Alfalfa (image) Penn State Share Print E-Mail Caption The researchers found that alfalfa (Medicago sativa) is susceptible to very low rates of dicamba, just 0.1 to 1 percent of the expected field application rate can negatively influence flowering. The image shows a damaged alfalfa plant. Credit Penn State Usage Restrictions None Share Print E-Mail 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.