Stem canker-like Phytophthora stem rot

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.

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)