Kudzu Response to Foliar Applied Herbicides
2015
Weaver, Mark A. | Hoagland, Robert E. | Boyette, C Douglas
Chemical control is presently the most cost-effective means to control kudzu, however, many of the herbicides labeled for kudzu control have substantial non-target toxicity, poor selectivity, high cost, long soil persistence, high soil mobility and / or high use rates. The present study evaluated other herbicides for efficacy in suppressing aboveground kudzu biomass in replicated field trials at three sites over two years. A single application of aminopyralid, triclopyr or metsulfuron resulted in at least 90 % kudzu suppression in the following season at two locations. After a second year of treatment those herbicides and fluroxypyr produced at least 90 % kudzu suppression, however, 100 % kudzu control was reached on only a few test plots. Glyphosate, glufosinate and mesotrione were less effective in controlling kudzu. Given the rapid growth potential of kudzu complete eradication should be pursued. None of the herbicides evaluated here could reliably achieve eradication of mature kudzu with two applications, so additional control efforts would be required.
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