Herbicidal Composition for Glyphosate-Resistant Amaranthus Control
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Solution Overview
Problem
Existing methods are ineffective in controlling glyphosate-resistant weeds, particularly those belonging to the genus Amaranthus, such as Amaranthus palmeri, which have increased copies of the EPSPS gene.
Innovation Solution
Applying trifludimoxazin at a rate of 5 to 200 g per 10000 m2 to the glyphosate-resistant weeds or their habitat, including crops like soybean, corn, and other agricultural areas, to effectively control these weeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If glyphosate is applied to control weeds, then common weeds are effectively controlled, but glyphosate-resistant weeds (particularly Amaranthus species) are not controlled
Solution Approach 1:
The patent changes the chemical parameter of the herbicide from glyphosate to trifludimoxazin, which has a different mode of action and chemical structure. This parameter change allows the herbicide to overcome resistance mechanisms in Amaranthus species that have developed specific resistance to glyphosate, thereby restoring effective weed control against previously resistant populations.
2Reliability
If trifludimoxazin is applied at high rates to ensure control, then herbicidal effect improves, but risk of crop damage increases
Solution Approach 1:
The patent applies trifludimoxazin selectively to weed habitats and treated areas where glyphosate-resistant weeds are present, rather than uniform high-rate application across all areas. This localized application strategy maintains effective herbicidal control in target zones while minimizing exposure and potential damage to crop areas, thereby balancing efficacy with crop safety.
Data Source
AI summary
A herbicidal composition, including trifludimoxazin and imazethapyr, where a weight ratio of trifludimoxazin to imazethapyr is 1:2 to 1:15.4.