Why Are There No New Commercial Herbicide Modes of Action?
The hundreds of commercial herbicide active ingredients possess only about twenty modes of action (MOA). No new herbicide MOA has been introduced to the marketplace since the hydroxyphenylpyruvate dioxygenase (HPPD) inhibitors about twenty years ago. Before the early 1990s, a new MOA was introduced about every three years Part of the reason for the MOA pipeline drying up has been the dramatic reduction in the number of companies doing pesticide discovery research since 1970. Another important factor is the reduction in value of the nonglyphosate herbicide market due to the dominance of glyphosate world-wide since the adoption of glyphosate-resistant crops. This led to a reduction in investment in herbicide discovery research and in development of already discovered herbicides with old MOAs.
glyphosate herbicide mode of action natural product
Stephen O.Duke
USDA, ARS, NPURU, P. O. Box 8048, University, MS 38677, USA
国际会议
北京
英文
25-26
2012-09-15（万方平台首次上网日期，不代表论文的发表时间）