Garlon Duo is a foliar-applied herbicide for long-term control of annual and perennial broadleaf weeds (herbaceous and woody/semi-woody) in non-cultivated areas (vegetation-covered surfaces that are not used for cultivation and are subject to minimal, non-intensive management, such as airports, railway embankments, roadsides, industrial areas, energy production areas, firebreaks, recreational areas, etc.). Both active ingredients triclopyr & aminopyralid belong to the pyridine carboxylic acid herbicide group. They are quickly absorbed by plants and translocated to accumulate in the meristematic tissue. In sensitive species, both active ingredients cause auxin-like symptoms. These include stem elongation, premature aging, and ultimately growth cessation and rapid necrosis.