Cotton Boll Weevil Trap with Segmented Inlet and Localized Insecticide
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Solution Overview
Problem
Existing cotton boll weevil traps face issues such as incomplete insect capture due to blocked inlet holes and interference with pheromone diffusion, and pose risks to humans and animals due to pesticide exposure, with limited service life and waste management challenges.
Innovation Solution
A trap design featuring a central body with insect entry holes, a conical base for pheromone and insecticide dispensers positioned away from the capture area, and a transparent lid for venting, using removable and renewable attractants and insecticides, and a polyurethane foam strip with kairomones to enhance attraction and minimize contact risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the inlet holes are positioned close to the capture area to facilitate insect entry, then the capture efficiency is improved, but the holes become blocked by accumulated insects and interfere with pheromone diffusion
Solution Approach 1:
The trap is divided into distinct functional zones: an inlet zone with holes for insect entry, a capture chamber for accumulating dead insects, and a pheromone dispenser zone positioned separately. This spatial segmentation prevents blocked inlet holes while maintaining effective pheromone diffusion to the surrounding environment.
Solution Approach 2:
The inlet holes are positioned on the lateral surface of the trap body rather than at the top or bottom, creating a three-dimensional distribution of entry points. This allows insects to enter from multiple directions while maintaining clear pathways that are not blocked by accumulated insects in the capture chamber.
2Productivity
If pesticide is applied extensively on the trap surface to kill insects effectively, then the pest control effectiveness is improved, but the risk to humans and animals increases
Solution Approach 1:
Pesticide is applied locally and selectively on specific surfaces where insects contact them after entering the trap, rather than uniformly across the entire trap. This localized application maintains effective pest control while minimizing exposure risks to humans and animals who may come into contact with the trap.
Solution Approach 2:
The trap structure itself acts as an intermediary that guides insects through a controlled path: they enter through inlet holes, move through a tunnel, and contact pesticide-treated surfaces only after being attracted by pheromones and having their flight paths restricted. This intermediary structure reduces unnecessary pesticide exposure while maintaining control effectiveness.
3Productivity
If the trap structure is made complex to improve capture and kill mechanisms, then the pest control performance is improved, but the manufacturing cost and complexity increase
Solution Approach 1:
The trap body serves multiple functions simultaneously: it acts as the main structural support, provides the capture chamber for accumulating insects, serves as the diffuser for pheromones through its lateral holes, and contains the pesticide application surfaces. This multi-functionality reduces the need for separate components and simplifies the overall structure.
Solution Approach 2:
The inlet holes, capture chamber, and pheromone dispenser are merged into a single integrated trap body structure rather than being separate components. This consolidation simplifies manufacturing while maintaining the complex functional performance needed for effective pest control.
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 trap effectively captures and kills cotton boll weevils with reduced escape and pheromone interference, while minimizing human exposure to pesticides and extending service life, with a design that prevents waste accumulation and maintains effective pest control.
Implementation Method 1
uses pheromones (chemical substance secreted by an individual of an species that is capable of causing a certain kind of behavior in other individuals of the same species) and/or kairomones (chemical substances produced by an organism which can be perceived by another organism)
Implementation Method 2
it carries out control operations, because it contains an insecticide supplying means acting by contact, inside the capture chamber
Data Source
AI summary
A trap for mass capturing and controlling the insect called “cotton boll weevil”, comprising a tubular central body (1) having a bottom section provided with holes (11), a housing formed by a perforated lid (7) and a base or bottom lid (3) provided with holes (3B) and further including one or more openings (12) to allow insect entering the housing from the bottom section (1); b) an insecticide dispenser section (4) inside the housing, c) a hole section for venting and discharging vapors (5) located at a position that is farther from the base or bottom lid than the insecticide dispenser (4); d) a perforated vessel (8) to contain an attractant diffuser (14) outside the housing and above it, and e) a closure (9) of the perforated vessel (8) at its upper end.