Randomized trial confirms Neocosmospora stem rot caused by Fusarium neocomosporiellum in soybean, indicating potential threat to crops.
Key Points
This research aimed to confirm the presence of Fusarium neocomosporiellum as the cause of stem rot in soybean plants in Missouri and establish its disease impact.
Soybean plants exhibiting symptoms were collected from a research center in Missouri.
Fusarium neocomosporiellum was cultured and used to inoculate soybean seedlings under controlled greenhouse conditions.
Koch’s postulates were completed to confirm the pathogen's role in causing disease.
Non-inoculated plants remained healthy, while inoculated plants showed stem browning after four weeks.
Perithecia resembling the pathogen developed on symptomatic stems after re-isolation processes were performed.
This report marks the first identification of F. neocomosporiellum causing Neocosmospora stem rot in Missouri.