Phytophthora root rot of soybean is a persistent and widespread problem affecting much of Iowa. We have received many reports of damping-off caused by Phytophthora sojae in the last few years, and with the warm soil conditions and wet weather in early June, we anticipate that it will be a problem again this year.
Iowa State University
Uphoff, Michael D. and Yang, X. B., "Phytophthora damping-off of soybeans" (1999). Integrated Crop Management News. 2163.
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