Integrated Crop Management is published by the Department of Entomology , Iowa State University , Ames, Iowa.
Spring brings questions about when to use chemically treated soybean seeds for no-till.
Make the decision based on the risk level of seedling diseases. Using fungicide to treat seeds is beneficial only when risk of seedling diseases is high. If there is a history of stand reduction for a field in the past few years, there is a high disease risk in the field. Use of low quality seeds increases disease risk. Planting early at soil temperatures lower than normal increases disease risk.