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Crop Protection & Pesticides

Folicur Fungicide: Tebuconazole 25.9 EC Mode and Crop Uses

Folicur is a systemic triazole fungicide containing Tebuconazole 25.9% m/m EC, formulated by Bayer for broad-spectrum management of rusts, blights, and leaf spots across field and cash crops. It acts with rapid xylem translocation to provide curative, protective, and eradicant disease control.

Last reviewed: 10 November 2026

Active chemistry and triazole mode of action

  • Contains Tebuconazole 25.9% Emulsifiable Concentrate (EC), belonging to FRAC Group 3 (Demethylation Inhibitors - DMI).
  • Inhibits ergosterol biosynthesis in fungal cell walls, halting hyphal elongation and appressorium development.
  • Absorbed rapidly into green tissues within hours, offering excellent rainfastness and systemic distribution to new foliage.

Target fungal diseases and labeled crops

  • Groundnut: Outstanding control of tikka leaf spot (Cercospora arachidicola) and rust (Puccinia arachidis).
  • Paddy (rice): Manages blast (Magnaporthe oryzae) and sheath blight (Rhizoctonia solani).
  • Chilli: Controls fruit rot / anthracnose (Colletotrichum capsici) and powdery mildew.
  • Wheat: Highly effective against yellow rust (stripe rust) and brown rust during flag leaf development.
  • Onion: Suppresses purple blotch (Alternaria porri).

Application guidelines and resistance stewardship

  • Apply at early disease symptom onset or preventively during disease-favorable humid weather.
  • Dilute at CIBRC approved label dosages with clean water, applying with hollow-cone nozzles for complete canopy coverage.
  • Rotate chemistries with multi-site contact protectants to avoid fungal resistance and observe mandated pre-harvest intervals.

Official source

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Central Insecticides Board & Registration Committee (CIBRC) ↗

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Common questions

What is the active ingredient in Folicur fungicide?

Folicur contains Tebuconazole 25.9% m/m EC, a systemic triazole fungicide.

Which major disease does Folicur control in groundnut?

It provides exceptional control of tikka disease (leaf spot) and rust in groundnut.

Is Folicur effective against wheat yellow rust?

Yes, it is widely recommended for controlling stripe rust (yellow rust) in wheat.

How quickly is Folicur absorbed by crop leaves?

It is absorbed rapidly into plant foliage, typically becoming rainfast within two hours of drying.

General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.

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