Herbicidal Composition Synergy for Lower Application Rates
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Solution Overview
Problem
Current herbicides for controlling unwanted vegetation often require high application rates, which can reduce selectivity and increase economic and ecological costs, and may face stability and compatibility issues when combined with other active compounds.
Innovation Solution
Combining herbicides with structurally different herbicides, such as those from the amino-s-triazine class, to achieve synergistic effects that allow for lower application rates and improved stability, efficacy, and selectivity, including the use of safeners and other crop protection agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high application rates of herbicides are used to control harmful plants, then the herbicidal efficacy is improved, but the selectivity is reduced and economic and ecological costs increase
Solution Approach 1:
The patent combines two or more herbicides with different modes of action and spectral characteristics into a single composition. This merging allows the formulations to achieve enhanced weed control efficacy through synergistic effects while maintaining selectivity and reducing the total application rate required, thereby addressing both the efficacy improvement and harm reduction goals simultaneously.
2Adaptability or versatility
If herbicides are combined with other active compounds to improve application profile, then additional properties are contributed, but physical and biological incompatibility phenomena occur
Solution Approach 1:
The patent carefully selects and adjusts the concentration ratios of different herbicide components within specific ranges to optimize both efficacy and stability. By changing the parametric composition (proportions of individual herbicides), the formulation achieves synergistic effects while minimizing incompatibility issues, allowing versatile application profiles without sacrificing compositional stability.
3Object-generated harmful factors
If application rates are reduced to lower economic input and improve ecological compatibility, then the amount of active compound and formulation auxiliaries is reduced, but the herbicidal action may be insufficient
Solution Approach 1:
The patent merges multiple herbicides with complementary spectral activities and modes of action into integrated formulations. This combination approach enables the use of lower total application rates because the synergistic interaction between components enhances efficacy, thereby maintaining adequate herbicidal action while reducing economic input and ecological impact.
4Productivity
If combinations of active compounds are used to achieve synergistic effects and reduced application rates, then the desired properties are obtained, but physical and biological incompatibility and decomposition may occur
Solution Approach 1:
The patent optimizes the concentration parameters of individual herbicide components within specific ranges to achieve synergistic effects while maintaining formulation stability. By carefully controlling the parametric composition and ratios of active compounds, the formulation realizes reduced application rates and enhanced productivity without suffering from incompatibility or decomposition issues.
Data Source
AI summary
Herbicide combinations comprising an effective amount of components (A) and (B), wherecomponent (A) is one or more herbicides of the formula (I) or salts thereof,in whichR1 is H or a group of the formula CZ1Z2Z3, where Z1, Z2 and Z3 are as defined in claim 1, R2 and R3 are each H, alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl, haloalkynyl having in each case up to 4 carbon atoms or acyl, R4 is H, (C1-C6)-alkyl or (C1-C6)-alkoxy;R5, R6, R7 and R8 are each H, (C1-C4)-alkyl, (C1-C3)-haloalkyl, halogen, (C1-C3)-alkoxy, (C1-C3)-haloalkoxy or cyano;A is CH2 or O or a direct bond, andcomponent (B) is one or more herbicides from the group of compounds consisting of(B1) soil-acting herbicides particularly suitable for pre-emergence application against monocotyledonous or dicotyledonous harmful plants,(B2) foliar-acting herbicides particularly suitable for post-emergence application against monocotyledonous or dicotyledonous harmful plants, and(B3) soil-acting and foliar-acting herbicides suitable for pre- or post-emergence application against monocotyledonous or dicotyledonous harmful plants, are suitable for controlling harmful plants.