Acta Agriculturae Zhejiangensis ›› 2025, Vol. 37 ›› Issue (3): 736-744.DOI: 10.3969/j.issn.1004-1524.20240225

• Review • Previous Articles    

Research progress on biological control of rice blast

WU Jiaqi1(), ZHU Xueming2, BAO Jiandong2, WANG Caoyi3, ZHOU Xiaoyu4, LI Lin2,*(), LIN Fucheng2,*()   

  1. 1. College of Life Sciences, China Jiliang University, Hangzhou 310018, China
    2. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    3. College of Modern Agriculture, Zhejiang A&F University, Hangzhou 311300, China
    4. Plant Protection & Quarantine and Tillage Management Station of Huzhou, Huzhou 313000, Zhejiang, China
  • Received:2024-03-08 Online:2025-03-25 Published:2025-04-02

Abstract:

Magnaporthe oryzae is a plant pathogenic fungus that seriously threatens the growth and development of cereals and causes yield reduction. In recent years, rice blast has spread in more than 85 countries, resulting in an annual decline of about 30% in rice yields, with severe epidemics causing rice yields to be lost by up to 80%. Although fungicides can briefly control the epidemic of rice blast, misuse and excessive use of fungicides lead to soil pollution and food security risks. Therefore, it is urgent to develop green biological control agents instead of chemical fungicides to prevent and control plant diseases. Biological control is an environmentally friendly and promising strategy for plant disease control. Studies have found that many microorganisms and their secondary metabolites and plant-derived bioactive substances can significantly inhibit the growth of Magnaporthe oryzae and are environmentally friendly. In this paper, the infection routes of Magnaporthe oryzae and the effective prevention and control methods of rice blast were reviewed. The mechanism of microorganisms and their secondary metabolites and plant-derived bioactive substances in the prevention and control of rice blast was discussed, which will provide new ideas and insights for the green comprehensive prevention and control of rice blast.

Key words: rice blast, biological control, microorganism, secondary metabolite

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