Soybean stem borer
scouted Oct. 3, 2022
- Scientific Name
- Dectes texanus
- Background
- Soybeans in Wilson county, variety P54A36SX, were scouted and observed 15% of the field was affected by whole leaves browning and some leaf spots. These soybeans were planted on organic land behind wheat.
- Conclusion
- The issue was identified after the sample was analysed, and what was found was that the stem showed signs of Dectes stem borer, also known as soybean stem borer. Soybean stem borers have one generation a year and are active from May through early October. It usually causes indirect yield loss due to lodging or an interaction with other negative environmental conditions, such as drought. These insects are usually more abundant in field edges near weeds or fields adjacent to last year's soybeans. There is no economic threshold for it, but good cultural practices and timely harvest can limit its impacts.
- Resources
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- No resources have been added.
