苯醚甲环唑浸种及苗期喷雾处理对玉米顶腐病的防治效果  

Control Effects of Seed Soaking and Spraying at Seedling Stage with Difenoconazole on Maize Top Rot Disease

作　　者：欧阳振华 甘林[2] 郑秀琴 黄伟群[3] 兰成忠[2] 代玉立[2] 杨秀娟[2] OUYANG Zhen-hua;GAN Lin;ZHENG Xiu-qin;HUANG Wei-qun;LAN Cheng-zhong;DAI Yu-li;YANG Xiu-juan(Wanong Hi-tech Corporation Limited,Fuzhou,Fujian 350109,China;Institute of Plant Protection,Fujian Academy of Agricultural Sciences/Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests/Fujian Engineering Research Center for Green Prevention and Control of Crop Pests,Fuzhou,Fujian 350013,China;Fujian Seed Station Fuzhou,Fujian 350001,China)

机构地区：[1]万农高科集团有限公司,福建福州350109 [2]福建省农业科学院植物保护研究所/福建省作物有害生物监测与治理重点实验室/福建省作物有害生物绿色防控工程研究中心,福建福州350013 [3]福建省种子总站,福建福州350001

出　　处：《福建农业科技》2024年第10期76-80,共5页Fujian Agricultural Science and Technology

基　　金：福建省科技计划省属公益类项目(2021R1024005);福建省农业农村厅项目(NYT2023-ZZ01)。

摘　　要：为探讨和筛选适宜的鲜食玉米顶腐病防控新方法,采用玉米种子浸种和苗期喷雾处理两种方式,分析了苯醚甲环唑单独使用及与其他抑菌剂联用对玉米顶腐病发生的影响。结果表明:玉米种子采用苯醚甲环唑(1000倍液)、苯醚甲环唑(1000倍液)+酸化水、酸化水浸种处理后,对玉米种子出苗安全,对顶腐病防效分别为60.49%、59.79%和51.75%。玉米苗期采用苯醚甲环唑(56.25 g·hm^(-2))、苯醚甲环唑(28.12 g·hm^(-2))+中生菌素(10.55 g·hm^(-2))及中生菌素(21.09 g·hm^(-2))喷雾处理后,对顶腐病防效分别为57.42%、78.22%和83.04%。苯醚甲环唑浸种和苗期喷雾处理均能显著抑制顶腐病发生,但其对病害防效显著低于中生菌素、苯醚甲环唑与中生菌素联用的防病效果。因此,在田间应用时可考虑将苯醚甲环唑与中生菌素联用以增加其对病害的防效。In order to explore and screen feasible new methods for the prevention and control of fresh maize top rot disease,the effects of difenoconazole alone and in combination with other antibacterial agents on the occurrence of corn top rot disease were analyzed by soaking corn seeds and spraying at the seedling stage.The results showed that the seed soaking with difenoconazole(1000 times liquid),difenoconazole(1000 times liquid)added with acidified water,and acidified water was safe for the maize emergence,and the control effects on the top rot disease were 60.49%,59.79%and 51.75%,respectively.After spraying difenoconazole(56.25 g·hm^(-2)),difenoconazole(28.12 g·hm^(-2))added with Zhongshengmycin(10.55 g·hm^(-2)),and Zhongshengmycin(21.09 g·hm^(-2))at the seedling stage of maize,the control effects on the top rot disease were 57.42%,78.22%and 83.04%,respectively.The seed soaking and seedling spraying with difenoconazole could significantly inhibit the occurrence of top rot disease,but its disease control effect was significantly lower than that with Zhongshengmycin,and that with the combination of difenoconazole and Zhongshengmycin.Therefore,the combination of difenoconazole and Zhongshengmycin could be considered in the field application to increase its control effect on the disease.

关 键 词：玉米顶腐病 苯醚甲环唑 浸种 喷雾 

分 类 号：S565.1[农业科学—作物学]