| 吡唑醚菌酯对两种优稀水果病原菌的毒力测定及田间防治效果 |
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| 引用本文： | 宋晓兵,黄峰,罗小玲,林培华,彭埃天,凌金锋,崔一平.吡唑醚菌酯对两种优稀水果病原菌的毒力测定及田间防治效果[J].中国农学通报,2022,38(27):125-128. |
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| 作者姓名： | 宋晓兵 黄峰 罗小玲 林培华 彭埃天 凌金锋 崔一平 |
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| 作者单位： | 1.广东省农业科学院植物保护研究所/农业农村部华南果蔬绿色防控重点实验室/广东省植物保护新技术重点实验室,广州 5106402.德庆县农业技术推广中心,广东德庆 526600 |
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| 基金项目： | 广东省农业科学院协同创新中心项目“动植物重大生物灾害防控研究”(XTXM202202);广东省现代农业产业技术体系建设专项“柑橘芒果产业技术体系创新团队建设”(2022KJ108);广东省农业农村厅政府采购项目“植物疫情防控新技术研究与特色小宗作物用药登记开发”(0835-200Z22802671) |
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| 摘 要： | 为推荐登记优稀水果重要病害的防治用药,有效缓解小宗作物病害防治缺药或无药可用的现状。采用室内毒力测定及田间药效试验,评价30%吡唑醚菌酯悬浮剂防治黄皮炭疽病和番石榴叶斑病的防治效果及安全性。试验结果表明,吡唑醚菌酯对黄皮炭疽病菌和番石榴叶斑病菌菌丝生长均有较好的抑制作用,EC50分别为0.0321 µg/mL和2.0167 µg/mL,均显著优于对照药剂嘧菌酯的抑菌效果;30%吡唑醚菌酯悬浮剂有效成分用量250 mg/kg对黄皮炭疽病和番石榴叶斑病具有较好的田间防治效果,施药处理3次后对2种果树病害的防治效果分别达到78.68%和77.45%,显著优于对照药剂25%吡唑醚菌酯悬浮剂200 mg/kg的处理。30%吡唑醚菌酯悬浮剂对黄皮炭疽病和番石榴叶斑病均具有较好的防治效果,值得应用于两种果树病害的防治与示范推广。
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| 关 键 词： | 吡唑醚菌酯 黄皮炭疽病 番石榴叶斑病 毒力测定 化学防治 |
| 收稿时间： | 2021-10-20 |
Pyraclostrobin: Toxicity Determination and Control Effect on the Pathogens of Two Rare Fruits |
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| SONG Xiaobing,HUANG Feng,LUO Xiaoling,LIN Peihua,PENG Aitian,LING Jinfeng,CUI Yiping.Pyraclostrobin: Toxicity Determination and Control Effect on the Pathogens of Two Rare Fruits[J].Chinese Agricultural Science Bulletin,2022,38(27):125-128. |
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| Authors: | SONG Xiaobing HUANG Feng LUO Xiaoling LIN Peihua PENG Aitian LING Jinfeng CUI Yiping |
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| Institution: | 1. Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Key Laboratory of Green Prevention and Control on Fruits and Vegetables in South China, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of High Technology for Plant Protection, Guangzhou 5106402. Deqing County Agricultural Technology Extension Center, Deqing, Guangdong 526600 |
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| Abstract: | The aims are to recommend the fungicides for important diseases of rare fruits in pesticide registration, and effectively change the current situation of a lack of fungicides or no fungicide available for disease control of minor crops. Toxicity determination and field efficacy test were utilized to evaluate the control effect and safety of pyraclostrobin 30% SC in the control of wampee anthracnose and guava leaf spot. The test results showed that pyraclostrobin had better inhibitory effect on the mycelial growth of Colletotrichum gloeosporioides and Pestalotiopsis disseminatum, with EC50 of 0.0321 μg/mL and 2.0167 μg/mL respectively, which were significantly better than the effect of control fungicide of azoxystrobin. Pyraclostrobin 30% SC at 250 mg/kg had a good control effect against wampee anthracnose and guava leaf spot, the control efficacy of fungicide after spraying three times reached 78.68% and 77.45% respectively, which were significantly better than the control fungicide with pyraclostrobin 25% SC 200 mg/kg. In summary, pyraclostrobin 30% SC has a good control effect on both wampee anthracnose and guava leaf spot, and it can be applied and promoted in the control of the two fruit tree diseases. |
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| Keywords: | pyraclostrobin Colletotrichum gloeosporioides Pestalotiopsis disseminatum toxicity determination chemical control |
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