Active ingredient Especially harmful

Tebuconazole

Description

Tebuconazole is a highly effective active ingredient belonging to the triazole chemical class. It is widely utilized in modern agriculture as a systemic fungicide, known for its strong curative, preventative, and eradicant properties, as well as its secondary effects as a plant growth regulator.

The mechanism of action involves the inhibition of ergosterol biosynthesis in fungal cells. By blocking the demethylation process, Tebuconazole effectively disrupts the structural integrity of fungal cell membranes, leading to the rapid cessation of pathogen growth and eventual death. Its systemic properties ensure that the compound is distributed throughout the plant tissues.

It is primarily used for the management of various diseases, including rusts, powdery mildew, leaf spot, Fusarium blight, and smut. Crops commonly treated with this compound include wheat, barley, rapeseed, corn, grapes, and various fruit trees. It serves as both a foliar spray and a seed treatment agent.

Regarding its application, farmers often leverage Tebuconazole's ability to act as a growth regulator. In oilseed rape, for instance, it is applied to regulate stem height, which improves crop architecture, increases winter hardiness, and minimizes lodging. Precision in timing and dosage is critical to avoid potential growth inhibition under stressful environmental conditions.

  • Excellent systemic uptake and translocation.
  • Long-lasting protective residual activity.
  • Dual function as a fungicide and growth regulator.
  • Broad compatibility with other crop protection products.

Safety precautions are essential when handling this chemical. Operators must wear appropriate personal protective equipment (PPE), including gloves, respiratory protection, and eye shields. While Tebuconazole has a favorable toxicity profile for mammals, it must be used responsibly to prevent runoff into aquatic ecosystems and to protect pollinator populations. Always adhere to local pre-harvest interval (PHI) regulations.

Regulatory

Status in the European Union

Approved in the EU

CAS number
107534-96-3
Approved from
01.09.2009
Approval until
15.08.2026
ADI
0.03 mg/kg bw/day
ARfD
0.03 mg/kg bw
AOEL
0.03 mg/kg bw/day
Hazard classification (CLP)
Acute Tox. 4 - H302Aquatic Acute 1 - H400Aquatic Chronic 1 - H410Repr. 2 - H361d

Regulatory status data: EU Pesticides Database © European Union, CC BY 4.0. EU status is for reference only and does not replace national registration in your country.

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