Active Ingredient and Mode of Action
Regent features Fipronil as its active chemical component, available in granule (0.3 percent GR) or suspension concentrate (5 percent SC) formulations.
It works by blocking GABA-regulated chloride channels in insect nerve synapses, producing uncontrollable excitation, paralysis, and death.
- Chemical family: Phenylpyrazole insecticide
- Unique mechanism: Effective against insects resistant or tolerant to organophosphates and synthetic pyrethroids
- Plant tonic effect: Field studies show improved root development, vigorous tillering, and enhanced greening in rice and sugarcane
Target Pests and Application Methods
Regent is extensively utilized in cereal and cash crops for controlling subterranean and foliar insect pests.
Soil application of granules during transplanting or sowing provides long-lasting systemic protection against soil-dwelling insects.
- Paddy: Controls yellow stem borer, leaf folder, and root weevils during early vegetative stages
- Sugarcane: Suppresses early shoot borer, top borer, and subterranean termites
- Soil application: Granules are broadcast evenly and incorporated into moist soil before or shortly after planting
Best Practices and Environmental Safety
Adequate soil moisture is critical when broadcasting Regent granules to ensure dissolution and root uptake.
Growers must prevent granule contamination of aquatic water bodies, fish ponds, and drainage channels due to high toxicity to aquatic life.
- Water management: Maintain shallow standing water in paddy fields for several days after broadcasting granules
- Aquatic safety: Do not apply near aquaculture ponds or discharge field runoff into water bodies
- Storage: Store original containers in dry, ventilated, and child-inaccessible storage sheds
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 active chemical in Regent insecticide?
Regent contains Fipronil, formulated commonly as 5% SC for spraying or 0.3% GR for soil broadcasting.
How does Regent control paddy stem borer?
Fipronil is absorbed systemically by plant roots and shoots, poisoning stem borer larvae when they feed inside the tillers.
Does Fipronil promote plant growth?
Fipronil has a recognized physiological effect that often promotes deeper root elongation and enhanced tiller vigor in crops like rice.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
More Crop Protection & Pesticides guides
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