| 不同药剂防治水稻稻曲病田间药效试验 |
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| 引用本文： | 吴达粉,周金鑫,马明清,吴璇.不同药剂防治水稻稻曲病田间药效试验[J].大麦与谷类科学,2021,38(2):40-43. |
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| 作者姓名： | 吴达粉 周金鑫 马明清 吴璇 |
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| 作者单位： | 兴化市现代农业发展服务中心,江苏兴化225700;兴化市农业农村社会事务服务中心,江苏兴化225700 |
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| 摘 要： | 为筛选防治水稻稻曲病的高效药剂,同时验证在孕穗末期—破口初期施药对稻曲病的防效,2019—2020年连续2年开展了不同药剂防治水稻稻曲病田间试验。结果表明:19%啶氧·丙环唑SC 70 mL/667 m2、125 g/L氟环唑SC 50 mL/667 m2、40%咪铜·氟环唑SC 30 mL/667 m2、25%噻呋·嘧菌酯SC 40 mL/667 m2平均病指防效分别为89.95%、89.85%、87.05%、85.60%,体现了较高防效;75%肟菌·戊唑醇WG 15 g/667 m2,平均病指防效为81.30%,也有较高防效;而36%丙环·咪鲜胺SC 50 mL/667 m2平均病指防效仅为78.20%,防效稍差。前5种药剂可结合稻瘟病防治,在水稻孕穗末期—破口初期使用,能有效控制水稻稻曲病为害。
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| 关 键 词： | 稻曲病 药剂 穗防效 病指防效 |
Field Efficacy of Different Fungicides Against Rice False Smut |
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| WU Da-fen,ZHOU Jin-xin,MA Ming-qing,WU Xuan.Field Efficacy of Different Fungicides Against Rice False Smut[J].Barley and Cereal Sciences,2021,38(2):40-43. |
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| Authors: | WU Da-fen ZHOU Jin-xin MA Ming-qing WU Xuan |
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| Institution: | (Xinghua Modern Agricultural Development Service Center,Xinghua 225700,China;Xinghua Agricultural and Rural Social Affairs Service Center,Xinghua 225700,China) |
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| Abstract: | With the aim of selecting effective fungicides for controlling rice false smut,the present study determined the efficacy of different fungicides in controlling this disease from the end of booting stage to the beginning of heading stage.In 2019 and 2020,we carried out field trials to evaluate the efficacy of a number of fungicides in controlling rice false smut.As a result,125 g/L fluconazole SC applied at the rate of 50 mL/667 m2,19%picoxy propiconazole SC at 70 mL/667 m2,40% micuron fluconazole SC at 30 mL/667 m2,and 25%difuroxim azoxystrobin SC at 40 mL/667 m2 attained the average efficacy based on disease index of 89.95%,89.95%,87.05%,and 85.60% respectively,indicating that they are highly effective fungicides against rice false smut disease.Moreover,75% oxime tebuconazole WG applied at 15 g/667 m2 showed the control efficacy of 81.30%,so it is also an effective fungicide.On the other hand,36% prochloraz SC applied at 50 mL/667 m2 only showed the efficacy of 78.20%,revealing that it is less effective in controlling false smut.Thus,all the above fungicides except 36% prochloraz SC can be used to control rice false smut,which can be combined with the control of blast during the time period between the end of booting stage and the beginning of heading stage of rice. |
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| Keywords: | Rice false smut Fungicide Control efficacy based on diseased panicle rate Control efficacy based on disease index |
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