Herbicide Summary - Chopper

Used to control grasses, broadleaf weeds, vines, and woody vegetation for conifer crop species site preparation.
Herbicide Summary - Chopper - Articles

Updated: October 21, 2011

Common Name: Imazapyr- 27.6%

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:Chemical resistant gloves, long-sleeved shirt, long pants, shoes, and socks

Carriers: Water, penetrating oils, or seed oils

Activity: Absorbed through foliage, bark, cut surface, and roots

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, basal bark

Manufacturer: BASF

Authors

Silviculture Timber Sales Forest Ecology Forest Vegetation Management Herbicides Invasive Plants White-tailed Deer Youth Environmental Education 4-H Forestry

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