Sclerotinia stem rot

Caused by: Sclerotinia sclerotiorum
Problem Category: Fungal Disease
Symptoms: Upper leaves of plant become wilted and die; leaves turn a gray-green color and dry out; water-soaked lesions on stem nodes which change color from tan to white; lesions may girdle the stem and infection may spread to both side branches and pods; cottony white mycelial growth occurs on all infected plant parts
Comments: Disease emergence favors cool, wet weather;
Management: Do not plant soybeans in fields where common bean, sunflowers or other susceptible crops have been grown the previous season; space plants in narrow rows; avoid excessive irrigation after plants are no longer flowering; plant soybean varieties that are less susceptible to the disease
Control: Spray 10% cow urine extract to control rot and grow resistant varieties