Richard Ferrieri (IMAGE) University of Missouri-Columbia Caption Richard Ferrieri, a research professor in the Department of Chemistry and investigator at the University of Missouri Research Reactor (MURR), said when the team added liquid smoke to the soil where a plant is growing, the researchers found it could enhance the plant’s natural defenses and increase its ability to resist pests and diseases. Credit University of Missouri Usage Restrictions For media use. License Original 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.