L-Glufosinate Herbicide Mixtures for Persistent Weed Control

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Solution Overview

Problem

Existing herbicides, particularly glufosinate, often require multiple applications and high dosages for effective weed control, and their efficacy is weather-dependent, with some weed species escaping control due to short persistence, necessitating improved herbicidal mixtures for efficient and reliable weed management in various agricultural settings.

Innovation Solution

The use of L-glufosinate or its salts in combination with specific herbicidal compounds like beflubutamid-M, tetflupyrolimet, and icafolin, which enhance herbicidal activity and persistence, allowing for efficient weed control across different agricultural applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If glufosinate is applied alone for weed control, then the herbicide can be used in various crop settings, but multiple applications and high dosages are required for effective control

Engineering Contradiction:

Improveapplicability across crop settingsVSAvoidweed control efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent combines glufosinate with a second herbicide compound to create a mixture that achieves superior weed control compared to glufosinate alone. This combining principle resolves the contradiction by maintaining broad applicability while significantly improving weed control efficiency through synergistic action of multiple herbicides.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The invention creates a composite herbicidal formulation combining glufosinate with specific second herbicides (such as HPPD inhibitors, ALS inhibitors, or other broadleaf weed control compounds). This composite approach maintains versatility across different crop types while enhancing overall productivity and weed control effectiveness.

Inventive Principle:

Principle #40Composite materials

2Productivity

If glufosinate is applied at high dosages to improve weed control, then effectiveness increases, but persistence remains short and weather dependence increases

Engineering Contradiction:

Improveweed control effectivenessVSAvoidpersistence of herbicidal activity

Core Design Contradiction:

ProductivityVSDuration of action of stationary object

Solution Approach 1:

By merging glufosinate with a second herbicide compound having different modes of action and persistence characteristics, the patent extends the overall duration of herbicidal activity. The second herbicide compensates for the short persistence of glufosinate, providing longer-lasting weed control while reducing weather dependence through complementary mechanisms of action.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If multiple herbicide applications are made to control resistant weed species, then control reliability improves, but operational complexity and cost increase

Engineering Contradiction:

Improvecontrol of resistant weed speciesVSAvoidnumber of applications required

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges glufosinate with a second herbicide that has different selectivity and mode of action, creating a single application that can control a broader spectrum of weeds including resistant species. This reduces the number of separate applications needed while maintaining or improving reliability, as the combination provides both immediate and residual control effects.

Inventive Principle:

Principle #5Merging (Combining)

4Productivity

If glufosinate is used in industrial vegetation management and forestry, then broad weed control is achieved, but protection of desirable trees from contact is required

Engineering Contradiction:

Improvebroad weed control capabilityVSAvoidtoxicity to desirable trees

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies the herbicide mixture in a manner that provides broad weed control in industrial vegetation management and forestry areas while protecting desirable trees through localized application techniques such as targeted spraying, timing applications before tree contact is possible, or using shielded application methods. The local quality principle allows different areas to receive different levels of treatment intensity.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20250380702A1Herbicidal mixtures comprising l-glufosinate or its salt and a second herbicide

Publication Date: 2025.12.18 BASF SE

AI summary

The present invention relates to herbicidal mixture comprising L-glufosinate or its salt and a herbicidal compound II selected from beflubutamid-M, tetflupyrolimet, dimesulfazet, benquitri-one, bipyrazone, cypyrafluone, dioxopyritrione, fenpyrazone, rimisoxafen, tripyrasulfone, fluchlo-raminopyr, fluchloraminopyr-tefuryl, pyriflubenzoxim, flufenoximacil, flusulfiname, iptriazopyrid, icafolin, pyraquinate, and broclozone. The invention furthermore relates to a method for controlling undesirable vegetation in burn-down programs, in industrial vegetation management and forestry, in row, vegetable and perennial crops and in turf and lawn.