Applying Dye (image) American Society of Agronomy Share Print E-Mail Caption Ross applies fluorescent dye near the research wells before a spring storm. The dye will help trace the water's path through the environment. Credit Halya Petzold Usage Restrictions Please use with story only. 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.