Plant and Insect Diagnostic Clinic Nematode Sample Submission Form
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Procedures Soil samples should NOT be collected when the soil is wet or frozen. Soybean cyst nematode (SCN) egg count WHEN: In fall: after harvest and before the soil freezes. In spring: before planting, after the ground has thawed and drained. During growing season: from near stunted and/or yellow soybeans.