Tebuconazole

Nomenclature

Common name: Tebuconazole (BSI, draft E-ISO)
IUPAC name: (RS)-1-p-chlorophenyl-4,4-dimethyl-3-(1H-1, 2, 4-triazol-1-ylmethyl)pentan-3-ol
Chemical abstracts name:(?-a-[2-(4-chlorophenyl)ethyl]-a-(1,1-dimethylethyl)-1H-1, 2,4-triazole-1-ethanol
Other names: Fenetrazole*;terbuconazole*; terbutrazole*; ethyltrianol*
CAS RN: [107534-96-3]
EEC no. ELINCS: 403-640-2

Applications

Biochemistry: It is a steroid demethylation (ergosterol biosynthesis) inhibitor.
Mode of action: Systemic fungicidewith protective, curative, and eradicant action. Rapidly absorbed into thevegetative parts of the plant, with translocation principally acropetally.
Uses: As a seed dressing, tebuconazole is effective againstvarious smut and bunt diseases of cereals such as Tilletia spp., Ustilago spp.,and Urocystis spp., also against Septoria nodorum (seed-borne), at 1-3 g/dt seed; and Sphacelotheca reiliana inmaize, at 7.5 g/dtseed. As a spray, tebuconazole controls numerous pathogens in various cropsincluding: rust species (Puccinia spp.) at 125-250 g/ha, powdery mildew (Erysiphe graminis) at 200-250 g/ha, scald (Rhynchosporium secalis) at200-312 g/ha, Septoria spp. at200-250 g/ha, Pyrenophora spp. at200-312 g/ha, Cochliobolussativus at 150-200 g/ha, andhead scab (Fusarium spp.) at 188-250 g/ha,in cereals; leaf spots (Mycosphaerella spp.) at 125-250 g/ha, leaf rust (Puccinia arachidis) at 125 g/ha, and Sclerotium rolfsii at 200-250 g/ha, in peanuts; black leaf streak(Mycosphaerella fijiensis) at 100 g/ha,in bananas; stem rot (Sclerotinia sclerotiorum) at 250-375 g/ha, Alternaria spp. at 150-250 g/ha, stem canker (Leptosphaeriamaculans) at 250 g/ha, andPyrenopeziza brassicae at 125-250 g/ha,in oilseed rape; blister blight (Exobasidium vexans) at 25 g/ha, in tea; Phakopsora pachyrhizi at 100-150 g/ha, in soya beans; Monilinia spp. at12.5-18.8 g/100 l, powdery mildew (Podosphaeraleucotricha) at 10.0-12.5 g/100 l, Sphaerotheca pannosa at 12.5-18.8 g/100 l, scab (Venturia spp.) at 7.5-10.0 g/100 l, white rot in apples (Botryosphaeria dothidea)at 25 g/100 l, in pome and stone fruit; powdery mildew(Uncinula necator) at 100 g/ha,in grapevines; rust (Hemileia vastatrix) at 125-250 g/ha, berry spot disease (Cercospora coffeicola)at 188-250 g/ha, andAmerican leaf disease (Mycena citricolor) at 125-188 g/ha, in coffee; white rot (Sclerotium cepivorum)at 250-375 g/ha, andpurple blotch (Alternaria porri) at 125-250 g/ha, in bulb vegetables; leaf spot(Phaeoisariopsis griseola) at 250 g/ha,in beans; early blight (Alternaria solani) at 150-200 g/ha, in tomatoes and potatoes.
Phytotoxicity: Good plantcompatibility in most crops with any formulation, and achieved in moresensitive crops by appropriate formulations, e.g. WP, WG or SC.
Formulation types: DS; EC; ES; EW;FS; GF; SC; SE; WG; WP; WS.

As a professional tebuconazole manufacturer based in China, Eastchem provides a broadrange of fungicides, including hexaconazole, tricyclazole, mancozeb,carbendazim, and others. Insecticides such as trichlorfon, acephate,imidacloprid, and acetamiprid are also available.