Chemical Class and Isoxazoline Mode of Action
Fluxametamide belongs to the isoxazoline class (IRAC Group 30 - GABA-gated chloride channel allosteric modulators). It acts by binding to GABA receptors in the insect peripheral and central nervous systems, blocking chloride ion channels.
This causes uncontrolled nerve hyperexcitation, rapid tremors, feeding cessation, and death in susceptible insect pests. Crucially, Fluxametamide binds to a distinct target site, conferring zero cross-resistance with legacy fiproles, organophosphates, or pyrethroids.
- Novel IRAC Group 30: Overcomes pest populations resistant to older chemical families.
- Translaminar Movement: Penetrates rapidly through the upper leaf cuticle to destroy pests feeding on lower leaf surfaces.
- Dual Spectrum Activity: Highly active against both chewing lepidopteran caterpillars and minute sucking thrips.
Target Pests and Labeled Crops
Gracia is registered under CIBRC standards for managing destructive insect complexes in high-value horticulture crops including chilli, brinjal, cabbage, and tomato.
It is especially valued by commercial chilli and vegetable growers for controlling Frankliniella and Scirtothrips species (chilli thrips), diamondback moth (Plutella xylostella), and fruit and shoot borers (Leucinodes orbonalis).
- Chilli Thrips Control: Curbs severe leaf curling, blossom dropping, and upward cupping caused by thrips.
- Diamondback Moth Defense: Controls insecticide-resistant DBM caterpillars in cabbage and cauliflower crops.
- Fruit Borer Suppression: Prevents internal larval boring in developing brinjal and tomato crops.
Field Application and IPM Rotation Practices
For optimal performance, apply Gracia at the early initiation of pest attack or when thrips populations cross the economic threshold level (ETL). Use calibrated hollow cone nozzles to generate uniform foliar coverage across both leaf surfaces.
To prolong the efficacy of the isoxazoline chemistry, integrate Gracia into a structured insecticide resistance management (IRM) window, rotating sprays with diamides or pyridinecarboxamides.
- Early Intervention: Spray during early nymphal emergence or first-instar caterpillar hatch.
- Spray Volume: Maintain adequate water volume to ensure thorough leaf canopy penetration.
- Harvest Safety: Adhere strictly to the pre-harvest interval (PHI) stipulated on the registered product packaging.
Official source
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Central Insecticides Board & Registration Committee (CIBRC) ↗Related on KisanPe
Common questions
What is the technical ingredient in Gracia insecticide?
Gracia contains Fluxametamide 10% w/w EC (Emulsifiable Concentrate), an isoxazoline-class insecticide.
How does Fluxametamide kill target insect pests?
It acts as a GABA-gated chloride channel antagonist (IRAC Group 30), inducing severe nervous hyperexcitation and paralysis in insects.
Which major pests does Gracia control in chilli and vegetables?
It controls chilli thrips, fruit borers, and diamondback moth (DBM) across vegetables including chilli, brinjal, tomato, and cabbage.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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