Rain will reduce risk of mite problems. Disease survey information is limited, but suggests several diseases may pose potential risk to soybeans. Soybean cyst nematode, a major pest of soybeans in many other states and Ontario, Canada has NOT been detected in New York. Crop rotation, selection of disease resistant varieties of appropriate maturity groups, and use of sound agronomic practices help avoid of minimize soybean disease problems. Rotation to a non-susceptible crop such as corn, wheat or oats is recommended.
White mold causes damage under cool moist conditions.
Infection typically occurs at stem nodes, usually 4 - 20 inches above the soil line. Frequently a white cotton-like growth and small dark round to elongate shaped bodies can be seen on or within the stem. Stems and pods infected with this fungus are pale brown and appear water soaked. Resistant varieties may be on the horizon. Downy mildew appears on the upper surface of young leaves as pale green to light yellow spots which enlarge into pale to bright yellow spots of indefinite size and shape.