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Herbicide Summary - Patriot®

Used for controlling and suppressing undesirable weeds, including multiflora rose, and hardwoods on sites where conifers and yellow poplars are growing or are to be planted.
Updated:
January 26, 2023

Common Name: Metsulfuron methyl-60%

Formulation: Water-dispersible granules

Signal Word: Caution

Toxicity: Practically nontoxic; oral LD (50): >5,000 mg/kg

Use Classification: General use

Minimum Required Personal Protective Equipment: Long-sleeved shirt, long pants, shoes, and socks

Carriers: Water

Activity: Absorbed through foliage and, to a lesser degree, through root uptake

Mode of Action: Inhibits plant amino-acid production; controls weeds primarily by post-emergence activity, although some pre-emergence activity is present

Selectivity: Nonselective, broad-spectrum control; some native grasses tolerant

Precautions: Nontarget plants may be adversely affected at very low levels from contact with drift, runoff, or root systems

Application Methods: Foliar spray, basal soil

Manufacturer: Nufarm

David R. Jackson
Former Extension Educator, Renewable Natural Resources
Pennsylvania State University