6-arylpicoline herbicide controls resistant broadleaf crops
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Solution Overview
Problem
There is a persistent challenge in agriculture to effectively control the growth of herbicide-tolerant volunteer crops, such as soybeans, which can interfere with desirable vegetation and are difficult to eradicate due to their resistance to common herbicides, necessitating new methods for weed control.
Innovation Solution
The use of 6-arylpicoline carboxylic acid or its agriculturally acceptable salts or esters, applied in specific amounts to prevent emergence or growth of broadleaf volunteer crops, including genetically modified soybeans resistant to other herbicides, achieving effective control with minimal regrowth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional herbicides are used to control volunteer crops, then application cost is reduced, but control effectiveness deteriorates due to herbicide tolerance
Solution Approach 1:
The patent applies parameter changes by using a different chemical compound class (6-arylpicoline carboxylic acid) with a novel mode of action compared to conventional herbicides. This chemical parameter change allows effective control of herbicide-tolerant volunteer crops that have developed resistance to traditional herbicides, achieving both high control effectiveness and low application rates
2Reliability
If high application rates of herbicide are used, then control effectiveness improves, but cost and environmental impact worsen
Solution Approach 1:
The patent achieves high control effectiveness at low application rates (0.5-20 g ae/ha) by changing the chemical parameter to a more potent herbicide compound. This parameter change in herbicide efficacy allows reducing the quantity of substance applied while maintaining or improving control effectiveness, thereby reducing environmental impact and cost
3Reliability
If new herbicide compounds are developed, then control effectiveness against resistant crops improves, but device complexity and registration requirements worsen
Solution Approach 1:
The patent introduces a new chemical compound with a distinct molecular structure (6-arylpicoline carboxylic acid) that provides effective control against herbicide-tolerant crops. This parameter change in chemical structure delivers the needed control effectiveness while the patent addresses formulation complexity by providing specific guidance on agriculturally acceptable salts and esters
Data Source
AI summary
Disclosed herein are methods of controlling a broadleaf volunteer crop, comprising applying to the broadleaf volunteer crop, an area adjacent the broadleaf volunteer crop, or to soil or water to prevent the emergence or growth of the broadleaf volunteer crop, a herbicidally effective amount of a 6-arylpicoline carboxylic acid, a 2-arylpyrimidine carboxylic acid, or a salt or ester thereof.