Screening of Fungicides in Laboratory against Pathogens Causing Fusarium wilt in Rubber Trees

PENG Yun; XIAO Yuming; LIU Yanchao; LI Zengping; WANG Meng; LIANG Xiaoyu; ZHANG Yu

doi:10.15886/j.cnki.rdswxb.2019.03.012

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Fusarium wilt is a new disease found in rubber trees in Hainan, and is caused by Fusarium oxysporum. In order to control the potential threat of this disease, fungicides in laboratory against pathogen Fusarium oxysporum were screened, and their indoor virulence against the pathogen was determined. The results showed that the EC₅₀ values of prochloraz, chlorothalonil, pyraclostrobin and carbendazim were 0.732 8,9.661 7,1.709 4,1.012 4 mg·L^-1, respectively. The co-toxicity coefficient of the mixture of carbendazim and prochloraz（1∶5） showed synergistic effects, and the EC₅₀ value of the mixture was 0.17 mg·L^-1 and the SR value 6.01.

Screening of Fungicides in Laboratory against Pathogens Causing Fusarium wilt in Rubber Trees

College of Plant Protection, Hainan University, Haikou, Hainan 570228, China

Received Date: 2019-06-30

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Abstract: Fusarium wilt is a new disease found in rubber trees in Hainan, and is caused by Fusarium oxysporum. In order to control the potential threat of this disease, fungicides in laboratory against pathogen Fusarium oxysporum were screened, and their indoor virulence against the pathogen was determined. The results showed that the EC₅₀ values of prochloraz, chlorothalonil, pyraclostrobin and carbendazim were 0.732 8,9.661 7,1.709 4,1.012 4 mg·L^-1, respectively. The co-toxicity coefficient of the mixture of carbendazim and prochloraz（1∶5） showed synergistic effects, and the EC₅₀ value of the mixture was 0.17 mg·L^-1 and the SR value 6.01.

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Reference (8)

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[5]	李增平, 张胡焕.5种药剂对2株立枯丝核菌的室内毒力测定[J].热带生物学报, 2010, 1 (1):41-44.
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[8]	刘妍, 张亚, 项雅琴, 等.啶酰菌胺与氟啶胺复配物对水稻纹枯病菌和草莓灰霉病菌的增效作用研究[J].植物保护, 2018, 44 (2):235-240.

[1]
[2]	蒋妮, 叶云峰, 胡凤云, 等.防治肿节风黑线炭疽病菌的药剂筛选[J].热带生物学报, 2014, 5 (3):244-248.
[3]	刘圣明, 海飞, 车志平, 等.4种杀菌剂及其复配剂对番茄灰霉病菌的毒力[J].植物保护, 2017, 43 (2):230-234.
[4]	贺瑞, 赵磊, 符瑞, 等.海南芒果蒂腐病菌对吡唑醚菌酯的抗药性测定[J].植物保护, 2018, 44 (4):188-193.
[5]	李增平, 张胡焕.5种药剂对2株立枯丝核菌的室内毒力测定[J].热带生物学报, 2010, 1 (1):41-44.
[6]	曾耿狄, 符可芯, 刘乐, 等.海南芒果可可球二孢的致病力及其对多菌灵抗性[J].植物保护, 2019, 45 (3):174-178.
[7]	刘浩, 张娜, 阴春晖, 等.两种测定化合物对真菌菌丝生长抑制活性方法的比较[J].天然产物研究与开发, 2009 (4):577-580.
[8]	刘妍, 张亚, 项雅琴, 等.啶酰菌胺与氟啶胺复配物对水稻纹枯病菌和草莓灰霉病菌的增效作用研究[J].植物保护, 2018, 44 (2):235-240.

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Screening of Fungicides in Laboratory against Pathogens Causing Fusarium wilt in Rubber Trees

doi: 10.15886/j.cnki.rdswxb.2019.03.012

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通讯作者: 陈斌, bchen63@163.com

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