Search

Crops for Kids: Soil Sampling

Angie Rieck-Hinz, Extension Field Agronomist, discusses the importance of soil sampling and demonstrates how to take a proper soil sample.

Downy Mildew of Soybean

Ed Zaworski of the Plant and Insect Diagnostic Clinic at Iowa State University discusses downy mildew of soybean. Downy mildew is common but seldom causes serious yield loss. Lesions occur on upper leaf surfaces as irregularly shaped, pale green to light yellow spots that enlarge into pale to bright yellow spots.