Department of Crop Sciences, University of Illinois, Urbana, IL, USA.
Pest Manag Sci. 2011 Mar;67(3):258-61. doi: 10.1002/ps.2100. Epub 2011 Jan 26.
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).
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.
These studies confirm that waterhemp has evolved resistance to HPPD-inhibiting herbicides.
美国伊利诺伊州中部一个玉米制种田中，水芹种群在苗后使用抑制 4-轻基苯丙酮酸双加氧酶（HPPD）的除草剂后仍未得到有效控制。
温室试验中，水芹田间种群的子代在单独或与莠去津联合使用唑草酮、噻酮磺隆或三甲苯草酮施于叶片后仍能存活。剂量反应试验表明，该种群对 HPPD 抑制剂唑草酮的抗性水平至少比敏感生物型高出 10 倍。
这些研究证实水芹已对 HPPD 抑制剂类除草剂产生了抗性。
