Q. What makes a plant invasive, and why are they considered harmful? Whenever we hear about invasive species, we usually think about pest insects or arthropods such as Argentine ants or fruit flies.

All these examples were expensive and still require ongoing efforts and expenditures. Prevention, of course, remains the most ...

Q: I saw some wildflowers on a trail last spring that I identified as Star-of-Bethlehem, which I read is not native and sold as a flower bulb for fall planting. I didn’t realize flower bulbs could ...

Only collaboration at scale, across sectors and geographies, can turn the tide on invasive species, which are a growing ...