Phytophthora root rot disease is common on heavy and wet soil and excessively watered orchards. The fungus was isolated from cortical root rots and collar brown water-soaked lesions with abrupt margin. We fmd areas of dead trees in orchards of more than 3 years old. On the basis of the morphological characters, isolates are closely related to Phytophthora megasoperma var. sojae. The fungus is virulent under favorable conditions but is weakly agressive.
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