The soybean has a tremendous ability to compensate for variations in population. Therefore, the penalty for either over planting or under planting may be relatively small. Growers should remember to compensate for seeds with poor germination qualities. They should be placed so as to reach water which will enable rapid germination and the cooling effect of the moisture. Practices to control soybean diseases include the selection of disease resistant varieties, rotating crops, practicing clean tillage, planting disease-free, high quality seed, maintaining soil fertility, controlling nematodes, insects, weeds, and applying fungicides when needed.
Field surveys are a means of anticipating disease problems.
If a survey show a disease present in your field one year, you will have some advance warning that it may pose a more serious problem in future years.