Chloridazon

Action/Use:

Herbicide

Use: Preemergence and early postemergence in beets and some ornamentals.

Identification

Common Name(s): Chloridazon (BSI, ISOE); ; Pyrazon (ANSI, WSSA); ; Chloridazone (ISO, ISOF); ; PAC (JMAF)

Chemistry

Class: Pyridazinone.

Properties: Solid, brown, approx. odorless. Melting point approx. 198�-202�C.

Mode of Action / Resistance Management

Chemical Group: Pyridazinone.

Mode of Action: Inhibition of photosynthesis at photosystem II.

Action Group: HRAC Group C1; WSSA Group 5.

Environmental Guidelines

Hazards: Fish: LC₅₀ >32-<46 mg/l (trout). Bird: LD₅₀ >2000 mg/kg b.w. (quail). Bee: Nontoxic

Water Solubility: Low, 0.034 g/100g at 20�C. Form. dispersible

Safety Guidelines

Signal Word: CAUTION

Toxicity Class: III

Toxicity: Tech (Rat): Oral LD₅₀ ca. 2200 mg/kg. Dermal LD₅₀ >2000 mg/kg

Handling/storage Cautions: Avoid contact with eyes, skin, clothing, food. Keep out of reach of children

Spill Control/cleanup: Large liquid spillage should be dammed-off and pumped into containers; soak up remainder with absorbent material and dispose of in accordance with local regulations. Solid spillage should be picked up with an industrial vacuum cleaner

Protective Clothing: Long-sleeved shirt and long pants. Chemical-resistant gloves. Protective eyewear.

Suppliers and Branded Products

Basic Producers:

BASF Corporation (Pyramin*)

Globachem nv

Kingtai Chemicals Co., Ltd.

OXON Italia S.p.A. (Betoxon*, Betozon*, Better*, Forte*)

Formulators' Trade Names:

Arysta LifeScience North America Corp. (Pyramin*)

Hektas Ticaret T.A.S. (Zoekon*)

TRAGUSA (Tratamientos Guadalquivir S.L.) (Akiles*)

United Phosphorus Ltd. (Burex*, Parador*)