Influence of herbicides on Rhizoctonia root and hypocotyl rot of soybean

Carl A. Bradley, Glen L. Hartman, Loyd M. Wax, Wayne L. Pedersen

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Rhizoctonia root and hypocotyl rot, caused by Rhizoctonia solani, is a common disease of soybean. Field studies established to observe how preemergence and postemergence herbicides affect the severity of Rhizoctonia root and hypocotyl rot on several soybean cultivars were conducted in Champaign, Dekalb, Monmouth, and Urbana, IL. Herbicides did not significantly (P≤0.05) decrease the R. solani disease severity index (DSI) compared to the control, but did cause some increases in DSI compared to the control at a low frequency in some years. In greenhouse studies, dimethenamid+metribuzin, pendimethalin, acifluorfen, and imazethapyr caused an increased Rhizoctonia root and hypocotyl rot severity compared to the no-herbicide control.

Original languageEnglish
Pages (from-to)679-687
Number of pages9
JournalCrop Protection
Issue number8
StatePublished - Sep 1 2002

Bibliographical note

Funding Information:
The authors thank the Soybean Research and Development Council and the Illinois Soybean Program Operating Board for funding, and E. Adee, K. Ames, T. Kincaid, J. Manandhar, D. Maxwell, D. Mueller, and L. Paul for technical assistance. Mention of a trademark, vendor, or proprietary product does not constitute a guarantee or warranty of the product by the United States Department of Agriculture or the University of Illinois and does not imply its approval to the exclusion of other products or vendors that also may be suitable.


  • Glycine max
  • Interaction
  • Plant disease

ASJC Scopus subject areas

  • Agronomy and Crop Science


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