Study: governments don’t know if spraying invasive species hurts public lands
Government agencies in the U.S., Canada and Mexico can't say for sure whether the herbicides they spray on pubic lands to control invasive species are doing more harm than good, according to a new study by researchers at the University of Montana and their Canadian colleagues. The huge amount of herbicides applied by land managers every year—largely glyphosate (the key ingredient in Monsanto’s Roundup)—may in fact prevent native species from germinating.