Phomopsis seed rot is caused by several different fungi that are part of a complex.  This is a seed pathogen, and severely infected seed is chalky white in color and does not germinate. Fludioxonil is one of the primary treatments.  In our lab, the strobilurin fungicides were compared in a rolled towel assay and pyraclostrobin treated seed also provided protection in seed lots with 35% level of Phompsis infection.


Overall use high-quality, healthy seed, plant into soil that is optimum for seed germination and growth, as well as plant to optimum depth and moisture levels.  Remember, don’t beat the rain and have one of  those 3-4-in. dumpers that will saturate the field for days.  If your seed is not protected you will most likely have to replant that field.