Back on December 16, the “Invasive Species Weblog” reported on the ban of 140 non-native plant species from the state. I was walking around the Slocum’s River Reserve in Dartmouth yesterday, looking at the bittersweet and phragmites that are choking out native species while contributing little to the overall ecosystem. (And in addition the invasive plants, there were the sixty or so Mute Swans on Slocum’s River yesterday — talk about agressive non-native species competing with and overwhelming native species!) So I’m glad that once again Massachusetts is at the forefront of ecological action.