Kiersten Wise, Purdue University (IMAGE) Purdue University Caption Kiersten Wise's research shows that fungicide use on corn without the presence of disease does not produce higher yields. Credit Purdue Agricultural Communication photo/Tom Campbell 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.