Integrated Kudzu Control on Mississippi Roadsides.

摘要

Kuzdu is among the top weed threats in Mississippi and is found on may roadsides and right-of-way. The present research evaluated the efficacy of several previously undocumented tools for the eradication of kudzu, including the use of alternative herbicides, the use of the pathogen Myrothecium verrucaria and the integration of multiple methods to bring about more rapid kudzu eradication. Field trials with herbicides were conducted in triplicate at three locations over two years and demonstrated 95% or better control in at least one location with Chaparral, Escort, Milestone, RemedyUltra, Streamline, Transline and Vista, as measured 11 months after initial treatment. Integrated treatment programs, including various combinations of: broadcast application of Milestone VM+; applications of the bioherbicide Myrothecium verrucaria; mowing and spot treatments with Vista and Escort; and planting of switchgrass were all very effective in controlling kudzu. Zero kudzu was detected in many of these treatment plots the following season, and plots planted in switchgrass were well-established. In a supplemental greenhouse-based experiment, nine herbicides that might be used to aid in transitioning a site from kudzu to native perennial grasses were tested for compatibility with seven grass species. While there were many important specific herbicide-species interactions, many of the kudzu herbicides were well-tolerated by the grasses.