sojae is the perfect form of the causal pathogen of pod and stem blight of soybean.
sojae can infect any above ground parts of the plant; the disease may be present without showing any symptoms.
Mid-season symptoms appear as tiny black dots (pycnidia) on fallen leaves or abscised petioles.
Conditions that favor this fungal infection include: Disease cycle Diaporthe phaseolorum var.
[5] High quality thoroughly cleaned seed and crop rotation are the primary controls of Diaporthe phaseolorum var.
Broken branches provide a point of entry for Diaporthe phaseolorum var.
When heavily inoculated plant debris is present, a deep tillage option can be taken to bury the residue.