Herbicide Summary - Arsenal AC

For postemergence and residual control of many grasses, broadleaf weeds, vines, and woody vegetation; used mostly for site preparation and conifer release.
Herbicide Summary - Arsenal AC - Articles


Common Name: Imazapyr- 53.1%

Formulation: Water-soluble liquid (amine salt)

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, cut surface, and root uptake

Mode of Action: Accumulates in plant meristems (growth region); inhibits the synthesis of an enzyme responsible for producing certain amino acids only found in plants

Selectivity: Conifers generally resistant

Precautions: Do not apply to areas where roots of sensitive desirable plants may extend

Application Methods: Foliar spray, cut stump, stem injection, frill girdle

Manufacturer: BASF