Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (5): 37-42.doi: 10.11924/j.issn.1000-6850.casb2021-0515

Special Issue: 生物技术 园艺

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The Disinfection Effect of Allyl Isothiocyanate Applied in Nursery Greenhouse

ZHAO Liqun1(), TIAN wen2, TIAN Yanan1, CAO Lingling1, XU Xiulan3()   

  1. 1Beijing Agricultural Technology Extension Station, Beijing 100029
    2College of Plant Pathology, China Agricultural University, Beijing 100093
    3Beijing Vegetable Research Center, Supervision Inspection and Test Center of Vegetable Seed Quality/Ministry of Agriculture and Rural Affairs, Beijing 100097
  • Received:2021-05-17 Revised:2021-07-11 Online:2022-02-15 Published:2022-03-17
  • Contact: XU Xiulan E-mail:zhaoliqun2009@163.com;xuxiulan@nercv.org

Abstract:

Allyl isothiocyanate is a secondary metabolite extracted from Brassicaceae plants and used as a new pesticide with features of quick-acting, high-efficiency and low-toxicity. Three greenhouses from Beijing Daxing and Tongzhou were selected for the testing. The efficacy of Allyl isothiocyanate on greenhouse disinfection by spraying was studied. By comparing the population and type of microorganisms of indoor environment, facilities and equipment surface before and after the treatment, the results showed that the amount of fungi and bacteria in the air reduced significantly after disinfection treatment. The total amount of bacteria on the surface of the greenhouse film and the seedbed decreased, and the number of bacteria before and after disinfection on the surface of some greenhouse nursery beds was significantly different; the dominant fungi isolated in this experiment were Alternaria spp., Curvularia spp., Rhizopus spp., Aspergillus spp. and Penicillium spp. Further test identified plant pathogenic fungi Alternaria tenuissima and Alternaria alternate, and both fungi reduced in population and isolation frequencies after the disinfection treatment. This result indicates that Allyl isothiocyanate application is an effective way for greenhouse disinfection.

Key words: Allyl isothiocyanate, intensive seedling, greenhouse, greenhouse disinfection, alternaria

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