Use of propane tricarboxylic acid in the control of plant parasitic nematodes

By using propanetricarboxylic acid as the active substance for controlling plant parasitic nematodes, determining its lethal concentration, and applying an effective concentration of aqueous solution, the problems of drug resistance and environmental safety of existing chemical pesticides are solved, providing a novel biological pesticide solution and achieving highly efficient control of various nematodes.

CN122207690APending Publication Date: 2026-06-16SHANDONG ACADEMY OF PESTICIDE SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG ACADEMY OF PESTICIDE SCI
Filing Date
2026-03-13
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing chemical pesticides pose problems such as resistance, residues, and environmental safety in the control of plant parasitic nematodes, necessitating the development of novel active substances with novel structures and different mechanisms of action.

Method used

Propane tricarboxylic acid was used as the active substance for controlling plant parasitic nematodes. Its median lethal concentration (LC50) against southern root-knot nematode, weevils root-knot nematode and pine wood nematode was determined, and control was achieved by treating plants or soil with an effective concentration of propane tricarboxylic acid aqueous solution.

Benefits of technology

Propane tricarboxylic acid exhibits significant toxic activity against a variety of plant parasitic nematodes, expanding its application scope, providing new candidate compounds for nematicides, solving the problem of drug resistance, and possessing environmentally friendly characteristics.

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Abstract

This invention relates to the field of biopesticide technology and discloses the application of propane tricarboxylic acid in the control of plant parasitic nematodes, wherein the plant parasitic nematode is at least one of *Symplocos spp.*, *Eriocheir sinensis*, or *Pinus pineatus*, and the chemical formula of the propane tricarboxylic acid is C₆H₈O₆. The concentration of propane tricarboxylic acid in the agent is 100-800 ppm. When the plant parasitic nematode is *Symplocos spp.*, the concentration of propane tricarboxylic acid is 150-500 ppm. The median lethal concentration (LC₅₀) of propane tricarboxylic acid against *Symplocos spp.* is 200-300 ppm. When the plant parasitic nematode is *Eriocheir sinensis* root-knot nematode, the concentration of propane tricarboxylic acid is 200-500 ppm. The application of this propane tricarboxylic acid in the control of plant parasitic nematodes provides a novel and previously undiscovered use for propane tricarboxylic acid, and for the first time, it has been discovered and confirmed to have significant toxic activity against a variety of plant parasitic nematodes, thus expanding the application scope of this compound.
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