Herbicide-resistant weeds were first reported in the 1950s and the number of weeds resistant to existing herbicides has grown over time. A recent example of this is the reported weed resistance to glyphosate due to widespread usage in glyphosate tolerate crops. At Dow AgroSciences, one approach to managing weed resistance is through the discovery of herbicides with novel modes of action. The process of herbicide discovery, addressing mode of action concerns, and optimization of an imidazole carboxylic acid herbicide hit will be presented.

Early herbicide discovery: The search for new modes of action

248th National Meeting (2014)

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