Nematicidal compositions
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Solution Overview
Problem
Existing agricultural and horticultural practices lack effective, broad-spectrum nematicidal compounds that can control plant parasitic nematodes without harming non-target organisms.
Innovation Solution
Utilization of 3-(difluoromethyl)-N-methoxy-1-methyl-N-[1-methyl-2-(2,4,6-trichloro-phenyl)ethyl]-1H-pyrazole-4-carboxamide, a compound with anti-nematode activity, for controlling nematodes by applying it to plants, soil, or plant propagation material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing chemical nematicidal compounds are used to control plant parasitic nematodes, then nematode control efficacy is improved, but toxicity to non-target organisms increases
Solution Approach 1:
The patent modifies the chemical structure of pyrazole carboxamide compounds by introducing specific substituents (difluoromethyl group at position 3, trichlorophenyl group at N-1 position) to alter their biological activity profile. These parameter changes in molecular structure result in enhanced nematicidal activity while reducing toxicity to non-target organisms, resolving the contradiction between efficacy and safety
2Adaptability or versatility
If broad-spectrum nematicidal compounds are used to control different nematode strains, then spectrum of activity is improved, but selectivity and safety decrease
Solution Approach 1:
The patent describes pyrazole carboxamide compounds that exhibit multi-functionality by demonstrating activity against diverse nematode species (Meloidogyne, Heterodera, Pratylenchus, Rotylenchulus, Belonolaimus, Hoplolaimus) while maintaining selective toxicity. The molecular structure is designed to target nematode-specific biological pathways, enabling broad-spectrum control without harming beneficial organisms
3Productivity
If high concentrations of nematicidal compounds are applied to achieve effective control, then nematode mortality is improved, but environmental safety and non-target organism impact worsen
Solution Approach 1:
The patent achieves enhanced nematicidal activity through specific molecular modifications (difluoromethyl and trichlorophenyl substituents) that increase the compound's potency. This allows effective nematode control at lower application rates, thereby improving environmental safety and reducing impact on non-target organisms while maintaining high productivity
Data Source
AI summary
The present invention relates to the use of N-methoxy(phenylethyl)-pyrazole carboxamides for the control of nematodes in agriculture and as antihelminthic agents against endoparasites in animals and humans, as well as compositions comprising such compounds. The present invention 5 further relates to the use of these compounds or compositions for controlling nematodes and/or helminths, in particular for controlling plant parasitic nematodes, and to the use of these compounds in preparing nematicidal and/or antihelminthic compositions.