The Influence of Timing and Herbicide Treatment for Chinese Privet Control (Ligustrum sinense Lour.)

Abstract

Cut stump and basal bark studies for Chinese privet (Ligustrum sinense Lour.) control were conducted in Auburn, AL. Treatments for the cut stump application consisted of: 1) 25% vol/vol of an amine formulation of triclopyr (Garlon 3A) at 90 g/L, 2) 25% vol/vol of glyphosate (Accord Concentrate) at 120 g/L, and 3) cutting only with no herbicide (the control) and basal bark treatments consisted of 1) untreated control, 2) Pathfinder II (90 g/L), 3) Garlon 4 at 5% (24 g/L), 4) Garlon 4 at 10% (48 g/L), and 5) Garlon 4 at 20% (96 g/L vol/vol). For the cut stump treatment, both herbicides were effective at controlling Chinese privet with < 12% of the stumps exhibiting any sprouting. For the basal bark application, all herbicide treatments were effective, averaging one new sprout per privet clump with a mean percent defoliation of ≥ 97%.