Fungicidal Composition Synergy Reducing Chemical Doses
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Solution Overview
Problem
Current fungicidal compositions often lead to the development of resistant strains and require high doses of chemical products, which can be costly and environmentally harmful, while lacking synergistic effects to effectively control phytopathogenic fungi.
Innovation Solution
A novel fungicidal composition combining a pyridylethylbenzamide derivative with a compound inhibiting methionine biosynthesis, in specific weight ratios, to achieve a synergistic effect that reduces chemical usage and costs, comprising preferred derivatives like N-{2-[3-chloro-5-(trifluoromethyl)-2-pyridinyl]ethyl}-2-trifluoromethylbenzamide and compounds such as cyprodinil or pyrimethanil, optionally with additional fungicides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high doses of single fungicidal products are used, then fungal control effectiveness is improved, but the development of resistant strains increases and environmental harm worsens
Solution Approach 1:
The patent combines two different fungicidal compounds with distinct modes of action (pyridylethylbenzamide derivative and methionine biosynthesis inhibitor) into a single composition. This merging approach provides synergistic fungal control while reducing the need for high doses of individual chemicals, thereby minimizing environmental harm and resistance development.
Solution Approach 2:
The invention creates a composite fungicidal composition containing two chemically distinct compounds (pyridylethylbenzamide derivative and methionine biosynthesis inhibitor) in specific weight ratios. This composite formulation leverages the complementary modes of action of both compounds to achieve enhanced efficacy at lower overall doses.
2Reliability
If high doses of chemical products are applied, then fungal control is improved, but treatment costs increase
Solution Approach 1:
By merging two fungicidal compounds with synergistic interaction, the patent achieves improved fungal control at lower total chemical doses. The synergistic effect means the combination is more effective than the sum of individual components, reducing the overall amount of chemical product needed and thereby lowering treatment costs.
3Ease of operation
If single fungicidal compounds are used, then application simplicity is maintained, but synergistic effect is lost
Solution Approach 1:
The patent merges two fungicidal compounds into a single pre-formulated composition, maintaining application simplicity while achieving synergistic effects. The combined formulation is applied as one product, preserving ease of use, while the synergistic interaction between components enhances fungal control effectiveness.
Data Source
AI summary
A composition comprising at least a pyridylethylbenzamide derivative of general formula (I) (a) and a compound capable of inhibiting the methionine biosynthesis (b) in a (a)/(b) weight ratio of from 0.01 to 20.A composition further comprising an additional fungicidal compound.A method for preventively or curatively combating the phytopathogenic fungi of crops by using this composition.