Acta Agriculturae Zhejiangensis ›› 2026, Vol. 38 ›› Issue (5): 1048-1060.DOI: 10.3969/j.issn.1004-1524.20250334

• Review • Previous Articles    

Research progress on plant extracts for controlling root-knot nematodes

HUO Wei1(), LI Shanshan1, CHEN Jun1, WU Xiaoli1, LYU Jinwei1, LI Yujuan2, CHEN Huili1,*()   

  1. 1 School of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
    2 Research Institute for Northern Agriculture, Charles Darwin University, Brinkin 0810, Northern Territory, Australia
  • Received:2025-04-25 Online:2026-05-25 Published:2026-06-02

Abstract:

Root-knot nematode is one of the most harmful plant pests. At present, chemical nematicides remain the predominant methods for controlling root-knot nematodes. However, due to challenges such as inadequate environmental compatibility, potential harm to non-target organisms, and the development of drug resistance, chemical nematicides can no longer meet the demands of modern agricultural and forestry production development. Extracting natural products with nematicidal activity from plants for the prevention and control of root-knot nematodes is a new strategy that conforms to the green prevention and control of crop diseases and pests. This article reviewed plant resources with nematode-killing effects, their active ingredients and their extraction methods, and discussed the physiological mechanisms and related evaluation methods of plant extracts in suppressing and killing root-knot nematodes. Meanwhile, in light of the existing problems, the following suggestions were put forward: expand the scope of screening and development of plant extracts, enhance the understanding of the active ingredients and mechanisms of plant extracts, improve and optimize the extraction methods of effective ingredients, and further promote the practical application of plant-derived nematicidal pesticides, so as to provide a scientific basis for the development of plant-derived nematicides and promote the sustainable development of agricultural ecosystem.

Key words: root-knot nematode, plant extract, extraction method, active ingredient, action mechanism

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