氯氟醚·吡唑酯等5种药剂对设施黄瓜靶斑病的田间防效

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中图分类号 S436.421.1 文献标志码A 文章编号 1007-7731（2026）07-0080-03

DOI号 10.16377/j.cnki.issn1007-7731.2026.07.020

Field control efficacy of 5 fungicides including menfentrifluconazole ⋅ pyraclostrobin against target spot of greenhouse cucumber

Wang Xinrui

（Beijing Tongzhou District PlantProtection Center，Beijing 1O11O4， China）

AbstractTo screen high efciency fungicides suitable for controling cucumber target spot in greenhouse cucumber in Tongzhou District，Beijing，using cucumber variety Zhongnong 16as the test material，6treatments were established， including 400g/L mefentrifluconazole·pyraclostrobin suspension concentrate （SC） at 25 mL/667 m² （treatment A）， 43% fluopicolide·trifloxystrobin SC at 15 mL/667 m² （treatment B）， 200g/L fluxapyroxad·trifloxystrobin SC at 30 mL/667 m² （treatment C）， 35% tebuconazole·prochloraz emulsion in water （EW） at 6O mL/667 m² （treatment D）， 400g/L mefentrifluconazole SC at 15 mL/667 m² （treatment E），and water control（CK）.The control efficacy against cucumber target spot，cucumber yield and safety of each fungicide treatment were determined.The results showed that all 5 fungicides had certain inhibitory efects on cucumber target spot，among which treatmentE provided the better control efficacy ranging from 83.12% to 89.11% at7 days after the first application and at 7 and 14 days after the second application，the control effcacy of treatment A and C at 14 days after the second application ranged from 76.34% to 77.96% ，the cucumber plot yield under each fungicide treatment was 185.16-231.23kg ，and treatment E showed the highest yield increase compared with CK，followed by treatment AandC.Allfungicide treatments weresafe for cucumber growth without phytotoxicity symptoms.In conclusion， 400g/L mefentrifluconazole SC at 15 mL/667 m² could be preferentially used for field control of cucumber target spot in greenhouse in the study area，and 400g/L （20 mefentrifluconazole·pyraclostrobin SC at 25 mL/667 m² and 200g/L fluxapyroxad·trifloxystrobin SC at 30 mL/667 m² could be applied as rotational fungicides.

Keywordscucumber target spot; field control efficacy; yield; safety

近年来，随着农业设施栽培技术的快速发展，黄瓜已成为可全年生产的大众蔬菜。（剩余3575字）