Annual Bluegrass Propagation (IMAGE) University of Tennessee Institute of Agriculture Caption Specimens of annual bluegrass are being collected across Tennessee and propagated in a controlled laboratory setting at the UT Institute of Agriculture to test for resistance to commonly used herbicides. The goal is to quantify the scope of herbicide resistance in annual bluegrass populations across Tennessee. Credit Photo by J. Brosnan, courtesy UTIA. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.