Active Chemistry and Systemic Translaminar Action
Thiacloprid belongs to the second-generation chloronicotinyl insecticide group with distinct physicochemical properties.
- Active Ingredient: Thiacloprid 21.7% SC (Suspension Concentrate), classified under IRAC Group 4A (nicotinic acetylcholine receptor competitive modulators).
- Systemic Acropetal Translocation: Rapidly absorbed by plant foliage and transported upward through the xylem stream, protecting expanding shoot tips and newly developing leaves.
- Translaminar Penetration: Penetrates the leaf lamella to control sap-sucking pests feeding on the underside of foliage.
- Contact and Stomach Activity: Ingested during sap feeding or absorbed through the insect cuticle, causing rapid cessation of feeding, nervous exhaustion, and insect death.
Target Crops and Controlled Pest Spectrum
Thiacloprid is registered for controlling critical sucking pests and select beetle and borer pests across diverse agro-ecosystems.
- Cotton: Highly effective against sucking insect complexes including aphids, jassids, and thrips during vegetative and square-formation stages.
- Paddy: Controls brown plant hopper, white backed plant hopper, and stem borer populations.
- Vegetables (Chili & Tomato): Manages thrips and aphids, suppressing the spread of viral leaf curl diseases.
- Tea: Approved for controlling tea mosquito bug and thrips infestations on tender tea flushes.
- Apple and Orchards: Controls apple stem borer and aphid colonies in commercial temperate fruit orchards.
Label Directions, Safety and Resistance Management
Adhering strictly to registered CIBRC container instructions delivers high insecticidal efficacy while minimizing non-target impacts.
- Sprayer Calibration: Apply using recommended water volumes per hectare to ensure thorough wetting of foliage without excessive spray runoff.
- Pollinator Profile: While possessing lower acute toxicity to adult honeybees than older first-generation neonicotinoids, avoid direct spraying on open blooming flowers during active foraging hours.
- Pre-Harvest Interval (PHI): Comply with the statutory waiting period between the last foliar spray and harvest as printed on the product leaflet.
- Resistance Management: Alternate Thiacloprid with non-neonicotinoid chemistries such as diamides, pyrethroids, or organophosphates to prevent pest resistance.
Official source
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Central Insecticides Board & Registration Committee (CIBRC) ↗Related on KisanPe
Common questions
What is Thiacloprid 21.7% SC used for in agriculture?
Thiacloprid 21.7% SC is a systemic neonicotinoid insecticide used to control sucking pests like aphids, thrips, and jassids, as well as select borers in cotton, paddy, vegetables, and tea.
How does Thiacloprid work against insect pests?
It binds to nicotinic acetylcholine receptors in the insect nervous system, over-stimulating nerve impulses and causing rapid paralysis and death.
Is Thiacloprid safe for honeybees?
Thiacloprid has a comparatively lower acute toxicity to honeybees than first-generation neonicotinoids, but spraying directly onto open blossoms during active foraging hours must still be avoided.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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