Active ingredient and micro-encapsulation technology
Lambda-cyhalothrin is a Type-II synthetic pyrethroid (IRAC Group 3A) that modifies voltage-gated sodium channels in insect nerve membranes. In the Capsule Suspension (CS) formulation, microscopic capsules slowly release active chemical upon drying on foliage, creating a long-lasting, rainfast insecticidal barrier.
- Active constituent: Lambda-cyhalothrin 4.9% CS (capsule suspension)
- Chemical class: Synthetic pyrethroid (IRAC Group 3A)
- Controlled release: Polymer micro-capsules shield chemical from rapid UV breakdown, extending control for 10 to 14 days
Target crops and major insect pests
- Cotton: Bollworms (Helicoverpa armigera), spotted bollworm, and sucking pests like thrips and jassids.
- Paddy (rice): Stem borers, leaf folders, and gall midges.
- Vegetables (tomato, brinjal, chili): Fruit borers, shoot borers, and thrips.
- Pulses: Gram pod borer and pod borers in pigeon pea.
Safe spraying practices and pollinator care
Apply at the earliest sign of pest infestation using calibrated knapsack sprayers. While the CS formulation reduces user skin irritation, synthetic pyrethroids remain toxic to honeybees and fish. Avoid spraying during active daylight flowering hours, and strictly comply with CIBRC label-approved pre-harvest intervals.
Official source
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Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What is the benefit of a Capsule Suspension (CS) formulation?
CS formulations release active ingredient gradually, providing longer residual pest control, improved rainfastness, and reduced skin irritation.
How does Lambda-cyhalothrin kill insect pests?
It disrupts nerve membrane sodium channels, triggering rapid nerve exhaustion, paralytic knockdown, and feeding cessation.
Which major pests does Lambda-cyhalothrin 4.9% CS control in cotton?
It controls bollworm complexes (American, spotted, and pink bollworms) and sucking pests like thrips and jassids.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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