Guayule Root Extract Composition for Residual Pest Control

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Solution Overview

Problem

The market demands environmentally-friendly alternatives to synthetic nematicides and soil fumigants for controlling plant parasitic nematodes, insects, and other pests, as conventional chemicals face regulatory scrutiny and environmental hazards, and existing biologically derived nematicides lack residual effectiveness and are toxic.

Innovation Solution

A bioactive aqueous composition extracted from guayule (Parthenium argentatum Gray) roots is applied to plants or the environment to control pests, utilizing enzymes and plant hormones for multiple modes of action, including seed treatments and soil applications activated by irrigation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If synthetic contact nematicides and soil fumigants are used, then effective pest control is achieved, but environmental safety and regulatory compliance deteriorate

Engineering Contradiction:
Improvepest control effectivenessVSAvoidenvironmental hazards
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention changes the chemical composition parameters by using naturally occurring compounds (cinnamic acid, tannins, flavonoids) instead of synthetic nematicides, maintaining pest control effectiveness while improving environmental safety and regulatory compliance

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention uses readily available plant materials (guayule, sagebrush, peppermint) as disposable biological control agents that decompose naturally, replacing persistent synthetic chemicals with environmentally benign alternatives

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Object-affected harmful factors

If biologically derived nematicides are used, then environmental safety is improved, but residual effectiveness deteriorates

Engineering Contradiction:
Improveenvironmental safetyVSAvoidresidual control duration
Core Design Contradiction:
Object-affected harmful factorsVSDuration of action of stationary object

Solution Approach 1:

The invention combines multiple plant extracts (guayule, sagebrush, peppermint) containing different active compounds (cinnamic acid, tannins, flavonoids) to create a composite biological nematicide that extends residual effectiveness while maintaining environmental safety

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The plant extracts serve multiple functions: they act as nematicides, fungicides, and growth regulators simultaneously, providing extended protection through multiple modes of action rather than relying on a single mechanism

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If methyl bromide is used, then wide spectrum pest control is achieved, but environmental compliance deteriorates

Engineering Contradiction:
Improvewide spectrum controlVSAvoidozone layer depletion
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention segments the broad-spectrum control function into multiple targeted plant extracts, each addressing specific pests through different active compounds, collectively achieving wide-spectrum control without ozone-depleting substances

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The plant extracts act as intermediary substances that provide the pest control function previously achieved by methyl bromide, serving as a bridge between effective control and environmental compliance

Inventive Principle:
Principle #24Intermediary (Mediator)

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 guayule extract composition provides potent initial control and short-duration residual control of pests, enhancing plant productivity and yield while being safe for the environment.

Implementation Method 1

enzymes and plant hormones in a guayule extract are also greatly involved with multiple modes of action to control or suppress plant parasitic insects

Methodology Applied
Scientific EffectEnzyme activity: Enzyme

Implementation Method 2

enzymes and plant hormones in a guayule extract are also greatly involved with multiple modes of action to control or suppress plant parasitic insects

Methodology Applied
Scientific EffectPlant hormone activity:

Data Source

PatentEP3334274B1Use of compositions for pest control
Publication Date: 2026.03.11 BIODEL AG INC
  • EP3334274B1 patent drawingFigure 1~2
  • EP3334274B1 patent drawingFigure 3~4
  • EP3334274B1 patent drawingFigure 5~6

AI summary

The subject invention provides compositions and methods of using the same for improving plants' defense by employing naturally-derived chemicals. In a specific embodiment, the composition is from Parthenium argentatum Gray, also known as the guayule plant. Preferred compositions can up-or downregulate growth genes responsible for the targeted plants' defense mechanisms in order to create physical and/or chemical barriers, and produce detouring exudates, antagonistic compounds, or fumigating compounds that prevent and treat damages from pests in agronomic or non-agronomic plants.