Chemical Profile and Mode of Action
Lambda-Cyhalothrin is a Type II synthetic pyrethroid featuring an alpha-cyano group for enhanced insecticidal potency.
It binds to voltage-gated sodium channels in insect nerve axonic membranes, preventing channel closure and causing repetitive nerve firing, rapid paralysis, and death.
- Formulation types: 5 percent EC (Emulsifiable Concentrate) and 4.9 percent CS (Capsule Suspension)
- Action routes: Fast-acting contact knockdown, ingestion toxicity, and anti-feedant behavioral repellency
- Capsule suspension benefit: CS formulations provide micro-encapsulated extended residual control with lower operator dermal irritation
Target Pests and Approved Crop Uses
Lambda-Cyhalothrin is registered across field cereals, cotton, oilseeds, and vegetables for multi-pest suppression.
It is deployed when pest scouting indicates that insect densities have surpassed designated economic threshold levels.
- Cotton: Controls spotted bollworm, pink bollworm, and thrips complexes
- Paddy: Suppresses stem borer, leaf folder, and green leafhopper outbreaks
- Vegetables and pulses: Controls fruit borers, pod borers, and shoot borers
Application Precautions and Operator Safety
Synthetic pyrethroids can cause temporary skin paresthesia (tingling sensation) if concentrated spray droplets contact bare skin.
Applicators must wear full personal protective clothing and avoid spraying during high daytime temperatures or near fish-bearing waters.
- Skin protection: Wear nitrile gloves, long-sleeved overalls, eye protection, and face respirators
- Pollinator safety: Avoid application during crop flowering hours to prevent harm to honeybees
- Aquatic hazard: Highly toxic to fish and aquatic life; never rinse equipment near waterways
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 primary mode of action of Lambda-Cyhalothrin?
It modifies sodium channels in insect nerve membranes, causing continuous nerve firing, rapid paralysis, and knockdown.
What is the difference between 5% EC and 4.9% CS formulations?
The 4.9% CS formulation uses micro-encapsulated suspension technology, providing longer residual field activity and reduced dermal irritation.
Does Lambda-Cyhalothrin control bollworms in cotton?
Yes, Lambda-Cyhalothrin is registered and widely used to control bollworm complexes in cotton fields.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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