Pest Management Science (2011) 67, 258-261

Nicholas E. Hausman, Sukhvinder Singh, Patrick J. Tranel, Dean E. Riechers, Shiv S. Kaundun, Nicholas D. Polge, David A. Thomas and Aaron G. Hager (2011)
Resistance to HPPD-inhibiting herbicides in a population of waterhemp (Amaranthus tuberculatus) from Illinois, United States
Pest Management Science 67 (3), 258-261
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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Shiv S. Kaundun, Patrick J. Tranel

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Amaranthus tuberculatus (weed)	Maize/corn (Zea mays)	U.S.A. (mid N)