Ant Control Composition Using Hydrocarbons to Disrupt Nestmate Recognition

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Solution Overview

Problem

Existing ant control methods, such as the use of insecticides and nestmate recognition pheromones, are ineffective in reducing ant populations and can lead to environmental harm, resistance development, and temporary control effects, especially for supercolonies, and bait agents lose attractiveness over time.

Innovation Solution

A composition containing hydrocarbon compounds with 19 to 50 carbon atoms, saccharides, and surfactants is used to disrupt nestmate recognition and induce attacks among ants, combined with a gelling agent to facilitate colony disruption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If insecticides are used to control ants, then ant populations can be reduced, but environmental harm increases and resistance development occurs

Engineering Contradiction:
Improveant population reductionVSAvoidenvironmental harm
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The invention extracts and utilizes the natural nestmate recognition pheromone (hydrocarbon compound) that ants already produce and use for communication. By applying this extracted natural substance to ant nest entrances, the system leverages the ants' own chemical language to achieve control without introducing external toxic insecticides into the environment.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The hydrocarbon compound acts as an intermediary substance that mediates ant behavior by interfering with their nestmate recognition system. Instead of using direct toxic killers, the pheromone application creates confusion in ant communication, causing workers to attack each other or fail to recognize the nest entrance, thereby achieving population control through behavioral disruption rather than chemical poisoning.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If nestmate recognition pheromones are used to control ants, then ant populations can be reduced, but control effect is temporary

Engineering Contradiction:
Improveant population reductionVSAvoidcontrol effect duration
Core Design Contradiction:
ProductivityVSDuration of action of stationary object

Solution Approach 1:

The invention applies the nestmate recognition pheromone (hydrocarbon compound) in advance at the nest entrance before ants can naturally establish their recognition patterns. This preliminary application creates a persistent chemical barrier that continuously confuses incoming ants about nest identity, preventing them from recognizing legitimate nestmates and maintaining prolonged control effect rather than temporary disruption.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If bait agents are used to control ants, then ant populations can be reduced, but bait agents lose attractiveness over time

Engineering Contradiction:
Improveant population reductionVSAvoidbait attractiveness
Core Design Contradiction:
ProductivityVSDuration of action of moving object

Solution Approach 1:

Instead of using external bait substances that ants may become satiated with or lose interest in, the invention extracts and applies the natural hydrocarbon pheromones that ants already use for recognition. These endogenous chemical signals maintain their attractiveness and relevance to ants over time because they are part of the ants' natural chemical communication system, preventing the loss of effectiveness that occurs with conventional baits.

Inventive Principle:
Principle #2Taking out (Extraction)

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 composition effectively reduces ant populations by inducing intraspecific attacks and disrupting supercolony networks without high toxicity, preventing ant entry into homes and damaging agricultural areas.

Implementation Method 1

a hydrocarbon compound having 19 to 50 carbon atoms and having physiological activity on the ant belonging to the family Formicidae, that is, having an activity of disrupting nestmate recognition

Methodology Applied
Scientific EffectNestmate recognition disruption:

Implementation Method 2

a surfactant

Methodology Applied
Scientific EffectSurface tension reduction: Surfactant

Data Source

PatentEP4702842A1Composition, ant control agent, and control method for ants
Publication Date: 2026.03.04 SHIN ETSU CHEMICAL CO LTD
  • EP4702842A1 patent drawingFigure 1~2
  • EP4702842A1 patent drawingFigure 3~4
  • EP4702842A1 patent drawingFigure 5~6

AI summary

There are provided a composition having physiological activity on an ant belonging to the family Formicidae, an ant control agent effective for ant control, and an ant control method. More specifically, there are provided a composition including at least one hydrocarbon compound having 19 to 50 carbon atoms and having physiological activity on an ant belonging to the family Formicidae, a saccharide and a surfactant; an ant control agent for controlling an ant belonging to the family Formicidae, the agent including the composition and a gelling agent; and a method for controlling an ant belonging to the family Formicidae using the ant control agent.