Root knot nematode
scouted Oct. 25, 2024
- Scientific Name
- Meloidogyne sp.
- Background
- Soybeans in Johnston County were being scouted, and it was observed that 85% of the field was affected by widespread dieback. Nematode galls were present on roots; stress may have contributed to plants with green stems and pods.
- Conclusion
- Root knot nematodes were identified as part of the issue. High population levels of root knot nematodes present symptoms of non-uniform stunting, wilting, and chlorotic patches, as well as an increased likelihood of disease complex with other soilborne pathogens, and a hindrance to water and nutrient uptake. Selecting a root knot nematode-resistant variety is the most cost-effective tool for soybean nematode management, but there are other options like rotating with poor host crops to help decrease populations or utilizing chemical control.
- Resources
