Chemical properties and biological mode of action
- FRAC Group 3 triazole: Belongs to the Demethylation Inhibitor (DMI) class, blocking C14-demethylase enzymes during fungal ergosterol synthesis.
- Systemic movement: Rapidly absorbed by plant cuticle and translocated acropetally via the xylem stream, protecting emerging shoots.
- Multi-action profile: Delivers protective action before infection, curative arrest of early fungal mycelia, and anti-sporulant reduction of disease spread.
CIBRC approved target crops and diseases
Approved in India for Yellow rust (Puccinia striiformis), Brown rust (Puccinia triticina), and Karnal bunt in wheat; sheath blight (Rhizoctonia solani) in rice; tikka disease (Cercospora arachidicola) in groundnut; blister blight (Exobasidium vexans) in tea; and Sigatoka leaf spot in banana.
Application timing and anti-resistance strategy
- Apply at the earliest sign of disease or when weather forecasts predict extended periods of high humidity and moderate temperatures.
- Rotate with multi-site contact protectants like Mancozeb or Copper Oxychloride to prevent fungal resistance.
- Observe the mandatory crop-specific Pre-Harvest Interval (PHI) printed on the CIBRC label before harvest.
Official source
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Directorate of Plant Protection, Quarantine & Storage (CIBRC) ↗Related on KisanPe
Common questions
What fungal diseases does Propiconazole control in wheat crops?
It provides exceptional control of stripe rust (yellow rust), leaf rust (brown rust), and Karnal bunt in wheat.
What is the standard commercial formulation of Propiconazole?
It is predominantly formulated and sold as an Emulsifiable Concentrate containing 25% active ingredient (Propiconazole 25% EC).
Can Propiconazole be applied through tractor-mounted boom sprayers?
Yes, it is suitable for knapsack, power, and tractor-mounted sprayers using hollow-cone or fine flat-fan nozzles for uniform leaf coverage.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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