Herbicidal Composition Synergy for Lower-Rate Weed Control

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Solution Overview

Problem

Existing herbicides face challenges in maintaining efficacy against weeds due to sensitivity changes, requiring higher application rates which can reduce selectivity and increase environmental impact, while combinations often suffer from incompatibility and antagonistic effects.

Innovation Solution

A composition combining herbicidally active compounds A8 or its agrochemically compatible salts with specific herbicides (B) such as Diflufenican and Glufosinate, ensuring compatibility and synergistic effects to enhance weed control with lower application rates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If higher application rates of herbicides are used to maintain efficacy against weeds with changed sensitivity, then weed control effectiveness is improved, but selectivity is reduced and environmental impact increases

Engineering Contradiction:

Improveweed control effectivenessVSAvoidenvironmental impact and loss of selectivity

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the chemical parameters of the herbicide composition by combining compound A8 with specific herbicides from groups B2 and B7, creating a synergistic mixture that achieves enhanced weed control at lower application rates, thereby reducing environmental impact while maintaining effectiveness

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite herbicidal composition by combining compound A8 with specific herbicides (B2 and B7 groups), where the synergistic interaction between components produces superior weed control efficacy at reduced application rates compared to individual herbicides

Inventive Principle:

Principle #40Composite materials

2Adaptability or versatility

If combinations of multiple active ingredients are used to improve application profile, then additional properties are achieved, but physical and biological incompatibility and degradation occur

Engineering Contradiction:

Improveapplication profileVSAvoidformulation stability

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent optimizes the compositional parameters by selecting specific herbicide groups (B2 and B7) that are chemically compatible with compound A8, ensuring formulation stability while achieving enhanced application properties through synergistic effects

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent uses compound A8 as a compatible intermediary substance that can be mixed with specific herbicides from groups B2 and B7 without causing degradation or antagonism, enabling stable multi-component formulations with improved performance

Inventive Principle:

Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If application rate is reduced to lower costs and improve environmental compatibility, then environmental impact is reduced, but herbicide efficacy decreases

Engineering Contradiction:

Improveenvironmental compatibilityVSAvoidherbicide efficacy

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent changes the concentration parameters by formulating synergistic combinations that achieve enhanced efficacy at lower application rates, allowing reduced environmental impact while maintaining or improving weed control effectiveness

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent develops composite herbicidal formulations combining compound A8 with specific herbicides (B2 and B7 groups) that produce synergistic effects, enabling effective weed control at reduced application rates and improving environmental compatibility

Inventive Principle:

Principle #40Composite materials

Data Source

PatentEP4378314B1Herbicidal compositions

Publication Date: 2025.12.24 BAYER AG

AI summary

The present invention relates to compositions containing herbicidally active compounds (A) and (B), wherein (A) represents one or more compounds of the general formula (I) or their agrochemically compatible salts [component (A)], and (B) represents one or more herbicides [component (B)]. The application further relates to a method and the use of the herbicidal composition according to the invention for controlling weeds or for regulating growth.