Phenmedipham(restricted-use herbicide)

Trade name(s) Betanal, Spin-Aid

Manufacturer(s) Bayer CropScience

Formulation(s) 1.3 lb/gal emulsifiable concentrate

Remarks A foliar-applied selective herbicide for weed control in sugar beets, spinach, and table beets. Do not exceed 21 gal/A of spray solution on a broadcast basis. Rain within 6 hours of spraying may reduce weed kill. Betamix is phenmedipham + desmedipham; Progress is phenmedipham + desmedipham + ethofumesate.

Water solubility Less than 1 ppm

Storage conditions Liquid thickens when frozen but returns to normal at warmer temperatures. Avoid use or storage near heat or flame.

Acute toxicity LD50 - 2,000 mg/kg

Action in plant Inhibits photosynthesis.

Site of action Group 5: photosystem II inhibitor

Chemical family Phenylcarbamate

Koc Average is 2,400 mL/g