Resistance to HPPD-inhibiting herbicides in a population of waterhemp (Amaranthus tuberculatus) from Illinois, United States

Nicholas E. Hausman, Sukhvinder Singh, Patrick J. Tranel, Dean E. Riechers, Shiv S. Kaundun, Nicholas D. Polge, David A. Thomas, Aaron G. Hager

Research output: Contribution to journalArticlepeer-review

Abstract

BACKGROUND: A population of waterhemp in a seed maize production field in central Illinois, United States, was not adequately controlled after post-emergence applications of herbicides that inhibit 4-hydroxyphenylpyruvate dioxygenase (HPPD). RESULTS: Progeny from the field population survived following treatment with mesotrione, tembotrione or topramezone applied to the foliage either alone or in combination with atrazine in greenhouse experiments. Dose-response experiments indicated that the level of resistance to the HPPD inhibitor mesotrione is at least tenfold relative to sensitive biotypes. CONCLUSION: These studies confirm that waterhemp has evolved resistance to HPPD-inhibiting herbicides.

Original languageEnglish (US)
Pages (from-to)258-261
Number of pages4
JournalPest Management Science
Volume67
Issue number3
DOIs
StatePublished - Mar 2011

Keywords

  • 4-hydroxyphenylpyruvate dioxygenase
  • Amaranthus rudis
  • Amaranthus tuberculatus
  • Herbicide resistance
  • Herbicide synergism
  • Waterhemp

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Insect Science

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