Herbicidal Composition Synergy Reduces Application Rates
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Solution Overview
Problem
Current herbicide compositions face challenges in achieving effective weed control with lower application rates, often resulting in reduced selectivity and stability issues due to physical and biological incompatibilities between active compounds, which increases economic and environmental costs.
Innovation Solution
A composition combining herbicidally active compounds (A) and (B), where (A) represents compounds of a specific general formula or their agrochemically compatible salts, and (B) includes a range of herbicides from various groups, demonstrating synergistic effects that enhance activity and stability, allowing for reduced application rates and broader spectrum control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If application rates of herbicides are increased to maintain efficacy, then weed control effectiveness is improved, but economic cost and environmental impact increase
Solution Approach 1:
The patent combines compound (A) from formula (I) with compound (B) from formula (II) to create a synergistic herbicidal composition. This merging of two different herbicidal compounds produces an unexpected synergistic effect where the combination achieves superior weed control at lower application rates than either compound alone, thereby reducing both economic cost and environmental impact while maintaining or improving effectiveness
2Adaptability or versatility
If multiple herbicides are combined to broaden spectrum control, then control of unwanted plant growth is improved, but physical and biological incompatibility increases
Solution Approach 1:
The patent specifies precise structural parameters for compounds (A) and (B) including defined substituent groups (R1-R6, X1-X6, Z) and their possible variations. By controlling these chemical parameters and selecting specific combinations within defined ranges, the formulation achieves both broad spectrum control and stability, avoiding physical and biological incompatibility between the herbicides
3Quantity of substance
If application rates are reduced to lower cost, then economic expenditure is reduced, but herbicidal action is insufficient
Solution Approach 1:
The patent converts the potential harm of reduced application rates into a benefit by utilizing the synergistic interaction between compounds (A) and (B). The unexpected synergy means that lower doses of each compound, when combined, produce herbicidal action equal to or greater than higher doses of single compounds, thereby reducing cost while maintaining effectiveness
4Reliability
If higher application rates are used to compensate for resistance, then control of resistant harmful plants is improved, but selectivity of herbicides deteriorates
Solution Approach 1:
The patent creates a composite herbicidal system combining two chemically distinct compounds with different modes of action. This composite approach allows control of resistant weed populations through the combined effect of (A) and (B), while the specific structural definitions and synergistic interaction maintain selectivity, avoiding the need to increase application rates which would harm the crop
Data Source
AI summary
The present invention provides compositions comprising herbicidally active compounds (A) and (B), where (A) represents one or more compounds of the general formula (I) or their agrochemically acceptable salts [component (A)],and (B) represents one or more herbicides [component (B)]. The application furthermore relates to a method and to the use of the herbicidal composition according to the invention for controlling harmful plants or for regulating growth.