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中国农学通报 ›› 2023, Vol. 39 ›› Issue (11): 108-112.doi: 10.11924/j.issn.1000-6850.casb2022-0409

• 植物保护 • 上一篇    下一篇

防治小麦纹枯病菌和玉米茎基腐病菌的药剂筛选及复配增效评价

纪祥龙1(), 王开运2, 武玉国2, 姜莉莉3()   

  1. 1 山东省农业生态与资源保护总站,济南 250013
    2 山东农业大学植物保护学院,山东泰安 271018
    3 山东省果树研究所,山东泰安 271000
  • 收稿日期:2022-05-19 修回日期:2022-07-30 出版日期:2023-04-15 发布日期:2023-04-10
  • 通讯作者: 姜莉莉,女,1986年出生,助理研究员,博士,主要从事果树植保研究工作。通信地址:271000 山东省泰安市泰山区龙潭路66号 山东省果树研究所,Tel:0538-8266607,E-mail:gssjianglili@shandong.cn
  • 作者简介:

    纪祥龙,男,1983年出生,高级农艺师,博士,主要从事农业绿色生产技术研究与推广工作方面的。通信地址:250013 山东省济南市历城区工业北路200号 山东省农业生态与资源保护总站,Tel:0531-67866285,E-mail:

  • 基金资助:
    国家公益性行业(农业)科研专项“黄淮流域小麦玉米水稻田间用节水节肥节药综合技术方案”(201503130)

Screening and Synergistic Evaluation of Fungicides Against Rhizoctonia cerealis on Wheat and Fusarium graminearum on Maize

JI Xianglong1(), WANG Kaiyun2, WU Yuguo2, JIANG Lili3()   

  1. 1 Shandong Agricultural Ecology and Resource Protection Station, Ji’nan 250013
    2 College of Plant Protection, Shandong Agricultural University, Tai’an, Shandong 271018
    3 Shandong Institute of Pomology, Tai’an, Shandong 271000
  • Received:2022-05-19 Revised:2022-07-30 Online:2023-04-15 Published:2023-04-10

摘要:

采用生长速率法,测定不同杀菌剂对小麦纹枯病菌和玉米茎基腐菌的室内毒力。针对高效药剂,以孙云沛法评价各配比的增效作用。结果表明,己唑醇和咯菌腈对小麦纹枯病菌的室内毒力最高,EC50值分别为0.094 mg/L和0.312 mg/L;咪鲜胺和己唑醇对玉米茎基腐病菌的室内毒力最高,EC50值分别为0.088 mg/L和0.593 mg/L。己唑醇和咯菌腈按照不同比例复配对小麦纹枯病菌没有明显的增效作用。咪鲜胺和己唑醇按照1:5、1:2和1:1比例复配对玉米茎基腐病菌均表现出明显的增效效果,其中1:5配比的共毒系数为212.2,增效作用最为显著,生产上可考虑用于上述病害防治。

关键词: 小麦纹枯病菌, 玉米茎基腐病菌, 己唑醇, 咪鲜胺, 室内毒力, 菌丝生长

Abstract:

The indoor toxicity of different fungicides against Rhizoctonia cerealis on wheat and Fusarium graminearum on maize were measured by growth rate method. For fungicides with high efficiency, Sun Johnson’s method was used to evaluate the synergistic effect of each ratio. The results showed that, hexaconazol and fludioxonil had the highest indoor toxicity to R. cerealis, with EC50 value of 0.094 mg/L and 0.312 mg/L, respectively. The indoor toxicity of prochloraz and hexaconazol to F. graminearum was the highest; with EC50 value of 0.088 mg/L and 0.593 mg/L, respectively. The combination of hexaconazol and fludioxonil in different ratios exhibited no obvious synergistic effect on R. cerealis. The combination of prochloraz and hexaconazol at the ratio of 1:5, 1:2 and 1:1 showed obvious synergistic effect. Among which the 1:5 ratio had the co-toxicity coefficient of 212.2, and its synergistic effect was most significant, which could be considered for the prevention and control of the above diseases in production.

Key words: Rhizoctonia cerealis on wheat, Fusarium graminearum on maize, hexaconazole, prochloraz, indoor toxicity, mycelial growth