First Report of Charcoal Rot (Macrophomina phaseolina) on Soybean in Minnesota.

@article{Elaraby2003FirstRO,
  title={First Report of Charcoal Rot (Macrophomina phaseolina) on Soybean in Minnesota.},
  author={Mostafa Elaraby and James E. Kurle and Salliana Ryan Stetina},
  journal={Plant disease},
  year={2003},
  volume={87 2},
  pages={
          202
        }
}
In August 1999, soybean (Glycine max (L.) Merr.) plants exhibiting symptoms of charcoal rot were observed near Zumbrota, MN. Symptoms included shrunken, unfilled pods, and brown, wilted leaves attached to dead petioles and stems (1). When stems of symptomatic soybean plants were split, areas of gray-to-black discoloration where present in the stem cortex (1). Black, spherical microsclerotia 77 to 90 µm in diameter and elongated microsclerotia 77 to 120 µm long (1) were found in vascular tissue… CONTINUE READING
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