MCPA

Trade name(s) Many

Manufacturer(s) Albaugh, Loveland Products

Formulation(s) 2 and 4 lb/gal soluble and emulsifiable concentrates formulated as amine salts, sodium salts, and esters.

Remarks A postemergence, selective, translocated phenoxy herbicide. Material is less phytotoxic to some crops.

Water solubility 825 ppm

Storage conditions Amine formulations are relatively stable, but esters depend on emulsifying system. Read each product label carefully.

Acute toxicity LD50 - 800 mg/kg

Action in plant Mimics natural plant hormones.

Site of action Group 4: synthetic auxin

Chemical family Phenoxy acetic acid

Koc Average is 110 mL/g for the acid, 1000 mL/g (estimated) for the butoxy ethyl and isooctyl esters, and 20 mL/g (estimated) for the dimethylamine salt