Hymexazol

Action/Use:

Fungicide

Use: As a soil drench, soil incorporation, or seed pelleting and dressing for damping off caused by Aphanomyces, Corticium, Fusarium, Pythium, etc. Agent to improve root growing and cold resistance of crop seedling.

Identification

Common Name(s): Hymexazol (ISO, BSI); ; Hydroxy Isoxazole (JMAF)

Chemistry

Properties: Colorless crystals. Melting point 86-87� C. Vapor pressure 1 x 10^-3 mm/Hg (25� C). Readily soluble in most organic solvents.

Mode of Action / Resistance Management

Chemical Group: Isoxazole

Taget Site: A3: DNA/.RNA synthesis (proposed)

Mode of Action: Nucleic acid synthesis

Action Group: FRAC Code 32

Registration

U.S.A.: Seed treatment on sugar beets.

Outside U.S.A.: Seed treatment for sugar beets. In Asian countries for rice, sugar beets, vegetables, etc. In European countries for ornamentals, sugar beets, vegetables, etc. In Japan for cucumber, forest tree seedlings, ornamentals, paddy rice, sugar beets, and watermelon.

Environmental Guidelines

Water Solubility: 8.5% w/v at 25� C (48 h)

Hazards: Fish: LC₅₀ 165 mg/l. (48 h) (carp)

Safety Guidelines

Signal Word: CAUTION

Toxicity Class: III

Toxicity: (Rat): Oral LD₅₀ 4678 mg/kg (male); 3909 mg/kg (female). Dermal LD₅₀ >10,000 mg/kg. (Mouse): Oral 2148 mg/kg (male); 1968 mg/kg (female)

Suppliers and Branded Products

Basic Producers:

Agro-Care Chemical Industry Group Limited

Anhui Fengle Agrochemical Co., Ltd.

CAC Shanghai Chemical Co., Ltd.