Alkali Carbonate Composition for Grapevine ESCA Disease Control
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Solution Overview
Problem
Grapevine ESCA disease, black dead arm disease, and Eutypa dieback disease pose significant challenges due to their complex nature and the difficulty in controlling symptoms, especially since existing control agents are toxic and ineffective, and current identification methods are time-consuming.
Innovation Solution
A composition containing alkali metal carbonates or alkali metal hydrogen carbonates is used to control these diseases by applying it to grapevines, with a method to identify infected grapes by measuring trunk circumference growth rates, allowing for effective symptom suppression and rapid identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sodium arsenite is used as a control agent, then the control effect against grapevine ESCA disease is effective, but the toxicity to human, animals, and the environment becomes a problem
Solution Approach 1:
The patent changes the chemical composition parameters by replacing toxic sodium arsenite with a combination of biocidal inorganic compounds (such as copper compounds, sulfur compounds) and organic compounds (such as benzimidazole derivatives, triazole derivatives). This parameter substitution maintains the control effect while eliminating the toxicity problem.
Solution Approach 2:
The patent employs a composite control agent formulation that combines multiple biocidal inorganic compounds with organic compounds. This composite approach synergistically maintains effective disease control while reducing reliance on highly toxic single substances like sodium arsenite.
2Measurement precision
If a follow-up examination is conducted for a long period to identify infected grapes, then the identification accuracy is improved, but the time consumption increases
Solution Approach 1:
The patent applies control agents preventively to grapevines before disease symptoms fully develop. By treating the vines early and monitoring for symptom development, the method identifies infected grapes more quickly without sacrificing accuracy, as the control agent application creates a reference point for evaluating treatment response.
Solution Approach 2:
The patent establishes a feedback mechanism where the development or suppression of disease symptoms after control agent application serves as an indicator of infection status. This feedback loop allows for quicker identification of infected grapes by observing whether symptoms appear or recede following treatment, reducing the need for extended examination periods.
Data Source
AI summary
Provided is a composition for controlling at least one disease selected from grapevine ESCA disease, black dead arm, and Eutypa dieback disease, the composition containing at least one selected from the group consisting of alkali metal carbonates and alkali metal hydrogen carbonates as an active ingredient.