Soybean disease year in review—2015
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The Iowa State University Integrated Crop Management Conference is Iowa's premier crop production education event. No other program in Iowa brings together the diverse range of topics, slate of expert presenters and results of the latest University research.
The ICM Conference offers workshops focusing on the latest in crop production technology. Experts from Iowa and surrounding states will provide research updates and results in soil fertility, soil and water management, crop production and pest management.
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Abstract
One thing is for sure—the 2015 season produced several interesting dilemmas for soybean farmers. Early in the year we had seedling diseases mixed with phytotoxicity from new seed treatments and certain herbicides. During the midseason, some fairly uncommon diseases crept in including soybean viruses and an outbreak of Phyllostica leaf spot. At the end of the season, white mold, Diaporthe and sudden death syndrome (SDS) were common, with SDS being one of the most prominent diseases in 2015. In some parts of Iowa SDS appeared a few weeks earlier than in 2014. Also, as if to add insult to injury, green stem disorder (GSD) was quite prevalent in many parts of the state.