Climatic and Environmental Trends Observed During Epidemic and Non-epidemic Years of Soybean Sudden Death Syndrome in Iowa

Fig. 2. Prevalence of soybean sudden death syndrome in Iowa counties based on surveys conducted in 1994-1995 (Yang and Lundeen, 1997) and 2006 (Robertson and Nutter, unpublished).



Image from Plant Health Progress article:
Climatic and Environmental Trends Observed During Epidemic and Non-epidemic Years of Soybean Sudden Death Syndrome in Iowa