does Coragen stop caterpillar damage on crops?
Larval muscle paralysis halts feeding within 7 minutes of ingestion, stopping crop injury immediately even if the caterpillar takes 2 to 4 days to die.
Does Coragen control stem borer in paddy and sugarcane?
Yes, Coragen is one of the premier registered insecticides for controlling yellow stem borer in rice and early shoot borer in sugarcane.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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