An important topic to prairies is discussed here. This is great information!
Originally posted on The Prairie Ecologist:
Many of the prairies we manage have pretty degraded plant communities, characterized by low plant diversity and dominance by a few grass species – including the invasive Kentucky bluegrass (Poa pratensis). Our primary objective for these prairies is to increase plant diversity, which, in turn, bolsters ecological resilience and improves habitat quality for a wide range of prairie species. Because bluegrass is so pervasive in our prairies, we’ve had to modify our objectives and strategies from those we use to address most other invasive species.
When attacking invasive plant species, a common strategy is to contain, and (hopefully) shrink, patches of invasive plants in order to protect plant diversity in non-invaded areas. In the case of Kentucky bluegrass, however, we have to take a different approach because the species already spans the entire prairie. Kentucky bluegrass acts like a thick blanket of interwoven stems, roots, and rhizomes - smothering most other plant species beneath it. Because our goal is to increase plant diversity, we want to make that blanket thin and porous enough that a wide variety of other plant species can grow up through it.