摘 要：为明确不同化学杀菌剂处理对莓茶早疫病病害的田间防治效果，本研究在3个试点开展田间药剂防治试验，分析比较各处理对病害的田间相对防治效果。结果显示，0.3%四霉素［水剂（AS）］和40.0%苯甲·吡唑酯［悬浮剂（SC）］在3个试验点均对莓茶早疫病表现出优异的防治效果，其平均防效分别为92.93%和88.38%。张家界市永定区立功桥村试验点中，0.3%四霉素（AS）与40.0%苯甲·吡唑酯（SC）防效无显著差异，且均显著高于40.0%苯醚甲环唑（SC）、20.0%吡唑醚菌酯（SC）和125 g/L氟环唑（SC）；三家馆乡垕王村中0.3%四霉素（AS）防效显著高于40.0%苯甲·吡唑酯（SC），且二者均显著高于40.0%苯醚甲环唑（SC）、20.0%吡唑醚菌酯（SC）及125 g/L氟环唑（SC）；在罗塔坪乡槟榔坪村，0.3%四霉素（AS）对病害的防效显著高于其他各处理。综合来看，0.3%四霉素（AS）和40.0%苯甲·吡唑酯（SC）整体防治效果突出，可作为防治莓茶早疫病的优选药剂。
关键词：四霉素；莓茶早疫病；杀菌剂；田间防效；杀菌剂筛选
中图分类号：S482.2 文献标志码：A DOI：10.3969/j.issn.1007-7146.2026.04.007
Abstract: To evaluate the field control efficacy of different chemical fungicides against vine tea early blight, field experiments were performed in three different vine tea plantations, and the relative field control efficacy of different fungicide treatments were compared in the current study. The results showed that 0.3% tetramycin [aqueous solution (AS)] and 40.0% difenoconazole-pyraclostrobin [suspension concentrate (SC)] exhibited excellent control effects against vine tea early blight in three experimental sites, and the average control efficiencies were 92.93% and 88.38%, respectively. At the experimental site of Ligongqiao Village, Yongding District, Zhangjiajie, there was no significant difference in control efficacy between 0.3% tetramycin (AS) and 40.0% difenoconazole-pyraclostrobin (SC), and both were significantly higher than that of 40.0% difenoconazole (SC), 20.0% pyraclostrobin (SC), and 125 g/L epoxiconazole (SC). In Houwang Village, Sanjiaguan Township, the control efficacy of 0.3% tetramycin (AS) was significantly higher than that of 40.0% difenoconazole-pyraclostrobin (SC), and both were significantly higher than that of 40.0% difenoconazole (SC), 20.0% pyraclostrobin (SC) and 125 g/L epoxiconazole (SC). In Binglangping Village, Luotaping Township, the control efficacy of 0.3% tetramycin (AS) was the best among all treatments. Overall, 0.3% tetramycin (AS) and 40.0% difenoconazole-pyraclostrobin (SC) exhibited good control efficacies and can be used as ideal agents for the control of vine tea early blight.
Keywords: tetramycin; vine tea early blight; fungicide; field control efficacy; screening of fungicide
（Acta Laser Biology Sinica, 2026, 35(4): 347-351）
Abstract: To evaluate the field control efficacy of different chemical fungicides against vine tea early blight, field experiments were performed in three different vine tea plantations, and the relative field control efficacy of different fungicide treatments were compared in the current study. The results showed that 0.3% tetramycin [aqueous solution (AS)] and 40.0% difenoconazole-pyraclostrobin [suspension concentrate (SC)] exhibited excellent control effects against vine tea early blight in three experimental sites, and the average control efficiencies were 92.93% and 88.38%, respectively. At the experimental site of Ligongqiao Village, Yongding District, Zhangjiajie, there was no significant difference in control efficacy between 0.3% tetramycin (AS) and 40.0% difenoconazole-pyraclostrobin (SC), and both were significantly higher than that of 40.0% difenoconazole (SC), 20.0% pyraclostrobin (SC), and 125 g/L epoxiconazole (SC). In Houwang Village, Sanjiaguan Township, the control efficacy of 0.3% tetramycin (AS) was significantly higher than that of 40.0% difenoconazole-pyraclostrobin (SC), and both were significantly higher than that of 40.0% difenoconazole (SC), 20.0% pyraclostrobin (SC) and 125 g/L epoxiconazole (SC). In Binglangping Village, Luotaping Township, the control efficacy of 0.3% tetramycin (AS) was the best among all treatments. Overall, 0.3% tetramycin (AS) and 40.0% difenoconazole-pyraclostrobin (SC) exhibited good control efficacies and can be used as ideal agents for the control of vine tea early blight.
Keywords: tetramycin; vine tea early blight; fungicide; field control efficacy; screening of fungicide
（Acta Laser Biology Sinica, 2026, 35(4): 347-351）
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