Active chemical composition and synergistic action
Koranda 505 pairs an organophosphate with a synthetic pyrethroid to achieve enhanced insect knockdown and overcome pest resistance.
Chlorpyrifos acts as an acetylcholinesterase inhibitor causing neurotoxic overstimulation, while Cypermethrin attacks voltage-gated sodium channels in insect nerve axonic membranes.
- Chlorpyriphos (50% EC): High contact, stomach, and vapor toxicity that flushes pests out from dense crop foliage.
- Cypermethrin (5% EC): Rapid nerve paralysis delivering fast knockdown and strong anti-feeding deterrence.
- Synergistic knockdown: Delivers greater insect mortality than either active ingredient applied independently.
Target crops and approved insect pest spectrum
Koranda is registered in India for managing destructive chewing caterpillars and sucking insect pests across fiber, cereal, and pulse crops.
It is heavily relied upon by cotton and paddy farmers during peak pest infestation windows.
- Cotton: Spotted bollworm, pink bollworm, American bollworm, whiteflies, aphids, and jassids.
- Paddy (Rice): Stem borer, leaf folder, and gall midge.
- Vegetables and Pulses: Pod borers in pulses and fruit borers in brinjal and okra.
Application dilution and personal safety protocols
Apply Koranda 505 when insect populations cross economic threshold levels, mixing only with clean water at container label recommended rates.
Due to the organophosphate chemical class, applicators must follow rigorous personal hygiene and protective equipment procedures.
- Spraying technique: Use knapsack or power sprayer ensuring full wetting of foliage, stems, and fruiting branches.
- Protective clothing: Wear rubber gloves, protective goggles, vapor mask, and full-length overalls during spraying.
- Environmental precaution: Highly toxic to aquatic life; avoid spraying near fish ponds, canals, and during active bee foraging.
Official source
Check the latest rules, benefits and forms here. KisanPe is an independent platform and is not a government website.
Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What is the technical composition of Koranda 505?
Koranda 505 contains Chlorpyriphos 50% and Cypermethrin 5% in an emulsifiable concentrate (EC) formulation.
Which insect pests does Koranda 505 control in cotton?
It controls the entire bollworm complex (spotted, pink, American) as well as sucking pests like aphids, jassids, and whiteflies.
How does Koranda's vapor action help in pest management?
Its vapor action penetrates thick leaf canopies and hidden crevices, flushing out concealed larvae and borers.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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