This fall, the Iowa State University Plant Disease Clinic began using a new technique that increases the efficiency of extracting eggs from soil samples infested with the soybean cyst nematode (SCN). SCN egg counts from soil samples processed with this technique will be 100 to 200 percent greater than in the past. For example, a soil sample with a reported density of 1,585 eggs per 100 cm3 of soil with the previous technique now will have an egg density of 4,225 eggs per 100 cm3 of soil.
Iowa State University
Tylka, Gregory L. and Flynn, Paula, "Improved SCN egg extraction technique" (1999). Integrated Crop Management News. 2215.
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