Pyroxasulfone and Membrane Disruptor Herbicide Compositions

Solution Overview

Problem

Current herbicides are ineffective against glyphosate-resistant weeds and require high dosages, leading to environmental and health concerns, and no-till farming complicates weed control due to lack of tilling, necessitating alternative weed control methods.

Innovation Solution

Agricultural compositions combining pyroxasulfone with plant cell membrane disruptor herbicides like diphenylethers, N-phenyl-phthalimides, triazolinones, or bipyridyliums in synergistic ratios, providing enhanced burndown activity and residual weed control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high dosages of single herbicides are used to control resistant weeds, then weed control effectiveness is improved, but environmental contamination and health risks increase

Engineering Contradiction:

Improveweed control effectivenessVSAvoidenvironmental contamination and health risks

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent combines pyroxasulfone with plant cell membrane disruptor herbicides (diphenylethers, N-phenyl-phthalimides, triazolinones, or bipyridyliums) in synergistic ratios to achieve enhanced weed control effectiveness. This combination approach allows for reduced individual herbicide dosages while maintaining or improving control efficacy against resistant weeds, thereby reducing environmental contamination and health risks associated with high dosages of single herbicides.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention creates composite herbicide formulations containing pyroxasulfone and plant cell membrane disruptors in specific synergistic ratios. These composite formulations provide superior weed control through mechanism-of-action complementarity, allowing effective control of resistant weeds at lower total herbicide rates, thus mitigating environmental and health concerns while maintaining reliability.

Inventive Principle:

Principle #40Composite materials

2Ease of operation

If diphenylether herbicides are applied alone to control weeds, then application simplicity is improved, but weed control effectiveness deteriorates

Engineering Contradiction:

Improveapplication simplicityVSAvoidweed control effectiveness

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent combines pyroxasulfone with plant cell membrane disruptor herbicides in synergistic ratios to achieve enhanced weed control effectiveness. This combination approach allows for reduced individual herbicide dosages while maintaining or improving control efficacy against resistant weeds, thereby reducing environmental contamination and health risks associated with high dosages of single herbicides.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention creates composite herbicide formulations containing pyroxasulfone and plant cell membrane disruptors in specific synergistic ratios. These composite formulations provide superior weed control through mechanism-of-action complementarity, allowing effective control of resistant weeds at lower total herbicide rates, thus mitigating environmental and health concerns while maintaining reliability.

Inventive Principle:

Principle #40Composite materials

3Ease of operation

If repeated use of the same active ingredient is done to simplify weed control management, then ease of operation is improved, but weed resistance develops reducing effectiveness

Engineering Contradiction:

Improveweed control management simplicityVSAvoidweed control effectiveness

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent combines pyroxasulfone with plant cell membrane disruptor herbicides in synergistic ratios to achieve enhanced weed control effectiveness. This combination approach allows for reduced individual herbicide dosages while maintaining or improving control efficacy against resistant weeds, thereby reducing environmental contamination and health risks associated with high dosages of single herbicides.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention creates composite herbicide formulations containing pyroxasulfone and plant cell membrane disruptors in specific synergistic ratios. These composite formulations provide superior weed control through mechanism-of-action complementarity, allowing effective control of resistant weeds at lower total herbicide rates, thus mitigating environmental and health concerns while maintaining reliability.

Inventive Principle:

Principle #40Composite materials

4Reliability

If mechanical removal of weeds is used to overcome herbicide resistance, then herbicide effectiveness is maintained, but resource consumption and labor requirements increase

Engineering Contradiction:

Improveweed control effectivenessVSAvoidresource consumption and labor requirements

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent combines pyroxasulfone with plant cell membrane disruptor herbicides in synergistic ratios to achieve enhanced weed control effectiveness. This combination approach allows for reduced individual herbicide dosages while maintaining or improving control efficacy against resistant weeds, thereby reducing environmental contamination and health risks associated with high dosages of single herbicides.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention creates composite herbicide formulations containing pyroxasulfone and plant cell membrane disruptors in specific synergistic ratios. These composite formulations provide superior weed control through mechanism-of-action complementarity, allowing effective control of resistant weeds at lower total herbicide rates, thus mitigating environmental and health concerns while maintaining reliability.

Inventive Principle:

Principle #40Composite materials

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The combination significantly increases herbicidal activity by up to 3-fold, achieving nearly 100% control of weeds, including glyphosate-resistant species, with reduced herbicide usage and improved persistence across varying weather conditions.

Implementation Method 1

Plant cell membrane disruptor herbicides work by causing destruction of cell membranes which results in cell content leakage

Methodology Applied

Scientific EffectCell membrane disruption:

Implementation Method 2

causing destruction of cell membranes which results in cell content leakage

Methodology Applied

Scientific EffectMembrane destruction:

Data Source

PatentUS9901096B2Herbicide compositions for weed control

Publication Date: 2018.02.27 VALENT USA CORP

AI summary

The present invention is directed to compositions containing herbicidal mixtures of a plant cell membrane disruptor herbicide selected from the group consisting of a diphenylether, N-phenyl-phthalimide, triazolinone, and bipyridylium, and pyroxasulfone. The present invention is further directed to methods of increasing the activity of a plant cell membrane disruptor herbicide with the compositions of the present invention.