Stem canker-like Phytophthora stem rot
Stem canker-like Phytophthora stem rot.
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Soybean Phytophthora in August (August, 2001)Phytophthora stem rot
Phytophthora stem rot.
This image appears in the following articles:
Scouting for soybean seedling diseases (May 1998)
Identification of soybean seedling diseases (May 2001)
Update of Phytophthora races present in Iowa (June 2004)