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2022
Evaluate the presence of Dectes stem borer in soybean cv
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Contributor/Checkoff:
Kentucky Soybean Promotion Board
Category:
Sustainable Production
Keywords:
Parent Project:
Evaluating the presence of Dectes stem borer in soybean fields, weeds and assessing the tolerance of cultivars in Kentucky Year 1
Lead Principal Investigator:
Raul Villanueva, University of Kentucky
Co-Principal Investigators:
Project Code:
02-009-022
Contributing Organization (Checkoff):
Kentucky Soybean Promotion Board
$16,668
Institution Funded:
University of Kentucky
$16,668
Brief Project Summary:
The soybean stem borer (Dectes texanus) has been observed infesting commercial soybean fields and experimental plots in Kentucky. Although there are publications reporting the absence of effects of this pest on soybean yields. However, Dectes has the potential to cause lodging of plants principally during drastic weather events such as high winds or rains. These events may be seen more frequently such is the case of the “derecho” storm in the Midwest that ‘leveled soybeans and corn.' Lodging has been reported to cause yield loss and increase of time in harvesting operations. This proposal will study infestations in commercial fields, detect additional host plants (weeds surrounding commercial...
Information And Results
Project Summary

The soybean stem borer (Dectes texanus) has been observed infesting commercial soybean fields and experimental plots in Kentucky. Although there are publications reporting the absence of effects of this pest on soybean yields. However, Dectes has the potential to cause lodging of plants principally during drastic weather events such as high winds or rains. These events may be seen more frequently such is the case of the “derecho” storm in the Midwest that ‘leveled soybeans and corn.' Lodging has been reported to cause yield loss and increase of time in harvesting operations. This proposal will study infestations in commercial fields, detect additional host plants (weeds surrounding commercial fields), conduct a cooperative work with Dr. Claire Venard investigating the tolerance of soybean varieties to Dectes in Princeton and areas where Dectes have been observed in great numbers (McLean, Davies, Hancock) and conduct a small plot trials at the UK’s REC in Princeton. This project will help to increase soybean yield and increase profitability.

Project Objectives

1. Evaluate abundances of Dectes in commercial soybean fields in at least 4 counties of Kentucky.
2. Study the tolerance of commercial soybean cultivars to the presence of Dectes in small plot trial and commercial fields
3. Create a web page dedicated to the Dectes stem borer, and transfer all information generated in this study to end users through the use of digital, printed and extension conferences.

Project Deliverables

Presentations in local, regional and national meetings. Online articles in Kentucky Pest News Blog and UKY Soybean newsletter. A peer reviewed publication after a second year of research. Train in-field applied entomology to an agricultural worker. Submit Report to KSB.

Progress Of Work

Final Project Results

Benefit To Soybean Farmers

This project will increase the knowledge about this insect (learn about its biological cycle, peak abundances, effective time to control), help to identify soybean cultivars not preferred by Dectes or resistant to lodging from the feeding by Dectes, and identify cultivars that have beneficial yields. Thus, the combination of all these factors will help to increase farmers' profitability.

The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.