Garlic Mustard (2 of 2) (image) University of Miami Share Print E-Mail Caption This is garlic mustard invading the forest in Pennsylvania. Credit Susan Kalisz/University of Pittsburgh Usage Restrictions Use with credit. 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.