Herbicidal Composition Synergy Metobromuron Combinations

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Solution Overview

Problem

Current herbicidal compositions are not sufficient for effectively controlling undesired plants, including weeds, and lack synergistic herbicidal effects when combining specific herbicides.

Innovation Solution

A herbicidal composition comprising metobromuron and at least one herbicidal compound selected from chlorpropham, S-metolachlor, flufenacet, pyroxasulfone, nicosulfuron, fluazifop-P-butyl, prometryn, ioxynil, pendimethalin, trifluralin, prosulfocarb, thiobencarb, and indanofan, or their salts, applied in a herbicidally effective amount to achieve synergistic herbicidal effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional herbicidal compositions are used, then existing weed control is achieved, but synergistic herbicidal effects are not obtained and control effectiveness is insufficient

Engineering Contradiction:
Improveweed control effectivenessVSAvoidherbicidal activity efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent combines metobromuron with at least one herbicidal compound from a specific group (chlorpropham, S-metolachlor, flufenacet, pyroxasulfone, nicosulfuron, fluazifop-P-butyl, prometryn, ioxynil, pendimethalin, trifluralin, prosulfocarb, thiobencarb, or indanofan) to achieve synergistic herbicidal effects. This combination approach merges the actions of multiple herbicides with different modes of action to enhance overall weed control effectiveness beyond what single herbicides can achieve alone.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention creates a composite herbicidal composition by formulating metobromuron in combination with specific herbicidal compounds. This composite approach integrates multiple active ingredients with complementary mechanisms of action, resulting in a herbicidal mixture that exhibits enhanced efficacy and broader spectrum control compared to individual components.

Inventive Principle:
Principle #40Composite materials

2Reliability

If higher doses of herbicides are applied to improve control effectiveness, then weed killing ability increases, but safety to crop plants may be compromised

Engineering Contradiction:
Improveweed control effectivenessVSAvoidimpact on crop plants
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent utilizes parameter changes in herbicide combination ratios and dosing strategies to optimize the balance between weed control effectiveness and crop plant safety. By adjusting the proportions of metobromuron and accompanying herbicides, the formulation achieves enhanced efficacy at reduced doses, thereby maintaining crop safety while improving weed control.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention applies local quality by selecting specific herbicidal compounds that target particular weed types or growth stages, allowing differentiated control strategies. This enables enhanced effectiveness against specific weed problems while minimizing broad-spectrum impacts on crop plants, achieving precision in herbicidal action.

Inventive Principle:
Principle #3Local quality

3Productivity

If multiple herbicidal compounds are combined to increase activity, then synergistic effects are achieved, but formulation complexity increases

Engineering Contradiction:
Improveherbicidal activity efficiencyVSAvoidcomposition formulation complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies segmentation by organizing the herbicidal composition around metobromuron as a core component, with specific herbicidal compounds from a defined group serving as complementary agents. This segmented approach categorizes the multiple ingredients by their specific functions and modes of action, making the complex formulation more manageable and easier to optimize for different weed control scenarios.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS9993001B2Herbicidal composition
Publication Date: 2018.06.12 ISHIHARA SANGYO KAISHA LTD

AI summary

To provide a highly active herbicidal composition to control undesired plants by synergistic herbicidal effects.The present invention provides a herbicidal composition comprising (A) metobromuron or its salt, and (B) at least one herbicidal compound selected from the group consisting of chlorpropham, S-metolachlor, flufenacet, pyroxasulfone, nicosulfuron, fluazifop-P-butyl, prometryn, ioxynil, pendimethalin, trifluralin, prosulfocarb, thiobencarb and indanofan, or its alkyl ester or its salt; and a herbicidal method of using it.