Sex Pheromone Lure Composition for Ectropis Pest Trapping
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Solution Overview
Problem
Current sex pheromone lures for Ectropis oblique and E. grisescens have limited trapping efficiency due to suboptimal composition and ratios of octadecadiene epoxides, which affects their attractiveness to the pests.
Innovation Solution
A high efficient sex pheromone lure comprising specific regioisomers of octadecadiene epoxides, such as (3Z,6Z,9S,10R)-9,10-epoxy-octadecadiene and (3Z,9Z,6S,7R)-6,7-epoxy-octadecadiene, used in combination, optimized for enhanced trapping activity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional sex pheromone lures use conventional octadecadiene epoxide compositions, then the lure provides basic trapping functionality, but the trapping efficiency is limited and insufficient for effective pest control
Solution Approach 1:
The patent changes the chemical composition parameters of the sex pheromone lure by incorporating specific regioisomers of octadecadiene epoxides ((3Z,6Z,9S,10R)-9,10-epoxy-octadecadiene and (3Z,9Z,6S,7R)-6,7-epoxy-octadecadiene) with optimized ratios. This parameter optimization resolves the contradiction by enhancing trapping efficiency while maintaining reliable attractiveness to the pests.
Solution Approach 2:
The patent creates a composite sex pheromone formulation by combining multiple octadecadiene epoxide regioisomers in specific proportions. This composite approach resolves the technical contradiction by synergistically improving trapping efficiency through the combined effect of different regioisomers while ensuring consistent attractiveness.
2Productivity
If single octadecadiene epoxide components are used in the lure, then the lure composition is simple, but the trapping activity is insufficient compared to combined regioisomer formulations
Solution Approach 1:
The patent merges multiple octadecadiene epoxide regioisomers into a single lure formulation, combining (3Z,6Z,9S,10R)-9,10-epoxy-octadecadiene and (3Z,9Z,6S,7R)-6,7-epoxy-octadecadiene in optimized ratios. This merging strategy resolves the contradiction by achieving superior trapping activity through synergistic combination while keeping the overall formulation relatively simple.
Data Source
AI summary
The present disclosure generally relates to the field of biological control of Ectropis. oblique and Ectropis grisescens as pests in tea plantations, and in particular to a high efficient sex pheromone lures for E. oblique and E. grisescens. By combinating (3Z,6Z,9Z)-octadecatriene with two different configurations of (3Z,9Z)-6,7-epoxy-octadecadiene and (3Z,6Z)-9,10-epoxy-octadecadiene, high efficient sex pheromone lures were obtained. The high efficient sex pheromone lures have significantly improved trapping effect on E. oblique and E. grisescens.