Synergistic Herbicidal Composition for Post-Emergent Weed Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current post-emergent weed control methods are inadequate in terms of activity, spectrum of activity, application rates, compatibility with crop plants, and efficient control of emerged weeds, particularly Commelinids.
Innovation Solution
A method involving the application of a composition comprising herbicide A (e.g., ethyl 2-[2-[[3-chloro-5-fluoro-6-[3-methyl-2,6-dioxo-4-(trifluoromethyl)pyrimidin-1-yl]-2-pyridyl]oxy]phenoxy]acetate) and glyphosate, optionally with herbicide C (such as saflufenacil or trifludimoxazin), to emerged weeds, achieving a synergistic effect that enhances herbicidal activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single herbicide is used for post-emergent weed control, then the application is simple, but the herbicidal activity and spectrum of activity are insufficient
Solution Approach 1:
The patent combines multiple herbicides (herbicide A from group 2,4-D and its derivatives, herbicide B from group PPO inhibitors, and optionally herbicide C from group HPPD inhibitors) into a single composition to achieve synergistic effects. This merging approach provides broad-spectrum post-emergent weed control with enhanced reliability while maintaining application simplicity through a unified formulation.
2Reliability
If higher application rates are used to improve weed control, then herbicidal activity increases, but compatibility with crop plants decreases and environmental harm increases
Solution Approach 1:
The patent changes the parameter of herbicide combination ratios to achieve synergistic effects at lower application rates. By optimizing the weight ratios of herbicide A (0.1-50 g/ha), herbicide B (10-1000 g/ha), and optionally herbicide C (0.1-10 g/ha), the composition achieves high herbicidal activity while reducing individual herbicide doses, thereby improving crop plant compatibility and reducing environmental harm.
Solution Approach 2:
The patent creates a composite herbicidal composition leveraging the complementary modes of action of different herbicide groups. Herbicide A (2,4-D group) provides broad-spectrum control, herbicide B (PPO inhibitor) adds activity against specific weeds, and herbicide C (HPPD inhibitor) provides additional spectrum expansion. This composite approach achieves superior weed control at reduced rates with improved crop safety.
3Reliability
If multiple herbicides are combined to broaden spectrum of activity, then weed control effectiveness improves, but composition complexity increases
Solution Approach 1:
The patent merges three herbicides from different chemical groups with complementary modes of action into a single synergistic composition. Herbicide A (2,4-D group) targets broad-spectrum weeds, herbicide B (PPO inhibitor) provides activity against grasses and broadleaves, and herbicide C (HPPD inhibitor) adds control of difficult-to-control species. This merging achieves broad spectrum of activity while maintaining manageable composition complexity through a unified formulation approach.
4Ease of operation
If post-emergent weed control is applied to achieve specific weed control, then weed identification is easier, but control of emerged weeds particularly Commelinids remains inadequate
Solution Approach 1:
The patent creates a composite herbicidal composition specifically designed to address the limitation of inadequate Commelinid control. The combination of herbicide A (2,4-D group), herbicide B (PPO inhibitor), and optionally herbicide C (HPPD inhibitor) provides synergistic activity that effectively controls emerged Commelinids and other difficult-to-control weeds, while maintaining the ease of post-emergent application and weed identification.
Data Source
AI summary
The present invention relates to a method for post-emergent weed control, which comprises applying an effective amount of a composition comprising herbicide A (component A), glyphosate (component B) and optionally herbicide C (component C) to emerged weeds, or an area, where weeds are growing.