Active Ingredient Chemistry and Dual Synergism
Lethal Gold synergizes an organophosphate (Chlorpyrifos 50%) with a synthetic pyrethroid (Cypermethrin 5% EC).
Chlorpyrifos irreversibly inhibits the acetylcholinesterase enzyme, causing continuous nerve impulse firing and acetylcholine accumulation.
Cypermethrin modulates voltage-gated sodium channels in nerve membranes, delivering immediate paralytic knockdown of feeding caterpillars.
- Formulation: 50% + 5% Emulsifiable Concentrate (EC)
- Triple action profile: Contact toxicity, stomach ingestion poison, and mild vapor fumigant action
- Penetrating vapor: Vapor action helps control hidden larvae feeding deep inside dense crop canopies and squares
Target Pests and Approved Crop Applications
Lethal Gold is registered across cotton, paddy, pulses, oilseeds, and commercial field crops.
It is deployed when pest scouting indicates that chewing and boring caterpillar populations have crossed designated economic threshold levels.
- Cotton: Controls American bollworm (Helicoverpa armigera), spotted bollworm, and Spodoptera litura
- Paddy: Yellow stem borer and leaf folder management during vegetative and reproductive stages
- Vegetables & pulses: Manages pod borers, shoot borers, and diamondback moths
Application Guidelines, Mixing, and Safety
Dilute the emulsifiable concentrate in clean water with agitation and apply using high-volume knapsack sprayers.
Because organophosphates and pyrethroids are toxic to honeybees and fish, avoid spraying during crop blooming hours or near waterways.
Applicators must wear full personal protective clothing during preparation and spraying.
- Spray timing: Apply early in the morning with high-volume knapsack or boom sprayers
- Pollinator safety: Avoid application during crop bloom when honeybees are actively foraging
- Personal protection: Wear chemical-resistant gloves, protective clothing, and eye goggles during preparation
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 chemicals are in Lethal Gold insecticide?
Lethal Gold contains Chlorpyrifos 50% + Cypermethrin 5% EC in a synergistic emulsifiable concentrate formulation.
Does Lethal Gold have fumigant action inside crop canopies?
Yes, Chlorpyrifos releases mild vapor action that penetrates dense leaf folds and squares to control concealed larvae.
What is the medical antidote for organophosphate poisoning?
Atropine sulphate, often accompanied by Pralidoxime (PAM), is the specific medical antidote administered under professional supervision.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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