There’s no shortage of diseases waiting to descend on your soybean crop. No matter where you farm, managing disease requires integrated action from planting to harvesting. Scouting and record-keeping are two tools that – when used in addition to the information below – can help you save considerable yield. The summaries below are guidelines and should be supplemented with information from your local extension on regional thresholds.
(Source – http://unitedsoybean.org/article/tips-for-managing-7-serious-soybean-diseases/)