Synthetic Pyrethroid Chemistry and Pest Spectrum
Lambda-Cyhalothrin (IRAC Group 3A) acts as a potent modulator of voltage-gated sodium channels in insect nerve membranes. By delaying sodium channel closure, it triggers continuous nerve impulses, causing rapid excitation, paralysis, feeding cessation, and insect mortality.
Capsule suspension (CS) formulations encapsulate the active pyrethroid inside microscopic polymer capsules, providing prolonged residual control and reduced operator skin irritation.
- Cotton: American bollworm, spotted bollworm, pink bollworm, and jassids.
- Paddy: Yellow stem borer, leaf folder, and gall midge.
- Vegetables: Fruit borers in tomato and brinjal, thrips in chillies, and diamondback moth in cole crops.
- Rapid knockdown: Paralyzes target insects within minutes of contact or feeding ingestion.
Application Standards and Pollinator Protection
Lambda-Cyhalothrin is highly potent at low dosages per hectare, requiring accurate measuring and thorough sprayer calibration.
Applicators must follow safety buffer guidelines near water bodies, as pyrethroids are highly toxic to aquatic life and bees.
- Wear nitrile gloves, protective clothing, safety goggles, and a face mask during measuring and spraying.
- Avoid spraying during active crop flowering to protect foraging honeybees and beneficial pollinators.
- Maintain buffer zones away from rivers, fish ponds, and irrigation channels.
- Adhere strictly to label pre-harvest intervals before picking fresh vegetables or harvesting grain.
Official source
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Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What is the active ingredient in Matador insecticide?
Matador contains Lambda-Cyhalothrin, a fourth-generation broad-spectrum synthetic pyrethroid insecticide.
How quickly does Lambda-Cyhalothrin stop insect feeding?
It causes rapid paralysis upon contact or ingestion, halting insect feeding damage within minutes.
Is Matador safe to spray around fish ponds or bee colonies?
No, pyrethroids are highly toxic to fish and honeybees; never spray near open water bodies or during peak pollinator foraging.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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