Chemical Class and Neurological Mode of Action
Bifenthrin is a non-systemic Type-I synthetic pyrethroid classified under Insecticide Resistance Action Committee (IRAC) Group 3A. It functions as a voltage-gated sodium channel modulator in insect nerve axons.
By keeping sodium channels open for prolonged periods, Bifenthrin prevents the repolarization of nerve cell membranes. This causes continuous, repetitive nerve discharges, extreme muscle twitching, rapid paralysis (knockdown), and pest death upon contact or ingestion.
- Active Molecule: Bifenthrin (available as 10% EC and 8% SC formulations).
- IRAC Group 3A: Synthetic pyrethroid sodium channel modulator.
- Non-Systemic Contact Toxicity: Rapid lethal contact action and stomach poison activity upon ingestion.
- Low Soil Mobility: Binds strongly to soil organic matter, creating an extremely durable residual chemical barrier.
Agricultural and Termite Management Applications
Bifenthrin is an industry-leading termiticide used in both agriculture and civil construction. In sugarcane, it is applied directly onto seed setts in the open furrow before soil covering to prevent subterranean termites (Odontotermes obesus) from destroying eye buds, ensuring uniform germination.
In field crops, Bifenthrin provides outstanding foliar control against bollworms and whiteflies in cotton, stem borers in rice and maize, and red spider mites and thrips in tea plantations, offering reliable residual crop protection.
- Sugarcane Sett Treatment: Sprayed over setts in planting furrows to protect buds from subterranean termite attack.
- Structural Termite Barrier: Applied around building foundations and soil trenches to establish a long-lasting termite exclusion zone.
- Cotton Bollworms & Whiteflies: Controls bollworm caterpillars and suppresses sucking insect complexes.
- Tea Garden Acaricide: Effectively suppresses red spider mites, looper caterpillars, and thrips in tea bushes.
Application Guidelines, Aquatic Safety and Stewardship
For soil termiticide application, dilute Bifenthrin thoroughly in clean water and apply using a coarse spray nozzle directly along planting furrows or foundation trenches to ensure complete soil saturation.
Because synthetic pyrethroids are highly toxic to aquatic life (fish and aquatic invertebrates) and beneficial pollinators like honeybees, never apply Bifenthrin near water bodies, aquaculture ponds, or during active crop bloom. Observe CIBRC-registered pre-harvest intervals and wear personal protective equipment.
- Soil Saturation: Ensure even drenching along furrows so that treated soil forms an impenetrable barrier.
- Aquatic Hazard: Highly toxic to fish; prevent spray drift and drainage runoff into canals or farm ponds.
- Pollinator Protection: Avoid foliar applications during active flowering and daytime bee foraging hours.
- Protective Gear: Wear impermeable gloves, respirators, and safety eye goggles during chemical handling.
Official source
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Central Insecticides Board and Registration Committee (CIBRC) ↗Related on KisanPe
Common questions
What is the mode of action of Bifenthrin insecticide?
Bifenthrin is a synthetic pyrethroid (IRAC Group 3A) that keeps sodium channels open in insect nerve membranes, causing continuous nerve firing, paralysis, and death.
How is Bifenthrin used for termite control in sugarcane?
Bifenthrin is sprayed over sugarcane setts placed in open furrows before covering with soil, establishing a chemical barrier that protects buds from termite damage.
Why is Bifenthrin an effective barrier against subterranean termites?
Bifenthrin binds strongly to soil particles and does not leach easily, providing a long-lasting toxic barrier that repels and kills foraging termites.
Where can farmers find certified dosage recommendations for Bifenthrin?
Approved application rates, crops, and safety intervals are detailed on the product container leaflet and verified on the official CIBRC portal.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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