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Crop Protection Database

Fenbuconazole

Action/Use:
  • Fungicide
Use: Protective, curative, and eradicant properties against a wide range of fungal diseases attacking blossom, foliage, fruit, and seed portions of many food and ornamental crops. Effective against Ascomycetes, Deuteromycetes, and Basidiomycetes.
Identification
Common Name(s): Fenbuconazole (ISO, BSI, draft)
Chemistry
Class: Aralkyl triazole.
Properties: Off-white. Melting point 124°-126°C. Vapor pressure 0.37 x 10-7 Torr. Soluble in common organic solvents such as ketones, esters, alcohols, and aromatic hydrocarbons. Insoluble in aliphatic hydrocarbon solvents.
Fenbuconazole
Mode of Action / Resistance Management
Chemical Group: triazoles
Taget Site: G1: C14-demethylase in sterol biosynthesis
Mode of Action: sterol biosynthesis in membranes
Action Group: FRAC Code 3
Comments / Risk Notes: Medium risk
Registration
U.S.A.: Registered in 1995.
Environmental Guidelines
Water Solubility: 2 ppm at 25°C
Safety Guidelines
Signal Word: CAUTION (Tech, 2F)
Toxicity Class: III
Toxicity: Tech: (Rat): Oral LD50 >2000. (Rabbit): Dermal >5000
Handling/storage Cautions: Store in cool, dry, well-ventilated, secure area out of reach of children and animals
Protective Clothing: Long-sleeved shirt and long pants. Waterproof gloves. Protective eyewear.
Discontinued Names:
Tenere*