Active technical content and neurotoxic mode of action
Meothrin contains Fenpropathrin, belonging to the synthetic pyrethroid class (IRAC Group 3A).
Key biochemical properties:
- Active ingredient: Fenpropathrin 30% Emulsifiable Concentrate (EC).
- Sodium channel modulation: Keeps voltage-gated sodium channels open in insect nerve cell membranes, triggering repetitive nerve impulses, paralysis, and rapid knockdown.
- Dual insecticidal and miticidal action: Uniquely effective against both lepidopteran insects and phytophagous spider mites.
- Repellent action: Exerts strong behavioral repellency, preventing adult moths and mites from landing and ovipositing on treated foliage.
- Strong rainfastness: Oil-soluble formulation adheres tenaciously to waxy leaf surfaces, resisting rain wash-off once dried.
Registered crops and target pest spectrum
Meothrin is approved by the Central Insecticides Board for demanding pest complexes:
Approved target pests:
- Cotton: Pink bollworm, American bollworm, spotted bollworm, and whitefly suppression.
- Chilli: Yellow mites (Polyphagotarsonemus latus), thrips, and fruit borer.
- Tea: Red spider mite (Oligonychus coffeae), scarlet mite, and tea mosquito bug (Helopeltis theivora).
- Brinjal and Okra: Shoot and fruit borer, jassids, and red spider mites.
Application guidance, dosage and safety
Apply Meothrin at registered CIBRC label rates (typically 100 to 150 ml per acre in 200 litres of water for field crops) at early pest emergence. Ensure thorough spray coverage over both upper and lower leaf surfaces. Applicators should wear rubber gloves, goggles, and face masks during spraying, avoid spraying near fish ponds or waterways, and strictly observe recommended harvest waiting periods.
Official source
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Central Insecticides Board & Registration Committee (CIBRC) ↗Related on KisanPe
Common questions
What is the active technical ingredient in Meothrin?
Meothrin contains Fenpropathrin 30% EC, a synthetic pyrethroid insecticide and acaricide.
Can Meothrin control spider mites in chilli and tea?
Yes, Fenpropathrin has potent acaricidal action, making it highly effective against red spider mites and yellow mites.
How does Meothrin deter adult insect pests?
It possesses strong repellent properties that deter adult moths and mites from settling and laying eggs on treated crops.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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