blog posts Illinois study shows invasive garlic mustard becomes less aggressive over time Jun 15, 2016 1:30 pm by Science DailyIllinois in the News Share on Facebook Tweet Email Images Science Daily (June 14) - “One of the things we've seen over the last 20 to 30 years is that garlic mustard becomes less of an issue, and actually balances out over time,” says Adam Davis, a professor of crop sciences Share on Facebook Tweet Email