The identification and screening of fungicides against Fusarium culmorum from stem of walnut

doi:10.14088/j.cnki.issn0439-8114.2020.24.022

HUBEI AGRICULTURAL SCIENCES ›› 2020, Vol. 59 ›› Issue (24): 101-105.doi: 10.14088/j.cnki.issn0439-8114.2020.24.022

• Plant Protection • Previous Articles Next Articles

The identification and screening of fungicides against Fusarium culmorum from stem of walnut

WANG Peng-cheng¹, FANG Ai-ping², QU Ding-bin³, PENG Xin⁴, JIANG Li⁵, JIN Tai-xing⁶, SUN Chang-cheng⁷, YANG Zheng-rong⁸, JIA Qie⁹

1. Hubei Three Gorges Polytechnic, Yichang 443000, Hubei, China;
2. Hekou Forestry Station of Yuan'an County, Yuan'an 444209, Hubei, China;
3. Zigui County Forestry Bureau, Zigui 443600, Hubei, China;
4. Guojiaba Town Forestry Station of Zigui County, Zigui 443621, Hubei, China;
5. Huangliang Town Forestry Station of Xingshan County, Xingshan 443701,Hubei,China;
6. Huangliang Town Agricultural Technology Service Center of Xingshan County, Xingshan 443701, Hubei, China;
7. Xiakou Town Agricultural Technology Service Center of Xingshan County, Xingshan 443701, Hubei, China;
8. Wufeng Tujia Autonomous County Agricultural and Rural Bureau, Wufeng 443413, Hubei, China;
9. College of Horticulture and Gardening, Yangtze University, Jingzhou 434025, Hubei, China

Received:2020-08-10 Online:2020-12-25 Published:2021-01-21

Abstract

Abstract: In recent years, the black rot on young walnut stems has seriously affected the sound development of the industry in this area. In order to clarify the pathogen and improve the effect of managing this disease, identification and screening of the fungicide against the pathogen from walnut young stem were carried out in laboratory. The results showed that the black rot on walnut was mainly caused by Fusarium culmorum and the pathogen was sensitive to different fungicides. Among them, the toxicity of 40% flusilazole emulsifiable concentrate was the strongest one with an EC₅₀ of 0.383 7 μg/mL, followed by 43% tebuconazole suspension with an EC₅₀ of 9.192 1 μg/mL, and 70% thiophanate methyl wettable powder with an EC₅₀ of 2 010.961 μg/mL. In the practice of pathogen control, 40% flusilazole emulsifiable concentrate and 43% tebuconazole suspension should be considered as the main control agents Fusarium culmorum from walnut stem.

Key words: young stem of walnut, Fusarium culmorum, pathogen identification, fungicide screen

CLC Number:

S436
S664.1

WANG Peng-cheng, FANG Ai-ping, QU Ding-bin, PENG Xin, JIANG Li, JIN Tai-xing, SUN Chang-cheng, YANG Zheng-rong, JIA Qie. The identification and screening of fungicides against Fusarium culmorum from stem of walnut[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(24): 101-105.

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The identification and screening of fungicides against Fusarium culmorum from stem of walnut

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