Disease Severity and Insect Defoliation Training

Train here before hitting the field to ensure accurate severity assessment.

Use this web tool to help train your eyes for more accurate disease and defoliation ratings on field crops. Crop scouts and researchers often overestimate the amount of disease severity or defoliation on leaves, and the activities here will help hone assessment skills for common crop diseases and insect pests. 

Sisson, A.J., Mueller, D.S., Poss, E., Dear, D. 2020. Disease Severity and Defoliation Training Webtool. Crop Protection Network. Doi.org/10.31274/cpn-20200722-0