MCPB
Action/Use:
- Herbicide
Use:
A phenoxy compound used as a selective herbicide applied postemergence for control in green peas grown for canning or freezing; spring cereals undersown with clovers, seedling clovers, maize, pastures, sainfoin.
Identification
Common Name(s): MCPB (ISO, BSI, JMAF, WSSA); ; 2,4-MCPB (France); ; 2M-4Kh-M (USSR)
Chemistry
Properties: White crystalline solid. Solubility: At 20°-25°C in ethanol 150 g/l; acetone >200 g/l.
Mode of Action / Resistance Management
Chemical Group: Phenoxy-carboxylic-acid
Mode of Action: Action like indole acetic acid (synthetic auxins)
Action Group: HRAC Group O; WSSA Group 4
Registration
Outside U.S.A.: In Australia, Canada, Europe, and So. Africa, recommended for weed control in clovers, pastures, and peanuts.
Environmental Guidelines
Hazards: Fish: LC50 75 mg/l (48 h) (rainbow trout). Bee: Nontoxic
Water Solubility: 44 ppm
Safety Guidelines
Signal Word: CAUTION
Toxicity Class: III
Toxicity: (Rat): Oral LD50 700 mg/kg. Dermal LD50 >2000 mg/kg. (Mouse): Oral LD50 800 mg/kg
Handling/storage Cautions: Store above 32°F. If frozen, warm for several days and mix
Spill Control/cleanup: Large spillages should be dammed-off and pumped into containers; soak up remainder with absorbent material and dispose of in accordance with local regulations
Suppliers and Branded Products
Basic Producers:
Nufarm Americas Inc. (Thistrol*)
Premix Products:
+ Bentazone
- Pulsar* — BASF Corporation
+ Bentazone+ MCPA
- Acumen* — BASF Corporation
+ Mefenacet+ Simetryn
- Chloa SM* — Bayer CropScience
Discontinued Names:
Bellmac Plus*
Bellmac Straight*
Can-Trol*
Vortix*
