Rhizoctonia crown rot
scouted Sept. 1, 2022
- Scientific Name
- Rhizoctonia sp.
- Background
- Soybeans in Wayne county, variety s61-m2x, were scouted and it was observed that 10% of the field was affected by dieback, browning and yellowing between the veins, leaf drop, and stem rot in patches in the field.
- Conclusion
- This issue was identified as Rhizoctonia Crown rot. The disease can occur under various moisture conditions, preferring warm and moist soil. It is more prevalent can be increased by plant stress from herbicide or hail injury or the soybean cyst nematode (SCN). To manage Rhizoctonia crown rot, it is recommended to encourage seedling health with good agronomic practices and the use of high-quality seed. Avoiding or reducing plant stress, such as from herbicide injury and SCN infection, is crucial. Crop rotation and tillage may be beneficial where disease has been severe. Some seed treatment fungicides can reduce Rhizoctonia infection for a few weeks after planting. However, no commercial corn or soybean cultivars are fully resistant to this disease.
- Resources
-
- No resources have been added.
