CHINESE PRIVET CONTROL WITH CUT STUMP AND BASAL BARK HERBICIDE TREATMENTS
ALABAMA COOPERATIVE EXTENSION SYSTEM
Chinese privet (Ligustrum sinense) is one of the most invasive shrubs in the southeastern United States. It reproduces by seed and lateral root sprouts and is a strong stump sprouter following cutting. Despite its notoriety, information concerning the effectiveness of herbicide approaches including cut stump and basal bark treatment is lacking. Our objective was to evaluate these methods for Chinese privet control. Studies were conducted from 2008 to 2011 in mixed hardwood stands infested with Chinese privet near Auburn, Alabama. For the cut stump study, glyphosate (Accord Concentrate at 25% v/v) and triclopyr amine (Garlon 3A at 25% v/v) were compared to cutting alone at April and November timings. For the basal bark treatment study, triclopyr ester (Garlon 4 at 5, 10, and 20% v/v and Pathfinder II at 100% v/v) were compared to untreated control plants at January and March timings. Chinese privet mortality and stump and lateral root sprouts were quantified at 6, 12 and 18 months after treatment (MAT). Canopy defoliation was also estimated in the basal bark study. For the cut stump study, both glyphosate and triclopyr amine provided >92% control across timings. However, control was better with glyphosate than triclopyr at the November application timing. For basal bark treatment studies, the lowest rate of triclopyr resulted in high levels of canopy defoliation and few basal sprouts. However, percent privet kill was better for the higher triclopyr rates. These studies indicate that both cut stump and basal bark treatment are effective options for Chinese privet control.
Poster has NOT been presented at any previous NACAA AM/PIC
This poster is being submitted for judging. It will be displayed at the AM/PIC if not selected as a State winner. The abstract will be published in the proceedings.
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Authors: S.F. Enloe, Loewenstein Nancy
Enloe, S. EXTENSION SPECIALIST, ALABAMA COOPERATIVE EXTENSION SYSTEM, Alabama, 36849
Nancy, L. EXTENSION SPECIALIST, ALABAMA COOPERATIVE EXTENSION SYSTEM, Alabama, 36849