Fungicidal Composition with Complex II Inhibitors for Plant Disease Control
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Solution Overview
Problem
Current compositions for controlling plant diseases lack effective solutions for comprehensive control, particularly against plant pathogens with decreased sensitivity to existing fungicides.
Innovation Solution
A composition comprising a specific compound represented by formula (I) combined with one or more mitochondrial electron transport system complex II inhibitors, such as fluxapyroxad, benzovindiflupyr, or pydiflumetofen, is developed to enhance control efficacy against plant diseases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fungicides are used for plant disease control, then application is simple and cost-effective, but control efficacy decreases against pathogens with reduced sensitivity
Solution Approach 1:
The patent combines compound (I) with mitochondrial electron transport system complex II inhibitors (such as fluxapyroxad, benzovindiflupyr, or pydiflumetofen) in a single composition. This merging of two different fungicidal mechanisms creates a synergistic effect that overcomes pathogen resistance to conventional single-mode fungicides, thereby improving control efficacy against pathogens with reduced sensitivity.
Solution Approach 2:
The invention creates a composite fungicidal composition containing compound (I) and complex II inhibitors in specific weight ratios (0.1:99.9 to 50:50). This composite approach integrates multiple active ingredients with different modes of action, enabling the composition to effectively control plant diseases that have developed resistance to individual conventional fungicides.
2Device complexity
If single-ingredient fungicides are used, then composition is simple, but control efficacy against multiple pathogens is insufficient
Solution Approach 1:
The patent develops a multi-functional composition where compound (I) and complex II inhibitors work together to provide broad-spectrum protection against various plant pathogens including fungi, oomycetes, and bacteria. This single composition can control multiple types of plant diseases simultaneously, eliminating the need for separate applications of different single-ingredient fungicides.
3Reliability
If compound (I) is used alone, then application is straightforward, but control efficacy is limited compared to combined treatment
Solution Approach 1:
The patent optimizes the weight ratio parameters of compound (I) and complex II inhibitors to achieve maximum synergistic effect. By carefully controlling the concentration parameters (0.1:99.9 to 50:50 weight ratios), the composition achieves enhanced control efficacy while maintaining practical applicability. This parameter optimization allows the composition to overcome pathogen resistance without requiring overly complex formulation structures.
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 controls plant diseases by targeting mitochondrial electron transport system complex II, providing broad-spectrum protection against pathogens with reduced sensitivity to conventional fungicides.
Implementation Method 1
one or more mitochondrial electron transport system complex II inhibitor(s) selected from Group B
Data Source
AI summary
The present invention provides a composition having excellent control efficacy against plant diseases and a method for controlling plant diseases. A composition for controlling a plant disease comprising a compound represented by formula (I)[wherein each symbol represents the same definition as described in the present description] and one or more mitochondrial electron transport system complex II inhibitor(s) selected from Group B has excellent control effects on plant diseases;Group B: a group consisting of fluxapyroxad, benzovindiflupyr, fluindapyr, pydiflumetofen, 3-(difluoromethyl)-N-(2,3-dihydro-1,1,3-trimethyl-1H-inden-4-yl)-1-methyl-1H-pyrazole-4-carboxamide, a compound represented by formula (1), a compound represented by formula (2), and a compound represented by formula (3)