Powdery Mildew Disease Trial (IMAGE) Earlham Institute Caption This image shows a powdery mildew disease trial carried out by the British Beet Research Organisation in Suffolk. Credit BBRO 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.