Soybean Stem Canker

scouted Aug. 22, 2023

Soybeans were scouted at the R2/R3 growth stage and browning discoloration, wilting, defoliation, and dieback were observed in a singular circular formation in this field.
This issue was confirmed by the NC State Plant, Disease and Insect clinic to be Soybean Stem Canker. Symptomology associated with soybean stem canker can include reddish-brown lesions on the main stem at the base of a lower stem, small black spots that appear on dead tissue, and dead leaves that remain attached to the stem. There are not options to remedy this issue in this season, however you can best manage this disease with resistant varieties and crop rotation to non-host crops such as corn or wheat.

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