Trichoderma reesei CSQ4, spore suspension, fermentation liquor and preparation method and application of trichoderma reesei CSQ4

The invention relates to the technical field of plant disease prevention and control, and particularly discloses a trichoderma reesei CSQ4, a spore suspension, a fermentation broth and a preparation method and application of the trichoderma reesei CSQ4, the trichoderma reesei CSQ4 is preserved in the China General Microbiological Culture Collection Center on January 16, 2024, the preservation number is CGMCC No.41042, and the trichoderma reesei CSQ4 is classified and named as trichoderma reesei. The trichoderma reeffii CSQ4 provided by the invention can inhibit the pathogenic bacteria of the camellia oleifera leaf blight, i.e., the physotheca fungus, so that the trichoderma reeffii CSQ4 has the potential of preventing and treating the camellia oleifera leaf blight. 本发明涉及植物病害防治技术领域，具体公开了一种瑞法木霉CSQ4、孢子悬浮液、发酵液及其制备方法和应用，所述瑞法木霉Trichoderma rifaii CSQ4于2024年01月16日保藏于中国微生物菌种保藏管理委员会普通微生物中心，保藏编号为：CGMCC No.41042，分类命名为瑞法木霉Trichoderma rifaii。本发明提供的瑞法木霉CSQ4能够抑制油茶叶枯病病原菌间座壳属真菌，因此有防治油茶叶枯病的潜力。