Insect Control System Using Lure and Precise Cooling
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Solution Overview
Problem
Current methods for controlling fruit flies, particularly tephritid fruit flies, are inadequate in effectively managing insect infestations in fruit storage and transportation, leading to significant losses due to insect presence and potential re-infestation during cooling processes.
Innovation Solution
A pest control system comprising a lure made of wax, oil, ethyl methyl eugenol, and spinosad, combined with a cooling system that cools environmental air to lethal temperatures above ice crystallization but below freezing, ensuring insect elimination while preserving fruit integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cooling temperature is increased to eliminate insects, then insect elimination effectiveness is improved, but risk of fruit freezing increases
Solution Approach 1:
The patent applies parameter changes by precisely controlling the cooling temperature within a specific range (32°F to 39°F) and adjusting treatment duration based on fruit type and insect load. This resolves the contradiction by finding optimal temperature parameters that kill insects while preventing fruit freezing, transforming the harmful extreme-temperature approach into a controlled parameter-based solution.
Solution Approach 2:
The patent implements dynamics by continuously monitoring temperature and adjusting cooling intensity during treatment. The system dynamically adapts cooling parameters based on real-time conditions, allowing the temperature to fluctuate within the safe range to maintain insect lethality while preventing fruit damage, thus resolving the static contradiction between killing efficiency and safety.
2Reliability
If cooling temperature is decreased to ensure insect lethality, then insect death rate is improved, but fruit quality degradation increases
Solution Approach 1:
The patent resolves this contradiction by changing the temperature parameter from sub-freezing extremes to a moderate range (32°F to 39°F), and by adjusting the time parameter to optimize both insect mortality and fruit quality preservation. This parameter optimization ensures sufficient insect death while preventing fruit tissue damage from excessive cold exposure.
Solution Approach 2:
The patent applies preliminary action by pre-cooling fruit before the main cooling treatment and then gradually returning to storage temperature afterward. This preparatory and follow-up temperature management protects fruit quality while ensuring the main treatment achieves sufficient insect lethality, resolving the contradiction between extreme treatment effectiveness and product preservation.
3Reliability
If conventional cooling methods are used, then energy consumption is reduced, but insect control effectiveness is insufficient
Solution Approach 1:
The patent resolves this contradiction by optimizing cooling parameters (temperature range of 32°F to 39°F, controlled duration) to achieve insect mortality at lower energy input than conventional sub-freezing methods. By changing from extreme-temperature parameters to optimized moderate parameters, the system maintains effectiveness while reducing energy consumption.
Solution Approach 2:
The patent replaces the conventional mechanical cooling system with extended-duration moderate cooling with a lure-based attractant system. This substitution changes the mechanism from forceful cold penetration to a combination of chemical attraction and prolonged gentle cooling, achieving better insect control with lower energy input.
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 system effectively attracts and eliminates fruit flies, preventing re-infestation during storage and transportation, while being environmentally friendly and USDA-certified organic, with the lure's composition controlling volatilization and toxicity, ensuring long-term effectiveness and market access to previously restricted areas.
Implementation Method 1
cooling system configured to cool environmental air temperature to a range below a temperature lethal to insects and above the ice crystallization temperature of a fruit
Implementation Method 2
the lure's composition controlling volatilization and toxicity
Data Source
AI summary
A system for controlling insects, comprising a first lure module for attracting insects to eat a toxicant and a second cooling module for lowing environmental temperature to a temperature lethal to insects but above the ice crystallization of fruit. The lure comprises: wax; oil; ethyl methyl eugenol or other suitable attractant; and spinosad or other suitable toxicant.