Herbicide Summary - Garlon 3A

Controls woody plants, broadleaf weeds, and vines; broadcast treatments for site preparation and release of spruce, fir, red pine, and white pine.
Herbicide Summary - Garlon 3A - Articles


Common Name: Triclopyr- 44.4%

Formulation: Water-soluble liquid (amine salt)

Signal Word: Danger

Toxicity: Slightly toxic; oral LD (50): 2,574 mg/kg for males, 1,847 mg/kg for females

Use Classification: General Use

Minimum Required Personal Protective Equipment: Long-sleeved shirt, long pants, shoes, socks, protective eyewear, and chemical-resistant gloves

Carriers: Water

Activity: Absorbed through foliage or cut surface

Mode of Action: Acts as a systemic herbicide that deregulates plant growth metabolic pathways; accumulates in the plant meristems (growth regions), causing uneven cell division and growth

Selectivity: Little or no impact on grasses

Precautions: Can cause irreversible eye damage; use eye protection when mixing and handling concentrate; do not use in areas with permeable soils or shallow water tables; groundwater contamination may result

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

Manufacturer: Dow AgroSciences