Anthranilic Diamide Chemistry and Spectrum
Powered by Chlorantraniliprole (Rynaxypyr, IRAC Group 28), Coragen activates ryanodine receptors in insect muscle cells. This triggers an uncontrolled release of internal calcium stores, leading to rapid muscle paralysis, cessation of feeding within hours, and insect mortality.
Its high potency at low doses and systemic xylem mobility make it a staple in modern integrated crop protection programs.
- Sugarcane: Early shoot borer and top borer during tillering stages.
- Paddy: Yellow stem borer and leaf folder throughout vegetative and reproductive phases.
- Pulses and vegetables: Pod borer (Helicoverpa armigera) in chickpea and pigeonpea; fruit borer in tomato.
- Favorable profile: Demonstrates low toxicity toward beneficial arthropods, parasitoids, and earthworms when used as directed.
Application Methodology and Safe Handling
Effective borer control requires precise timing. In sugarcane, application is typically performed as a directed drench along the cane setts or root zone, whereas foliar spray is utilized in paddy and pulses.
Farmers must calibrate knapsack sprayers to deliver the exact recommended volume of water for thorough crop wash.
- Apply when pest scouting reveals egg masses or first-instar larvae before larvae tunnel into plant stems.
- Maintain adequate soil moisture when performing soil root drenching in sugarcane.
- Observe pre-harvest intervals (PHI) stipulated on the registered label prior to crop harvest.
Official source
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Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What is the active ingredient in Coragen?
Coragen contains Chlorantraniliprole 18.5% SC, an anthranilic diamide insecticide targeting insect ryanodine receptors.
How quickly does Coragen stop pest feeding?
Pest larvae stop feeding within minutes to hours after ingestion or contact due to muscle paralysis, preventing further crop tissue injury.
Is Coragen effective against sugarcane early shoot borer?
Yes, directed soil application or early foliar drenching provides systemic root uptake and long-term protection against early shoot borer.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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