White mold can be a significant limitation to soybean production in Michigan. Although losses to white mold are worse in some years than others, there is always a part of the state that is affected by this disease. The purpose of these trials is to improve our understanding of when ascospores of the white mold fungus are released, so that we can improve fungicide or biological application timing.

Foliar fungicides can form part of an integrated management plan for white mold. However, selection of products with proven efficacy and appropriate timings are essential to maximize disease control and return on the foliar fungicide investment. In this proposal, we will determine the efficacy...