Trade name(s) Spike, SpraKil S-5, Tebuthiuron
Manufacturer(s) Alligare, Corteva, SSI Maxim,
Formulation(s) 80% dry flowable, 20% pellets, 5% granules
Remarks A soil-applied herbicide to control woody plants and vegetation. Its half-life in soil is 12 to 15 months in areas receiving 40 to 60 inches of annual precipitation.
Water solubility 2,300 ppm
Storage conditions Stable.
Acute toxicity LD50 - 568 mg/kg
Action in plant Symptoms suggest photosynthesis inhibition.
Site of action Group 7: photosystem II inhibitor
Chemical family Substituted urea
Koc Average is 80 mL/g, but ranges from 22-91 mL/g