The article also make the important point that you do not have to be a scientist to help halt the spread of invasives. All people who love nature can learn to identify the invaders and report them to the appropriate environmental and agricultural agencies. Careful choices in our gardens and landscapes can reduce the spread of invaders. We should do what we can to preserve natural spaces.
I found it interesting that the invasive reed turned out to be a different race of a native plant of the same species that had not caused problems. That could also be why it was not noticed earlier.
Likewise, the Phalaris arundinacea that is all over may have been preceded by a native race that behaved differently.
