All posts in Upper Midwest

  • If You Aren’t Ready for Downy Mildew, Get Ready

    Downy mildew has been reported in southern Ontario and MSU Extension is letting growers know that if they haven’t already, it’s time to prepare for the disease. Caused by Oomycete parasites, downy mildew gets its name from the fluffy sporulation that usually appears on the bottom of infected leaves as the pathogen completes its disease cycle. The spores can germinate and spread the disease to healthy plant tissues. The initial symptoms are chlorotic lesions, which…



This agronomic photo shows corn fibrous, modified, and penetrating roots.
This agronomic photo shows young waterhemp.
This agronomic photo shows corn infected by gray leaf spot.
This agronomic image shoes phytophthora root rot.
This agronomic image shows corn leaf infected by northern corn leaf blight.
This agronomic photo shows the weed palmer amaranth.