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Soybean Phytophthora root, crown, and stem rot is one of the most significant diseases affecting soybean production worldwide. Multiple species of Phytophthora, a group of related soilborne pathogens, can infect soybean and cause primarily root rots while Phytophthora sojae causes root, crown, and stem rot, resulting in more severe symptoms and increased yield loss. In the state of Illinois, it ranks among the top yield-reducing diseases, following white mold and soybean cyst nematode (SCN).…

Stalk rot in corn primarily leads to stalk breakage and lodging, and consequently yield loss. Stalk rot is caused by pathogens (fungi or bacteria). While abiotic stress like flooding, droughts, or insect infestations can cause similar damage, the symptoms in the stalk can vary depending on the cause.
Stalk rot pathogens attack the pith, degrading it and destroying the vascular tissue within the stalk. This disruption affects water and nutrient movement within the plant, resulting in premature plant collapse.…