Microbial biopesticides to control plant pathogens and insects in crops have had significant success. However, there have been relatively few successes for microbial bioherbicides in crops, despite considerable numbers of publications and commercial product introductions in this area. Marketed microbial bioherbicide products for use in agriculture have been largely unsuccessful. This article covers the potential advantages of successful microbial bioherbicides, as well as the biological and technical issues that have limited their success. Technologies to overcome the problems that have limited the success of these products are discussed. The many advantages of using killed microbial products (e.g. cell-free filtrates) over living microbial products as bioherbicides are detailed. A commercialized mycoherbicide that has been selected for in the laboratory for control of the parasitic weed Striga hermonthica is being used with some success in Africa, indicating that non-transgenic modification of the genetics of bioherbicide microbes for improved efficacy is acceptable to some regulatory authorities. Genetic modifications to improve efficacy and host range, as well as improved application technology to greatly reduce the amount of product needed are two technologies that are likely to expand the use of microbial bioherbicides in the future. © 2023 Society of Chemical Industry.

中文翻译：

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为什么没有广泛成功的微生物除草剂用于作物杂草管理？

用于控制农作物中的植物病原体和昆虫的微生物生物农药已取得重大成功。然而，尽管该领域有大量出版物和商业产品介绍，但微生物生物除草剂在作物上的成功相对较少。市售的用于农业的微生物生物除草剂产品基本上不成功。本文介绍了成功的微生物生物除草剂的潜在优势，以及限制其成功的生物学和技术问题。讨论了克服限制这些产品成功的问题的技术。详细介绍了使用灭活微生物产品（例如无细胞滤液）相对于活微生物产品作为生物除草剂的许多优点。一种已在实验室中用于控制寄生杂草独脚金的商业化真菌除草剂在非洲的使用取得了一些成功，这表明一些监管机构可以接受对生物除草剂微生物的基因进行非转基因改造以提高功效。提高功效和宿主范围的基因改造，以及大大减少所需产品量的改进应用技术，是未来可能扩大微生物除草剂用途的两项技术。© 2023 化学工业协会。