Pyridafol and HPPD-Inhibitor Synergy for Weed Control

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Solution Overview

Problem

Current herbicides often require high doses and have limited effectiveness against various weed species, with existing combinations not fully leveraging synergistic potential to achieve enhanced weed control while maintaining crop tolerance.

Innovation Solution

A herbicidal composition combining pyridafol with HPPD-inhibitor herbicides, which can be applied in a synergistic ratio to achieve enhanced weed control with potentially lower doses, calculated using the Colby Formula to determine expected and observed activity levels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If high doses of single herbicide are used, then weed control effectiveness is improved, but crop tolerance and environmental safety deteriorate

Engineering Contradiction:
Improveweed control effectivenessVSAvoidcrop damage and environmental impact
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent combines pyridafol with HPPD-inhibitor herbicides in a single composition, merging two herbicidal mechanisms of action to achieve enhanced weed control effectiveness while maintaining crop tolerance through synergistic interactions that reduce the need for high doses of individual components

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention creates a composite herbicidal composition integrating pyridafol and HPPD-inhibitor compounds, where the combination produces extended spectrum activity and synergistic effects that improve weed control reliability while reducing harmful impacts on crops and environment compared to high doses of single herbicides

Inventive Principle:
Principle #40Composite materials

2Reliability

If existing herbicide combinations are used, then some weed control is achieved, but synergistic potential is not fully leveraged to achieve enhanced control at lower doses

Engineering Contradiction:
Improveweed control effectivenessVSAvoidherbicide dose requirement
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent optimizes the ratio and concentration parameters of pyridafol and HPPD-inhibitor components in the composition, adjusting formulation parameters to maximize synergistic effects and achieve enhanced weed control at lower total doses compared to individual herbicides applied alone

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

By merging pyridafol with HPPD-inhibitor herbicides in a coordinated composition, the invention leverages synergistic interactions between the two active ingredients to achieve superior weed control effectiveness while reducing the quantity of substance required compared to using single herbicides at high doses

Inventive Principle:
Principle #5Merging (Combining)

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 of pyridafol and HPPD-inhibitor herbicides demonstrates synergistic effects, providing effective weed control with increased crop tolerance and extended spectrum activity, allowing for reduced individual component usage while maintaining or exceeding expected herbicidal activity.

Implementation Method 1

pyridafol is a photosynthetic electron transport inhibitor at the photosystem II

Methodology Applied
Scientific EffectPhotosynthetic electron transport inhibition: Photosynthesis

Implementation Method 2

herbicides having the modes of action as specified herein are particularly efficacious at mediating such weed control

Methodology Applied
Scientific EffectEnzyme inhibition: Enzyme

Data Source

PatentUS12096772B2Herbicidal compositions
Publication Date: 2024.09.24 SYNGENTA CROP PROTECITON AG
  • US12096772B2 patent drawing
  • US12096772B2 patent drawing

AI summary

The present disclosure relates to herbicidal combinations and their use in controlling plants or inhibiting plant growth. In particular, herbicidal combinations comprising pyridafol in combination with at least one further herbicide that is a HPPD-inhibitor herbicide.