Key facts
From KisanPe's verified data. Confirm prices and doses with the seller, label or official source before acting.
- Category
- Insecticide
- Mode of action
- Contact & Ingestion
- Target crops
- Paddy, Chilly, Cotton, Sugarcane
- Target pests
- Stem Borer, Brown Plant Hopper, Green Leaf Hopper, Root Borer
Chemical classification and GABA receptor inhibition
Fipronil represents the phenylpyrazole class, featuring a distinct neurotoxic action against destructive soil and foliage pests.
- Inhibits GABA-gated chloride ion channels (IRAC Group 2B), preventing inhibitory neurotransmission.
- Causes excessive neuronal excitation, convulsions, uncoordinated motor movements, and rapid insect mortality.
- Dual contact and stomach poison action with acropetal xylem systemic translocation through roots.
- High concentration water-dispersible granule (80% WG) formulation that dissolves cleanly without nozzle clogging.
Target insect pests and registered crop applications
Fipronil 80% WG is specifically approved for critical pest complexes in irrigated rice and sugarcane systems.
- Rice (Paddy): Long-lasting control of yellow stem borer (Scirpophaga incertulas) and leaf folder (Cnaphalocrocis medinalis).
- Rice application timing: Applied at early tillering stage either as a foliar spray or mixed with dry sand broadcast in standing water.
- Sugarcane: Management of early shoot borer (Chilo infuscatellus) and root borers.
- Termite management: Protects crop root zones and setts from subterranean termite tunneling.
Phytotonic effect, root proliferation, and safety precautions
Fipronil is widely recognized for its beneficial phytotonic effect, stimulating enhanced root branching, higher chlorophyll synthesis, and sturdier tillering in treated rice crops. Because Fipronil is highly toxic to aquatic life and foraging honeybees, do not drain treated paddy water into public watercourses, and avoid spraying during active bee foraging hours. Applicators must wear standard protective equipment.
Official source
Check the latest rules, benefits and forms here. KisanPe is an independent platform and is not a government website.
Central Insecticides Board and Registration Committee ↗Related on KisanPe
Common questions
What is the technical chemical family of Fipronil 80% WG?
Fipronil belongs to the phenylpyrazole chemical class (IRAC Group 2B), acting as an antagonist of GABA-gated chloride channels.
What is the phytotonic effect observed in rice after Fipronil application?
Fipronil triggers physiological plant responses resulting in deeper root systems, greener leaves, more productive tillers, and improved crop vigor.
Which major pests are targeted by Fipronil 80% WG in rice paddies?
It primarily targets the yellow stem borer (causing deadhearts and whiteheads) and the rice leaf folder.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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