Active chemical nature and GABA receptor blockade
Regent contains Fipronil, an active compound belonging to the phenylpyrazole chemical class (IRAC Group 2B).
It works by blocking gamma-aminobutyric acid (GABA)-gated chloride channels in the insect central nervous system. This halts inhibitory neural transmission, leading to continuous nervous overstimulation, hyperexcitation, paralysis, and pest death upon contact or ingestion.
- Active chemical: Fipronil (formulated as 5% SC foliar suspension and 0.3% GR soil granules).
- IRAC classification: Group 2B (GABA-gated chloride channel blocker).
- Plant growth enhancement (PGE): Widely recognized for stimulating deep root elongation, productive tillering, and enhanced greening independent of pest pressure.
Target crops and approved pest spectrum
Bayer Regent is registered across major cereal, fiber, and plantation crops in India.
It is a benchmark product for managing stem borers and leaf folders in paddy, as well as early shoot borers and termites in sugarcane.
- Paddy (Rice): Stem borer, leaf folder, whorl maggot, and gall midge.
- Sugarcane: Early shoot borer (Chilo infuscatellus) and root grubs.
- Cotton: Aphids, jassids, and thrips.
- Chilli: Thrips and fruit borers.
Formulations, application methods, and safety
Regent 0.3% GR granules are broadcast into standing water or soil furrows during early vegetative growth to provide systemic root protection.
Regent 5% SC is applied as a foliar spray using clean water and hollow cone nozzles upon detecting threshold pest populations.
Observe standard chemical safety protocols and adhere to container label directions during preparation and application.
- Granular broadcast (0.3% GR): Broadcast evenly in rice fields with 3 to 5 cm standing water at 15 to 25 days after transplanting.
- Foliar spray (5% SC): Spray uniformly across foliage at label-recommended dilutions in clean water.
- Protective measures: Wear protective gloves, clean clothing, and face shield; respect statutory pre-harvest intervals.
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 ingredient in Bayer Regent?
Bayer Regent contains Fipronil, available as Regent 5% SC (liquid) and Regent 0.3% GR (granules).
What is the Plant Growth Enhancement (PGE) effect of Regent?
Fipronil stimulates crop physiological processes, promoting deeper root branching, more tillers, and greener leaves.
Which insect pests are controlled by Regent in rice?
In rice, it effectively controls yellow stem borer, leaf folder, whorl maggot, and gall midge.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
More Crop Protection & Pesticides guides
Ask Sakhi AI in your language, check live mandi prices or plan a loan with KisanPe tools.