Invasive Microstegium (Japanese Stiltgrass) May Reduce Tick Populations

A study in the Journal of Medical Entomology found that Microstegium vimineum (Japanese stiltgrass) invasion correlates with higher tick mortality for American dog ticks and lone star ticks. The dense grass may alter microclimate or harbor predators. However, field observations in Tennessee show both ticks and stiltgrass coexisting heavily.

While the research suggests a potential ecological benefit, stiltgrass remains a highly invasive weed that displaces native plants. Don't encourage it for tick control—use proven methods like habitat management and personal protection instead.