防控沙棘枯萎病的化学杀菌剂和生物杀菌剂的筛选和应用

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中图分类号：S482 文献标识码：A文章编号：2097-1354（2025）05-0055-11开放科学（资源服务）标识码（OSID）：

Abstract： Sea buckthorn stem wilt，also known as Sea buckthorn stem dry rot or Sea buckthorn stem wilt，is a devastating disease of Sea buckthorn and is called“the cancer of Sea buckthorn ”. For the pathogen Fusarium sporotrichioides ，causing the sea buckthorn stem wilt disease，the indoor growth rate determination method was used to screen indoor fungicides and biological agents，and pot efficacy tests were conducted. The fluvazol EC had the best toxicity against the mycelium of F . sporotrichioides，with an EC50 value of 13.089μg/mL ，followed by carbendazim suspension concentrate，with an EC50 value of 51.732μg/mL. .The toxic effects of the wettable powder of Carbendazim，the suspension agent of Pyrimethanil，and the wettable powder of Carbendazim were also good，with EC50 value of 114.202μg/mL ， 120.178μg/mL ，and 135.274μg/mL ，respectively. The biological agents with better antibacterial effects against F . sporotrichioides were anti-repeat microecological agent，lvkangwei microbial agent，105 billion cfu /g Paenibacillus polymyxa and Bacillus subtilis WP，the antibacterial rates were 99.6% ， 97.8% ，and 82.6% ，respectively.The results of the pot cultivation control experiments show that the control eficacy of anti-repeat microecological agent， lvkangwei microbial agent， 105 billion cfu /g Paenibacillus polymyxa and Bacillus subtilis WP were 67.8% ， 65.6% ，and 57.0% ，respectively. These results provide important basis for the control of Sea buckthorn stem wilt.

Key words： Seas buckthorn stem wilt; Fusarium sporotrichioides ; fungicides; toxicity test; biological agents; pesticide efficacy test

沙棘是一种多年生落叶性灌木，广泛分布于欧亚大陆，我国从东北、华北到西北、西南地区均有大面积沙棘栽培和种植[1]。（剩余9731字）