Saprophytic Fungus

As combines roll through corn, it has been noted that dark clouds resembling smoke have been following combines across the field. These dark clouds of dust are spores from various forms of saprophytic fungi. Saprophytic finds its origin in the Greek words Sapros meaning putrid or rotten and Phyton meaning plant. These saprophytic organisms are fungi that feed on dead and decaying plant tissue. Other more advanced saprophytes are mushrooms and yeasts commonly found in making breads or alcohol products.

The extended periods of warm and humid conditions have allowed these fungi to proliferate. Saprophytic fungi are not known to cause quality or toxin issues in grain. Even if husks show signs of infection, the corn grain usually remains untouched. The cloud of spores created by the combine can irritate respiratory issues and regular cleaning of cab and engine filters is recommended as the spores can plug these filters.

The colonies of these fungi cause the fodder and stalks to appear gray or black and aid in the decay of stalks and fodder. (By doing this, it aids in the stalks breaking down and nutrient recycling.)

If you have any questions about saprophytic fungus or have any other observations while harvesting contact your Dairyland Seed DSM or Regional Agronomist.