Dr. Tom Allen, Extension Plant Pathologist at DREC-Stoneville, presents ratings for various foliar diseases that affect soybean varieties grown in the Mississippi Soybean Variety Trials each year. Ratings are based on each variety’s reaction to natural infestations of each disease at specific locations; i.e., plants were not inoculated with disease pathogens. Thus, the ratings do not presume to indicate a variety’s response to a known yield-reducing level of the pathogen. Rather, the ratings are to be used as an indicator of each variety’s reaction to the level of the pathogen present at each location. Stem canker ratings were made where plants had been inoculated with the pathogen.