State seeing success over Palmer amaranth
Several keys to successful eradication of the invasive weed, according to the article
ST. PAUL — A newly published article highlights the successful work against Palmer amaranth in Minnesota. The article “Timeline of Palmer amaranth invasion and eradication in Minnesota” is included in Weed Technology, a publication of the Weed Science Society of America.
Palmer amaranth, first discovered in Minnesota in 2016, is a noxious weed and prohibited weed seed in the state. Left uncontrolled, a single female Palmer amaranth plant typically produces 100,000 to 500,000 seeds. It is resistant to multiple herbicides, can cause substantial yield losses, and greatly increase weed management costs in soybeans and corn.
The article highlights the work of the Minnesota Department of Agriculture, University of Minnesota Extension, farmers, and other partners to identify the weed in fields, determine how it got to Minnesota, and implement strategies to eliminate infestations. To date, Palmer amaranth has been found in nine counties. However, most of the sites have been successfully eradicated and the remaining are being closely monitored.
There are several keys to successful eradication of the invasive weed, according to the article. First, a robust state noxious weed program, like the MDA’s, is critical, and it needs appropriate funding and an independent advisory committee. Second, support is needed from the legislative and executive branches and commodity groups and farmers. Finally, continued success is more likely if surrounding states are collaborating on eradication.