Leaf scorch
scouted June 12, 2024
- Scientific Name
- Abiotic
- Background
- Soybeans in Cumberland County were scouted and 15% of the field was observed to be affected by blight, canker, damping off, and dieback.
- Conclusion
- The damage is attributed to abiotic factors. Common stresses affecting soybeans include drought, waterlogging, nutrient deficiencies, soil compaction, temperature extremes, and chemical injury either from direct application or drift. The scorch leaf symptom indicates a vascular issue once soybeans shift into the reproductive phase. “Scorch” is usually the result of root-rot issues such as SDS, CBR, Dectes stem borer, or Phytophthora root rot. Fungicide applications will not impact these problems and should be avoided. In this particular case, no pathogen was recovered from the leaves submitted, meaning that the scorch is solely due to abiotic factors.
- Resources
